To see the other types of publications on this topic, follow the link: Hibiscus sabdariffa.
Journal articles on the topic 'Hibiscus sabdariffa'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Hibiscus sabdariffa.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Kwofie, J., H. M. Amoatey, W. Nunekpeku, J. K. Ahiakpa, and C. Katsepor. "Crossability Studies among Twenty Accessions of Roselle (Hibiscus sabdariffa L.)." Journal of Agricultural Science 9, no. 9 (August 15, 2017): 230. http://dx.doi.org/10.5539/jas.v9n9p230.
Full textAbstract:
Increasing exploitation of roselle (Hibiscus sabdariffa L.) and its products require that commercial varieties with superior attributes are developed to replace landrace varieties and to meet the growing demand for commercial-scale cultivation of the crop. In this study, twenty landrace varieties of roselle collected from three geographical regions of Ghana were artificially crossed in a pairwise mating scheme. The aim was to obtain relevant information pertaining to fertility status and extent of crossability among the accessions to facilitate breeding of improved varieties. Attempts at hybridisation were made both between and among 6 accessions of Hibiscus sabdariffa var Altissima and 14 accessions of Hibiscus sabdariffa var Sabdariffa. Crosses between accessions of Hibiscus sabdariffa var Altissima and Hibiscus sabdariffa var Sabdariffa yielded no hybrids, suggestive of a crossability barrier between the two mating groups. All intra-varietal crosses involving accessions of Hibiscus sabdariffa var Altissima were successful regardless of direction of cross while only few of the crosses among those of Hibiscus sabdariffa var Sabdariffa produced successful hybrids. Also fertility estimates of members of Hibiscus sabdariffa var Altissima were significantly higher (30.00%-80.00%) compared to those of var Sabdariffa (0.00%-43.00%). This implies that complete pairwise design could be used for intra-varietal crosses involving accessions of Hibiscus sabdariffa var Altissima, whereas only a partial pairwise design is feasible for members of Hibiscus sabdariffa var Sabdariffa.
2
Barros de Nogueira, Ruama Viana, Virginia Freitas Rodrigues, Sílvia Menezes de Faria Pereira, and Inêz Barcellos de Andrade. "FLORES DE HIBISCO (Hibiscus sabdariffa) COMERCIALIZADAS NO MUNICÍPIO DE CAMPOS DOS GOYTACAZES-RJ: UMA ANÁLISE DO PERFIL FITOQUÍMICO E DO USO POPULAR, CONSIDERANDO ATIVIDADES ATRIBUIDAS ÀS RESPECTIVAS CLASSES DE METABÓLIDOS SECUNDÁRIOS ENCONTRADAS." Revista Científica da Faculdade de Medicina de Campos 16, no. 1 (April 30, 2021): 12–18. http://dx.doi.org/10.29184/1980-7813.rcfmc.253.vol.16.n1.2021.
Full textAbstract:
As formas mais antigas para prevenção de doenças, tratamento e cura, estão na utilização das plantas medicinais. Dentre as várias espécies utilizadas pela população, encontra-se o Hibisco (Hibiscus sabdariffa). Pertencente à família botânica Malvaceae, o Hibisco é um arbusto anual, nativo dos continentes africano e asiático, que se encontra distribuído nas regiões tropicais e subtropicais de ambos os hemisférios, tornando-se naturalizado em muitas áreas das Américas. Estudos têm comprovado o uso de Hibisco como agente diurético, antimicrobiano, laxante, sedativo, anti-hipertensivo, entre outros. Mais recentemente, há indicativo de que o Hibisco possa agir como antioxidante, antimutagênico, antitumoral e antileucêmico. O presente trabalho teve como objetivo realizar uma análise fitoquímica preliminar nas flores de Hibiscus sabdariffa, comercializadas em Campos dos Goytacazes, RJ, e correlacionar os resultados obtidos com as atividades farmacológicas atribuídas às classes de metabólitos encontrados. O presente estudo revelou a presença de grande quantidade (52,09%) de metabólitos de alta polaridade nas flores de Hibisco. Análise fitoquímica de identificação revelou a presença do metabólito secundário da classe dos taninos, nas flores analisadas da espécie vegetal (Hibiscus sabdariffa). A análise de identificação de flavonoides, por sua vez, não permitiu confirmar a presença desse metabólito visto que a coloração da própria espécie mascarou o resultado. As atividades atribuídas, em referências bibliográficas, à espécie Hibiscus sabdariffa, em especial antimicrobiana e antibiótica, foi compatível com as atividades relacionadas à classe de metabólitos identificada na amostra. Tal estudo revela um resultado preliminar, mas pode nortear outros estudos na busca de substâncias com atividade antioxidante.
As formas mais antigas para prevenção de doenças, tratamento e cura, estão na utilização das plantas medicinais. Dentre as várias espécies utilizadas pela população, encontra-se o Hibisco (Hibiscus sabdariffa). Pertencente à família botânica Malvaceae, o Hibisco é um arbusto anual, nativo dos continentes africano e asiático, que se encontra distribuído nas regiões tropicais e subtropicais de ambos os hemisférios, tornando-se naturalizado em muitas áreas das Américas. Estudos têm comprovado o uso de Hibisco como agente diurético, antimicrobiano, laxante, sedativo, anti-hipertensivo, entre outros. Mais recentemente, há indicativo de que o Hibisco possa agir como antioxidante, antimutagênico, antitumoral e antileucêmico. O presente trabalho teve como objetivo realizar uma análise fitoquímica preliminar nas flores de Hibiscus sabdariffa, comercializadas em Campos dos Goytacazes, RJ, e correlacionar os resultados obtidos com as atividades farmacológicas atribuídas às classes de metabólitos encontrados. O presente estudo revelou a presença de grande quantidade (52,09%) de metabólitos de alta polaridade nas flores de Hibisco. Análise fitoquímica de identificação revelou a presença do metabólito secundário da classe dos taninos, nas flores analisadas da espécie vegetal (Hibiscus sabdariffa). A análise de identificação de flavonoides, por sua vez, não permitiu confirmar a presença desse metabólito visto que a coloração da própria espécie mascarou o resultado. As atividades atribuídas, em referências bibliográficas, à espécie Hibiscus sabdariffa, em especial antimicrobiana e antibiótica, foi compatível com as atividades relacionadas à classe de metabólitos identificada na amostra. Tal estudo revela um resultado preliminar, mas pode nortear outros estudos na busca de substâncias com atividade antioxidante.
3
Karmana, I. Wayan. "Artikel Review : Bioaktivitas Bunga Rosella (Hibiscus sabdariffa L.) Beserta Pemanfaatannya." Educatoria : Jurnal Ilmiah Ilmu Pendidikan 3, no. 3 (July 30, 2023): 208–16. http://dx.doi.org/10.36312/educatoria.v3i3.200.
Full textAbstract:
Hibiscus sabdariffa is a species of the Malvaceae family which has long been used by humans as a traditional medicine. The use of Hibiscus sabdariffa as a traditional medicine is related to its bioactivity. Hibiscus sabdariffa has several pharmacological potentials, namely: 1) anticancer; 2) antioxidants; 3) antibacterial; 4) antiaging; 5) antiseptic; and 6) antihypertensive. The method of writing this article is a literature review published online, especially on Google Scholar using the keywords Hibiscus sabdariffa, bioactivity and utilization of Hibiscus sabdariffa. The results of this review state that rosella flowers (Hibiscus sabdariffa L.) have potential as anticancer, antioxidants, antihypertensive antibacterials, and low caffeinated tea drinks.
4
Yuliastri, W. O., A. Diantini, M. Ghozali, I. Sahidin, and M. Isrul. "PHYTOCHEMICAL CONSTITUENT AND In-vitro CYTOTOXIC ACTIVITY OF Hibiscus sabdariffa L. CALYX FRACTION ON HUMAN BREAST CANCER CELL LINE MDA-MB-231." RASAYAN Journal of Chemistry 15, no. 03 (2022): 1619–25. http://dx.doi.org/10.31788/rjc.2022.1536694.
Full textAbstract:
Hibiscus sabdariffa L. is a medicinal plant that has various pharmacological activities. One of the activities of Hibiscus sabdariffa L. is the immunomodulatory activity closely connected with the anticancer activities. This study aimed to test the cytotoxic activity of Hibiscus sabdariffa L. Calyx Fractions against breast cancer cells (MDA-MB-231), determine the active fractions, and analyze the compounds of the active fraction of Hibiscus sabdariffa L. with LCMS. The Hibiscus sabdariffa L.Calyx was fractionated using vacuum liquid chromatography. Meanwhile, the cytotoxic activity was examined using the MTT method. The test results discovered that the Fraction A of Hibiscus sabdariffa L. Calyx is the active fraction with a score of IC50 187.89 µg/ml. The identification of Fraction A's chemical compounds using LC-MS discovered three identified compounds:tert-butyl-4-methoxy phenol Nigakilactone H and Stigmastan-3,6-dione. Since these compounds potentially function as active cytotoxic compounds,it is suggested that further studies isolate the active compounds from Fraction A of Hibiscus sabdariffa L.
5
Lestari, Gusti Ayu Dewi. "SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL BUNGA ROSELLA UNGU (Hibiscus sabdariffa L.)." Jambura Journal of Chemistry 4, no. 1 (March 10, 2022): 17–24. http://dx.doi.org/10.34312/jambchem.v4i1.11157.
Full textAbstract:
Ekstrak etanol bunga rosella ungu (Hibiscus sabdariffa L.) mengandung senyawa fitokimia potensial sebagai antioksidan. Tujuan penelitian ini adalah untuk mengetahui kandungan senyawa pada bunga rosella ungu (Hibiscus sabdariffa L.) serta potensinya sebagai antioksidan. Bunga rosella ungu (Hibiscus sabdariffa L.) diekstraksi menggunakan metode maserasi dan diperoleh persentase rendemen hasil sebesar 35,25%. Skrining fitokimia dilakukan dengan metode KLT dimana ekstrak etanol bunga rosella ungu (Hibiscus sabdariffa L.) positif mengandung alkaloid, flavonoid, tanin dan saponin. Hasil uji aktivitas antioksidan dengan menggunakan DPPH (2,2-difenil-1-pikrilhidrazil) diperoleh nilai IC50 sebesar 38,2939 ppm dimana ekstrak etanol bunga rosella ungu (Hibiscus sabdariffa L.) memiliki aktivitas antioksidan sangat kuat. Nilai AAI (antioxidant activity index) diperoleh 1,04. Nilai presisi dan linearitas pada metode ini adalah 7,67% dan r2 = 0,9929 sehingga metode ini dapat dikatakan memiliki presisi dan linearitas yang baik. Dari hasil penelitian yang telah dilakukan, maka dapat disimpulkan bahwa bunga rosella ungu (Hibiscus sabdariffa L.) memiliki aktivitas antioksidan yang sangat kuat karena mengandung senyawa flavonoid, alkaloid, tanin dan saponin yang dapat menangkal radikal bebas.
6
Kasimo, Elfred, Lisa Savitri, Mujtahid Bin Abd Kadir, Moh Alimansur, and Ester Lianawati Antoro. "TOKSISITAS KOMBINASI EKSTRAK ROSELA (Hibiscus sabdariffa L.) DAN PARE (Momordica charantia) DENGAN METODE BRINE SHRIMP LETHALITY TEST (BSLT)." GEMA KESEHATAN 15, no. 2 (December 28, 2023): 168–76. http://dx.doi.org/10.47539/gk.v15i2.441.
Full textAbstract:
Rosela (Hibiscus sabdariffa L.) dan pare (Momordica charantia) mengandung senyawa kimia yang bermanfaat bagi kesehatan, seperti asam fenolat, tannin, flavonoid, alkaloid, saponin, tanin, glikosida, dan steroid. Penelitian ini bertujuan untuk mengetahui tingkat toksisitas ekstrak kombinasi bunga rosela (Hibiscus sabdariffa L.) dan buah pare (Momordica charantia) terhadap larva Artemia salina Leach menggunakan metode Brine Shrimp Lethality Test (BSLT). Tingkat toksisitas tersebut ditunjukkan dengan nilai LC50. Metode: Penelitian uji toksisitas kombinasi ekstrak Hibiscus sabdariffa L dan Momordica charantia terhadap larva udang (Artemia salina L.) menggunakan metode BSLT. Dalam penelitian ini, ekstrak kombinasi bunga rosela dan buah pare diuji toksisitasnya terhadap larva Artemia salina Leach dengan konsentrasi 1000 ppm, 500 ppm, 200 ppm, 100 ppm, dan 50 ppm. Pengujian dilakukan sebanyak tiga kali pada masing-masing konsentrasi. Data hasil pengujian dianalisis menggunakan analisa probit, dan log konsentrasinya dihitung untuk mengetahui nilai LC50. Hasil : Ekstrak kombinasi bunga rosela (Hibiscus sabdariffa L.) dan buah pare (Momordica charantia) memiliki nilai LC50 sebesar 241,8 ppm. Kata kunci: BSLT, Hibiscus sabdariffa L, Momordica charantia Roselle (Hibiscus sabdariffa L.) and bitter melon (Momordica charantia) contain chemical compounds that are beneficial for health, such as phenolic acids, tannins, flavonoids, alkaloids, saponins, tannins, glycosides, and steroids. This study aims to determine the level of toxicity of the combined extract of roselle flowers (Hibiscus sabdariffa L.) and bitter melon fruit (Momordica charantia) against Artemia salina Leach larvae using the Brine Shrimp Lethality Test (BSLT) method. The LC50 value indicates the level of toxicity. Process: Research the toxicity test of a combination of Hibiscus sabdariffa L. and Momordica charantia extracts against shrimp larvae (Artemia salina L.) using the BSLT method. This research tested the combined extract of roselle flowers and bitter melon fruit for toxicity against Artemia salina Leach larvae at concentrations of 1000 ppm, 500 ppm, 200 ppm, 100 ppm, and 50 ppm. The test was carried out three times at each concentration. The test result data was analyzed using probit analysis, and the concentration log was calculated to determine the LC50 value. Results: The combination extract of roselle flowers (Hibiscus sabdariffa L.) and bitter melon fruit (Momordica charantia) had an LC50 value of 241.8 ppm. Keywords: BSLT, Hibiscus sabdariffa L, Momordica charantia
7
Firmasari, Firmasari, Ni Ketut Sumarni, Ruslan, and Hardi Ys. "PERSEN DEGRADASI EKSTRAK ETANOL KELOPAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SELAMA PENYIMPANAN THE PERCENTAGE OF ETHANOL EXTRACTS OF ROSELLE PETALS (Hibiscus sabdariffa L.) DURING STORAGE." KOVALEN: Jurnal Riset Kimia 5, no. 2 (August 31, 2019): 132–38. http://dx.doi.org/10.22487/kovalen.2019.v5.i2.9970.
Full textAbstract:
Ethanol extract of roselle petals (Hibiscus sabdariffa L.) is more stable in low pH than in high pH. The research aims to monitor and determine the effect of ratio content in ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce and the pH effect on the percentage of ethanol extract degradation during storage. Two independent variables implemented in this study, are ratio content of ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce and pH. Ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce with ratio content 0,5:1; 1:1; and 1:0 (w/w) and adjusted to pH 2, pH 3, pH 4, pH 5 and pH 6, respectively were investigated. The absorbance measurement of Ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce was depend on each treatment, then analyzed using completely randomized design. The percentage of ethanol extract of roselle petals (Hibiscus sabdariffa L.) degradation in tomato sauce decreased in ratio content 1:0 (w/w) at pH 2 with percentage content of degradation is 30.09%. Furthermore, after 10 days of storage, the highest percentage of ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce degradation is 93.33% with ratio content is 0.5:1 at pH 6 and the lowest is 30.09% with ratio content 1:0 at pH 2.
Keywords: Roselle petals, Ethanol Extract, Tomato Sauce, Percentage of Degradation
8
Choon Yoong Cheok and Anusuyah Ragunathan. "Anthocyanin degradation kinetics and thermodynamic analysis of Hibiscus rosa-sinensis L. Clitoria ternatea L. and Hibiscus sabdariffa L." Progress in Energy and Environment 19, no. 1 (August 23, 2022): 1–12. http://dx.doi.org/10.37934/progee.19.1.112.
Full textAbstract:
Anthocyanins are natural occurrence red pigments existed in most flowers with high health benefited values. These anthocyanins rich flowers have a short shelf life and fast degradation when in fresh stage. These anthocyanins rich flowers have a short shelf life and fast degradation when in fresh stage. Therefore, drying is a conventional way to preserve them from rotten in order to be reachable for urban consumers who have busy life style and limited space for planting. The present study was conducted to evaluate the anthocyanin degradation kinetics of Hibiscus rosa-sinensis L., Clitoria ternatea L. and Hibiscus sabdariffa L. at drying temperatures of 50, 60, 70 and 80 °C for durations of 10, 20, 30 and 40 min. Anthocyanin degradation kinetic order of Hibiscus rosa-sinensis L., Clitoria ternatea L. and Hibiscus sabdariffa L. were determined by constructing natural logarithm Arrhenius equation plots from k values obtained from zero-, first-, and second-order integrated rate law plots at each temperature levels of 50 °C, 60 °C, 70 °C and 80 °C, based on the highest coefficient of determination (R2). Fresh flower of Clitoria ternatea L. has been revealed possessed the highest amount of TMA followed by Hibiscus sabdariffa L. and the Hibiscus rosa-sinensis L. Results revealed that anthocyanins degradation for Hibiscus rosa-sinensis L. and Clitoria ternatea L. followed first-order kinetic behaviour, while Hibiscus Sabdariffa L. followed the second-order. Anthocyanins of Hibiscus Sabdariffa L. has been discovered having high k values which led to shorter half-life values. However, anthocyanins of Hibiscus Sabdariffa L. is more stable during heat drying treatment as evidenced by higher activation energy and activation enthalpy, but lower free Gibbs energy and absolute value of entropy in comparison to Hibiscus rosa-sinensis L. and Clitoria ternatea L. Therefore, Hibiscus sabdariffa L. is highly recommended to be used as food colorant in food processing industries which involve heating.
9
Freitas, Nélio Martins, Angela Maria Correa Mouzinho Santos, and Lucy Rose de Maria Oliveira Moreira. "AVALIAÇÃO FITOQUÍMICA E DETERMINAÇÃO DE MINERAIS EM AMOSTRAS de Hibiscus sabdariffa L (vinagreira)." Cadernos de Pesquisa 20, no. 3 (December 21, 2013): 65. http://dx.doi.org/10.18764/2178-2229.v20n3p65-72.
Full textAbstract:
O presente trabalho teve como objetivo determinar por espectroscopia de emissão óptica com plasma indutivamente acoplado (ICP OES) o teor dos minerais cobalto, cobre, ferro, fósforo, cálcio, magnésio,manganês, níquel, potássio e zinco, presentes nas folhas e no caule do Hibiscus sabdariffa L (vinagreira).Fez-se a triagem fitoquímica para verificar os compostos fitoquímicos como saponinas, taninos, fenóis, terpenos, esteróides, alcalóides, resinas, e flavonóides) da vinagreira coletada do município de São José de Ribamar-MA, onde os agricultores plantam o H. sabdariffa L) e comercializam para a maioria das feiras dessa região. Para os testes fitoquímicos realizados no caule e nas folhas da planta observaram-se saponinase esteróides moderamente positivo, taninos tanto condensado como hidrolisado fraco positivamente. As resinas foram encontradas moderadamente no caule e ausente na folha do H. sabdariffa L. Para os teste de flavonóides obteve reação forte para o caule e moderada para a folha. Observou-se a ausência de fenóis, terpenos e alcalóides. Em relação ao teor de metais presente no caule e na folha do H. sabdariffa L (vinagreira) verificaram-se respectivamente, uma quantidade significativa de ferro (11,91 e 30,04 mg/l) e cálcio (6,08 e 7,09 mg/l); para os demais minerais, o teor foi menor: magnésio (0,31 mg/l), potássio (0,36 e 0,72 mg/l) manganês (0,14 e 0,02 mg/l) e fósforo somente nas folhas (0,62 mg/l).Palavras-chave: Hibiscus sabdariffa L. Minerais. Espectroscopia. PHYTOCHEMISTRY EVALUATION AND DETERMINATION OF MINERAL SIN SAMPLES Hibiscus Sabdariffa L (vinegar)Abstract: This study aimed to determine by optical emission spectroscopy with inductively coupled plasma (ICP OES), the mineral content of cobalt, copper, iron, phosphorus, calcium, magnesium, manganese, nickel,potassium and zinc, present in the leaves and the stem of Hibiscus sabdariffa L (vinagreira). Became the phytochemical screening to check phytochemicals like saponins, tannins, phenols, terpenes, steroids, alkaloids, resins, and flavonoids) of vinegar collected in São José de Ribamar-MA, where farmers plant H. sabdariffa L ), and trade fairs for most of this region. For the tests performed phytochemicals in stems and leaves of the plant was observed saponins and steroids moderately positive, both condensed tannins hydrolyzateas weak positive. The resins were found moderately in stems and absent in leaf H. sabdariffa L. For the test flavonoids obtained strong reaction to stem and leaf to moderate. We observed the absence of phenols, terpenes and alkaloids. WRegarding the metal content present in the stem and leaf H. sabdariffa L (vinegar) respectively, a significant amount of iron (11,91 and 30,04 mg /l), calcium (6,08 and 7,09 mg/l) for the remaining minerals content was lower: Magnesium (0,31 mg/l), potassium (0,36 and 0,72 mg /l) Mn (0,14 and 0,02 mg/ l) and only on phosphor sheets (0,62 mg/l).Keywords: Hibiscus sabdariffa L. Mmineral. Spectroscopy. EVALUACIÓN FITOQUÍMICA Y DETERMINACIÓN DE MINERALES EN MUESTRA SEN MUESTRAS Hibiscus SabdariffaL (vinagre)Resumen: Este estudio tuvo como objetivo determinar por espectroscopia de emisión óptica con plasma acoplado inductivamente (ICP OES), la concentración de minerales de cobalto, cobre, hierro, fósforo, calcio,magnesio, manganeso, níquel, potasio y zinc, presentes en las hojas y el tallo de Hibiscus sabdariffa L (vinagrera). Se realizaron los ensayos generales para comprobar la presencia de fitoquímicos como saponinas,taninos, fenoles, terpenos, esteroides, alcaloides, resinas y flavonoides) en la vinagrera recogida en São José de Ribamar-MA, donde los agricultores siembran H. sabdariffa L, y la comercializan en las ferias de la mayor parte de esta región. En las pruebas realizadas para la detección de fitoquímicos en los tallos y hojas de la planta se observó saponinas y esteroides moderadamente positivos, taninos tanto condensados como hidrolizados dando positivo débil. Las resinas se encuentran moderadamente en los tallos y ausentes en las hojas de H. sabdariffa L. En los ensayos para flavonoides se obtuvo fuerte reacción en los tallos y moderada en las hojas. Se observó la ausencia de fenoles, terpenos y alcaloides. En cuanto al contenido de metales presentes en el tallo y en las hojas de H. sabdariffa L (vinagrera), respectivamente había una cantidad significativa de hierro (11,91 y 30,04 mg / l), y calcio (6,08 y 7 09 mg / l) para el restante de los minerales el contenido fue menor: de magnesio (0,31 mg / l), potasio (0,36 y 0,72 mg / l) Mn (0,14 y 0,02 mg / l ) y fósforo sólo en las hojas (0,62 mg/l).Palabras clave: Hibiscus sabdariffa L. Minerals. Espectroscopia.
10
Kazi, Atik Mubarak, and Ramasastry DVA. "Characterization of continuous Hibiscus sabdariffa fibre reinforced epoxy composites." Polymers and Polymer Composites 30 (January 2022): 096739112110609. http://dx.doi.org/10.1177/09673911211060957.
Full textAbstract:
The influence of fibre orientation on physical, mechanical and dynamic mechanical properties of Hibiscus sabdariffa fibre composites has been studied. The composites with longitudinal (0°), transverse (90°) and inclined (45°) fibre orientation were prepared using the hand layup technique. ASTM standards were used for characterization of continuous Hibiscus sabdariffa fibre composites. The composite with longitudinally placed fibres yields improved mechanical characteristics. The addition of longitudinal (0°) oriented continuous Hibiscus sabdariffa fibres to the epoxy enhances tensile strength by 460%, flexural strength by 160% and impact strength by 603% compared to neat epoxy. The longitudinal (0°) fibre oriented composite offers higher resistance to water absorption and thickness swelling compared to other types of composites. All continuous Hibiscus sabdariffa fibre epoxy composites possess an improved storage modulus than the neat epoxy resin. The glass transition temperature of continuous Hibiscus sabdariffa fibre composites is 8%–31% lower than that of neat epoxy. Scanning electron microscopy (SEM) images confirm the existence of voids in the matrix, fibre pullout and crack propagation near the fibre bundle, which indicates the stress transfer between fibre and matrix is non-uniform.
11
Purwati, Dewi Dwi, Gusrizal Gusrizal, and Endah Sayekti. "Rosella Petal Extract (Hibiscus sabdariffa Linn.) as a Reducing Agent in Silver Nanoparticle Synthesis and Its Antibacterial Activity." Jurnal Kimia Sains dan Aplikasi 26, no. 10 (December 21, 2023): 411–20. http://dx.doi.org/10.14710/jksa.26.10.411-420.
Full textAbstract:
Silver nanoparticles have superior properties that attract much attention because they can increase their effectiveness and efficiency compared to their macroscopic size. Silver nanoparticles have several benefits, one of which is as an antibacterial agent. Synthesis of silver nanoparticles was carried out by reducing silver ions (Ag+) to uncharged silver (Ag0) using a reducing agent from Hibiscus sabdariffa Linn. petal extract. This research aims to synthesize silver nanoparticles by studying several parameters that influence their formation, such as the pH of Hibiscus sabdariffa Linn. petal extract, reaction time, silver nitrate concentration, and Hibiscus sabdariffa Linn. petal extract concentration. The silver nanoparticles formed were then tested for their antibacterial activity. The experimental results showed that the best synthesis was performed using Hibiscus sabdariffa Linn. petal extract with pH 10, reaction time of 45 minutes, silver nitrate concentration of 1×10-4 M, and Hibiscus sabdariffa Linn. petal extract concentration of 0.004%. The synthesized silver nanoparticles, examined through a transmission electron microscope, exhibited a size distribution ranging from 2 to 26 nm with an average size of 12 ± 3 nm, which was stable with a storage time of 3 months. Silver nanoparticles showed antibacterial activity against Staphylococcus aureus. Hibiscus sabdariffa Linn. petal extract is a promising reducing agent for producing antibacterial silver nanoparticles, showcasing its potential in this application.
12
Adewole, A. M. "Organosomatic indices and histopathological response of Clarias gariepinus fed Roselle (Hibiscus sabdariffa) meal diets." Nigerian Journal of Animal Production 45, no. 5 (December 26, 2020): 199–206. http://dx.doi.org/10.51791/njap.v45i5.215.
Full textAbstract:
In the study, the effects of different dosages of Hibiscus sabdariffa meal diets on the organosomatic indices and histopathology of organs (n=20) of juvenile Clarias gariepinus was evaluated. The fish with initial mean weight and length: 10.94±0.02g and 10.28±0.04cm were stocked in triplicates per treatments. The fishes were fed twice daily at 5% body weight, for 12 weeks. Six isonitrogenous diets containing 40% crude protein were formulated and coded as Hibiscus sabdariffa meal1 (SM1Control), Hibiscus sabdariffa meal 2 (HSM2), Hibiscus sabdariffa meal 3 (HSM3), Hibiscus sbadariffa meal 4 (HSM4), Hibiscus sbadariffa meal 5 (HSM5) and Hibiscus sabdariffa meal 6 (HSM6), respectively. Organosomatic indices such as cardiosomatic index (CSI), Hepatosomatic index (HIS), Renalsomatic index (RSI), Visceralsomatic index (VSI), Cerebrosomatic index (CBSI) and Fat deposit index (FDI) of the fish were measured using standard methods. Histopathological examinations of the organs were carried out following routine laboratory techniques. Data were analyzed using descriptive statistics and ANOVA at á 0.05. The result revealed asignificant differences in all the orgaosomatic indices except VSI within the treatments and control. The histopathological examinations of the liver of C. gariepinus revealed a gradual changes from mild to moderate and severe diffuse hepatic vacuolar degenerations as the concentrations of H. sabdariffa meal diets increased. The intestine showed a mild stunted gastric villi in fish fed HSM4 diet which had the highest growth data not shown. The study revealed that the consumption of unnecessarily high dose of H. sabdariffa for a long period should be taken with caution, despite the improved growth performance observed. Further studies on the effect of processing cum detoxification of the Roselle in fish as an animal model should be undertaken.
13
Zheng, Woo Chieh, Nurhazwani Ismail, Christine Olga Boboi, and Chua Bee Lin. "Life Cycle Analysis for Hibiscus Sabdariffa Powder Manufactured by Freeze Drying for Wastewater Application." MATEC Web of Conferences 335 (2021): 01002. http://dx.doi.org/10.1051/matecconf/202133501002.
Full textAbstract:
Synthetic coagulants currently used to treat dye wastewater in the water treatment industry has been found to produce large amounts of waste and is bad for the environment. The research then presents two different methods of preparing Hibiscus Sabdariffa as a natural coagulant which are direct method and freeze-drying method to possibly replace synthetic coagulant in treating dye wastewater. The two different methods of preparing natural coagulant Hibiscus Sabdariffa are compared in terms of protein retention and coagulation performance at removing dye from dye wastewater. This is to determine which method of preparation is better at preparing a Hibiscus Sabdariffa as a natural coagulant to be used in the water treatment industry. Three analysis are done to determine the optimum concentration of Hibiscus Sabdariffa powder and freeze-drying duration is based on (i) surface morphology, (ii) water solubility and (iii) water activity. Optimum concentration of Hibiscus Sabdariffa powder is 20wt% and 24-hour freeze-drying duration. Another analysis is done to compare protein retention of each methods of preparation using (iv) Fourier Transform Infrared (FTIR) spectroscopy testing. Protein in Hibiscus Sabdariffa prepared using freeze drying is completely retained based on Fourier Transform Infrared spectroscopy results. Supporting data of protein retention properties of freeze drying is proven by water activity in Hibiscus Sabdariffa powder is at 0.478 and below the 0.6 threshold value. Water activity of 0.478 means that there is not enough water content in Hibiscus Sabdariffa powder for microorganisms to grow and degrade the protein. Optimum coagulant dosage and pH value that Hibiscus Sabdariffa prepared using the two different methods best works in is determined based on two experiments called (v) effects of coagulant dosage on dye removal percentage and (vi) effect of pH value of preparation methods on colour removal percentage. Coagulation performance of both preparation methods are also determined using experiment (v) and (vi). Hibiscus Sabdariffa prepared using freeze drying has better coagulation performance with higher colour removal percentage at lower required coagulant dosage and higher dye removal percentage at varied pH values compared to direct method. As a result, freeze drying is better in terms of coagulation performance compared to direct method at preparing natural coagulant Hibiscus Sabdariffa. Coagulation performance of natural and chemical coagulant is compared using (vii) jar test comparison between natural and chemical coagulant on colour removal. This is to determine if coagulation performance of natural coagulant is comparable to chemical coagulant. Coagulation performance of natural coagulant is only slightly lower than synthetic coagulant at colour removal percentage of 91.2% compared to 92.3%. This makes the coagulation performance of natural coagulant comparable to synthetic coagulant allowing it to be an alternative to synthetic coagulant based on coagulation performance. Therefore, Life Cycle Analysis (LCA) will then be conducted to compare the better method of preparation of natural coagulant which is freeze-drying of natural coagulant Hibiscus Sabdariffa to chemical coagulant alum. Life Cycle Analysis done is to determine, evaluate and compare natural against chemical coagulant based on 3 sustainability aspects economic, environment and social aspects. This is to determine the feasibility of natural coagulant Hibiscus Sabdariffa in the water treatment industry on whether it is a possible alternative or replacement to the currently used synthetic coagulant alum. Based on Life Cycle Analysis natural coagulant is the better alternative compared to chemical coagulant based on impact towards the environment and health and well-being of society. However, the implementation of natural coagulant in the water treatment industry is still not feasible as production cost of natural coagulant is 126.86 times more expensive compared to chemical coagulant. As a result, currently Hibiscus Sabdariffa as a natural coagulant is not able to replace synthetic coagulant alum in the water treatment industry.
14
Kurnia, Felicia, Tan Suyono, Ali Napiah Nasuyion, and Sahna Ferdinan. "Formulation And Testing Of The Effectiveness Of The Ethanol Extract Lotion Of Rosella Flower (Hibiscus Sabdariffa L.) Lotion As A Skin Moisturizer." International Journal of Health and Pharmaceutical (IJHP) 2, no. 4 (August 7, 2022): 633–43. http://dx.doi.org/10.51601/ijhp.v2i4.103.
Full textAbstract:
Rosella flowers are able to provide a moisturizing and smoothing effect because they contain many substances that are useful for the skin, rosella flowers are also synonymous with a sour taste so that it gives a fresh sensation. In this study, the ethanolic extract of rosella flowers used was at a concentration of 2%, 2.5%, 3%, and 5%. This type of research is experimental research using a pre-test and post-test control group design. The sample of this research is Rosella flower extract lotion (Hibiscus Sabdariffa L.). Data analysis using ANOVA. The results showed that the entire concentration group of rosella flower (Hibiscus Sabdariffa L.) ethanol extract in this study was effective in moisturizing the skin. Ethanol extract of rosella flower (Hibiscus Sabdariffa L.) which is most effective in moisturizing the skin is ethanol extract with a concentration of 5%. The entireconcentration group of Rosella flower (Hibiscus Sabdariffa L.) ethanol extract in this study was effective in smoothing the skin. The ethanol extract of rosella flower (Hibiscus Sabdariffa L.) which was most effective in smoothing the skin was ethanol extract with a concentration of 5%.
15
Abreu, Bruna Barbosa, Cintya Regina Nunes Sousa, Juliana Carvalho Passos, Anne Rafaele Silva Marinho, Amanda Castro Amorim Serpa Brandão, and Regilda Saraiva dos Reis Moreira-Araújo. "Composição centesimal, compostos bioativos e atividade antioxidante em cálice de hibisco (Hibiscus sabdariffa L.)." Jornal Interdisciplinar de Biociências 4, no. 1 (January 13, 2020): 1. http://dx.doi.org/10.26694/jibi.v4i1.7618.
Full textAbstract:
Hibiscus sabdariffa L. é uma planta originária da Índia, do Sudão e da Malásia. Tendo em vista a busca de alimentos ricos em compostos fenólicos e consequentemente com alta atividade antioxidante, o hibisco apresenta-se como uma planta com alta perspectiva. Neste contexto, estudos sobre a caracterização completa de seus componentes podem ampliar o âmbito de aplicações do hibisco, portanto, o presente trabalho tem como objetivo determinar a composição centesimal, compostos bioativos e atividade antioxidante em cálice de Hibiscus sabdariffa L. As análises foram realizadas em duplicata no Laboratório de Bromatologia e Bioquímica dos Alimentos e Sala de Antioxidantes da Universidade Federal do Piauí. Os cálices utilizados como amostras na referida pesquisa foram adquiridos no comercio varejista de Teresina-PI. Foram determinados teores de umidade, cinzas, lipídeos, proteínas, carboidratos, valor energético total, compostos fenólicos totais, flavonóides totais, carotenoides, antocianinas, ácido ascórbico, proantocianidinas e atividade antioxidante. Os teores de compostos fenólicos totais e atividade antioxidante em H. sabdariffa L. foram respectivamente iguais a 429,84 ± 5,16 (EAG/100g) e 626,32 ± 8,03 (μmol trolox/L). Concluiu-se que o cálice de hibisco possui altos teores de cinzas totais, carboidratos, fenólicos totais e atividade antioxidante, bem como baixos teores de lipídeos e proteínas.
16
Onyeukwu, Onyeka Benjamin, Dumebi Chidinma Dibie, and Ogochukwu Tracy Njideaka. "Hibiscus sabdariffa - uses, nutritional and therapeutic benefits - A review." Journal of Bioscience and Biotechnology Discovery 8, no. 2 (April 30, 2023): 18–23. http://dx.doi.org/10.31248/jbbd2023.178.
Full textAbstract:
Hibiscus sabdariffa is a shrub that belongs to the family Malvacea. Over 200 different species of Hibiscus exist worldwide. Hisbiscus sabdariffa has been noted to have a high nutritional potential, particularly in the leaves, calyces, and seeds. The Roselle calyx, which is used to make a variety of beverages, has been said to contain a significant amount of vitamins, minerals, flavonoids, protein, lipids, carbs, and other nutrients. There are reports on the plants' antioxidant, antihypertensive, hepatoprotective, nutritive, and antihyperlipemic qualities. Reviewing the uses, the nutritional worth and therapeutic benefits of Hibiscus sabdariffa is the goal of this paper.
17
Enyidi, Uchechukwu Dennis, and I. Ayogu. "Substitution of Hibiscus sabdariffa with Curcuma longa in the Diets of Clarias gariepinus and the Effects on the Growth, Nutrient, and Hematobiochemistry." Journal of Aquaculture and Fish Health 12, no. 2 (May 27, 2023): 269–80. http://dx.doi.org/10.20473/jafh.v12i2.31675.
Full textAbstract:
Phytogenic feed additives are plausible alternatives to antibiotics and serve as growth promoters in aquafeed. This research aims at finding the effects of varying inclusions of natural antioxidants like hibiscus (Hibiscus sabdariffa L.) and turmeric (Curcuma longa) on the growth, hematology, and nutrient utilization of Clarias gariepinus after 60 days feeding. This research used six feeds labeled as F1- F6 that varied in the composition of Curcuma longa and Hibiscus sabdariffa. The weight (g) inclusions of C. longa and H. sabdariffa were as follows, F1 0:250, F2 50:200, F3 100:15, F4 150:100, F5 200:50 and F6 250:0. Juvenile African catfish stocked at 9 catfish per 15L aquaria per 3 replicate aquariums (27/treatment feed) were fed for 60d. The catfish fed with F1 (250g H. sabdariffa) had the best specific growth rate 5.76±0.04 % day-1, lowest feed conversion ratio 1.01±0.01, weight gain 31.65±0.13 g, and protein efficiency ratio 0.96±0.07. The growth of African catfish increased with the increasing inclusion of hibiscus supplements. Hematobiochemical parameters ALT, AST was better for catfish fed high hibiscus supplements. We noticed that hibiscus inclusion was inversely proportional to cholesterol and total triglycerides levels of fish. The deposit of adipose tissues in the catfish was higher, with increasing inclusion of hibiscus than turmeric supplement.
18
Palupi, Dian, Riska Desi Aryani, Sukarsa Sukarsa, and Sri Lestari. "Hubungan Kekerabatan Fenetik 6 Spesies Anggota Genus Hibiscus Berdasarkan Karakter Morfologi." Bioscientist : Jurnal Ilmiah Biologi 11, no. 1 (June 30, 2023): 98. http://dx.doi.org/10.33394/bioscientist.v11i1.6542.
Full textAbstract:
The Hibiscus genus is a member of the Malvaceae family with striking flowers of various colors. Hibiscus is a genus that is easy to find in Indonesia because it is usually used as an ornamental plant, hedge plant, cut flower, medicinal plant, or tea for drinking. This research was conducted to know the phenetic relationship of 6 species of Hibiscus based on morphological characters. The research was conducted by observing 57 morphological characteristics of 6 species of Hibiscus, then UPGMA (Unweighted Pair Group Method with Arithmatic Mean) analysis using MEGA 11 software. The samples in this study were six species belonging to the Hibiscus genus, namely Hibiscus rosa-sinensis L., Hibiscus tiliaceus L., Hibiscus macrophyllus (Blume) Okenlada, Hibiscus mutabilis L., Hibiscus sabdariffa L., and Hibiscus acetosella Welw. ex Hiern. The results showed that 6 species of Hibiscus formed 3 clusters based on differences in habitus and stem diameter. H. tiliaceus and H. macrophyllus formed cluster one, H. acetosella and H. sabdariffa formed cluster two, while H. rosa-sinensis and H. mutabilis formed cluster three. The closest phenetic relationship is between H. acetosella and H. sabdariffa, with a dissimilarity index of 0.140 or 86% similarity. The furthest phenetic relationship was in H. rosa-sinensis and H. macrophyllus with a dissimilarity index of 0.737 or a similarity percentage of 26.3%.
19
Adefolalu, F. S., J. S. Salawa, T. Y. Gara, and A. N. Abubakar. "Hypoglycemic and Hypolipidemic Effect of Methanol Extract of Hibiscus Sabdariffa Seed in Alloxan Induced Diabetic Albino Rats." Nigerian Journal of Basic and Applied Sciences 27, no. 2 (May 27, 2020): 151–56. http://dx.doi.org/10.4314/njbas.v27i2.20.
Full textAbstract:
This study investigated the hypoglycemic and hypolipidemic effect of the oral administration of methanol extract of Hibiscus sabdariffa seed in alloxan induced diabetic albino rats. Two different doses (200 and 400 mg/kg) of the methanol extract of Hibiscus sabdariffa seed were administered daily to two groups of diabetic rats for a period of two weeks. Metformin (250 mg/kg) was given as the reference standard drug. Phytochemical, acute toxicity, fasting blood glucose, body weight, cholesterol, triglycerides and lipoproteins levels were determined using standard methods. Acute toxicity of methanol extract of Hibiscus sabdariffa seed was estimated to be greater than 5000 mg/kg body weight. There was an initial decrease in the body weight of the experimental animals after induction of diabetes which increased significantly (p<0.05) by the second week of treatment. The fasting blood glucose levels of the treated diabetic rats were significantly decreased at the second week of treatment with the group that received 400 mg/kg of extract recording the lowest fasting blood glucose level. The cholesterol, triglycerides and low density lipoproteins levels of the diabetic treated rats were significantly reduced while the high density lipoproteins level significantly increased. It can therefore be concluded that Hibiscus sabdariffa seed has the ability to lower blood sugar and maintain a stable lipid level.
Keywords: Hypoglycemic, hypolipidemic, Alloxan, Phytochemical, Hibiscus sabdariffa
20
Andraini, Trinovita, and Sophie Yolanda. "Prevention of insulin resistance with Hibiscus sabdariffa Linn. extract in high-fructose fed rat." Medical Journal of Indonesia 23, no. 4 (January 27, 2015): 192–6. http://dx.doi.org/10.13181/mji.v23i4.848.
Full textAbstract:
Background: Dyslipidemia and stress oxidative play an important role as the cause of insulin resistance. One herb that has potent antioxidant effect and may improve dyslipidemia is Hibiscus sabdariffa Linn. The aim of this study was to evaluate the effect of Hibiscus sabdariffa Linn. extract on fasting blood glucose level, fasting blood insulin level, and insulin resistance index (HOMA-IR) in high-fructose fed rat.Methods: This was an experimental study in 25 Sprague-Dawley rats which were administered with a high-fructose diet (10% ad libitum) and Hibiscus sabdariffa Linn. extract at a dose of 100, 200, and 400 mg/kgBW/d simultaneously for 5 weeks. At the end of study, fasting blood glucose level, fasting blood insulin level and insulin resistance index (HOMA-IR) were measured.Results: Fasting blood glucose, blood insulin, and HOMA-IR level of rats given high-fructose diet with Hibiscus sabdariffa Linn. at dose 100 mg/kgBW/d were not significantly different than the group of rats given only high-fructose fed. While at the dose of 400 mg/kgBW/d, they were significantly lower than the group given only high-fructose fed (4.84 mmol/L vs 6.11 mmol/L, 0.07 µU/L vs 0.3 µU/L, and 0.02 vs 0.08 respectively).Conclusion: Oral administration of Hibiscus sabdariffa Linn. could prevent the development of insulin resistance induced by high-fructose diet in the rat.
21
Mohammed Nemma, Noorullah, and Zainab Sabeeh Sadeq. "Eco-Friendly Synthesis of Ag-ZnO Nanocomposite Using Aloe-vera, Hibiscus Sabdariffa Plants and Their Antibacterial and Anti-fungi Activities." Iraqi Journal of Physics 21, no. 4 (December 1, 2023): 14–23. http://dx.doi.org/10.30723/ijp.v21i4.1136.
Full textAbstract:
The current study used extracts from the aloe vera (AV) plant and the hibiscus sabdariffa flower to make Ag-ZnO nanoparticles (NPs) and Ag-ZnO nanocomposites (NCs). Ag/ZnO NCs were compared to Ag NPs and ZnO NPs. They exhibited unique properties against bacteria and fungi that aren't present in either of the individual parts. The Ag-ZnO NCs from AV showed the best performance against E. coli, with an inhibition zone of up to 27 mm, compared to the other samples. The maximum absorbance peaks were observed at 431 nm and 410 nm for Ag NPs, at 374 nm and 377 nm for ZnO NPs and at 384 nm and 391 nm for Ag-ZnO NCs using AV leaf extract and hibiscus sabdariffa flower extract, respectively. Using field emission-scanning electron microscopes (FE-SEM), the green synthesis of the shown NPs and NCs was found. The Ag NPs particle sizes ranged from 16.99 to 26.39 nm for AV and from 13.11 to 29.50 nm for hibiscus sabdariffa flowers, respectively. The particle size of ZnO NPs ranged from 23.04 to 32.58 nm and from 37.99 to 79.59 nm via AV and hibiscus sabdariffa flowers, respectively. Finally, the particle size of the Ag/ZnO nanocomposite ranged from 22.39–40.05 nm and from 59.73–87.05 nm via the AV and hibiscus sabdariffa flowers, respectively.
22
Baihaqi, Ridwan, M. Yulis Hamidy, and Eka Bebasari. "Efek Analgetik Ekstrak Etanol Kelopak Rosella (Hibiscus sabdariffa L) Pada Mencit Jantan (Mus musculus)." Jurnal Ilmu Kedokteran 8, no. 2 (December 29, 2017): 64. http://dx.doi.org/10.26891/jik.v8i2.2014.64-69.
Full textAbstract:
Indonesia has been known for its traditional medicine and one of the plants used for tradisional medicine is Hibiscussabdariffa L. The roselle (Hibiscus sabdariffa L) calyx has antipyretic effect by blocking prostaglandin synthesis. Thepurpose of this study was to find out the existences of analgesic effect of roselle (Hibiscus sabdariffa L) calyx ethanolextract. This experimental research used a post test only design that was conducted on 25 male mices weighting 20-35 g. The mices were divided into 5 treatment groups and given the CMC-Na 0,5% (negative control), asetosal 65 mg/kgBB (positive control) and groups of roselle (Hibiscus sabdariffa L) calyx ethanol extract dose of 200 mg/kgBB,400 mg/kgBB and 800 mg/kgBB. Pain stimulus was given chemically by using 1% acetic acid that injectedintraperitoneally 30 minutes after sample was given the extract, the response of the mices will be writhing. It calledpositive response if percentage potency of analgesic e” 50%. The result of this research showed that all dosage ofroselle (Hibiscus sabdariffa L) calyx ethanol extract had an analgesic effect.
23
Fauziah, Prima Nanda, Imas Latifah, Masdianto Masdianto, Despiagia Pitaloka, and Fakhrizal Hariyanto Wahdi. "Efek Antibakteri Infusum Bunga Rosella Terhadap Staphylococcus saprophyticus Penyebab Infeksi Saluran Kemih." Anakes : Jurnal Ilmiah Analis Kesehatan 8, no. 1 (March 30, 2022): 59–69. http://dx.doi.org/10.37012/anakes.v8i1.868.
Full textAbstract:
Staphylococcus saprophyticus merupakan salah satu bakteri penyebab infeksi saluran kemih (ISK). Infeksi Saluran Kemih (ISK) merupakan salah satu masalah kesehatan yang sering menyerang pria dan wanita dari segala usia dengan berbagai gambaran klinis dan episode yang disebabkan oleh mikroorganisme seperti bakteri. Kelopak bunga rosella (Hibiscus sabdariffa L.) merupakan salah satu tanaman yang dapat dijadikan alternatif sebagai obat tradisional. Penelitian ini bertujuan untuk mengetahui efek antibakteri ekstrak infusum kelopak bunga rosella (Hibiscus sabdariffa L.) dalam menghambat pertumbuhan dan Staphylococcus saprophyticus ATCC15305 dengan metode MIC dan difusi sumuran. Metode: Penelitian ini menggunakan metode experimental di Laboratorium Mikrobiologi Prodi Analis Kesehatan Universitas MH Thamrin dengan konsentrasi infusum yang digunakan adalah 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, dan 10% serta kontrol positif Amoxicillin. Hasil penelitian menjukkan bahwa konsentrasi 100%, 80%, 70%, 60%, 50%, 40%, dan 30% memiliki perbedaan signifikan yang diperoleh untuk bakteri ialah Staphylococcus saprophyticus ATCC15305 0.0000 (p 0.05) yang berarti hipotesis diterima (terdapat perbedaan bermakna). Infusum kelopak bunga rosella (Hibiscus sabdariffa L.) mempunyai daya hambat terhadap pertumbuhan bakteri Staphylococcus saprophyticus ATCC15305. Kata Kunci : Antibakteri, Hibiscus sabdariffa L., ISK, Staphylococcus saprophyticus
24
Elly Mulyani, Sari Yanti, Dewi Winni Fauziah, Tika Hardini, Fadillah Sari, Parwito Parwito, and Wismalinda Rita. "Pemanfaatan Seduhan Teh Bunga Rosella (Hibiscus Sabdariffa L.) Sebagai Antioksidan Di SMA Negeri 9 Kota Bengkulu." JURNAL BESEMAH 3, no. 1 (January 4, 2024): 1–8. http://dx.doi.org/10.58222/jurnalbesemah.v3i1.365.
Full textAbstract:
Antioksidan merupakan molekul yang mampu memperlambat atau mencegah proses oksidasi molekul lain. Oksidasi adalah reaksi kimia yang dapat menghasilkan radikal bebas, sehingga memicu reaksi berantai yang dapat merusak sel. Banyak penelitian menunjukkan bahwa tanaman rosella (Hibiscus sbdariffa L.) bermanfaat sebagai antioksidan. Salah satu senyawa yang berperan sebagai penangkal radikal bebas yang terkandung dalam rosella (Hibiscus sabdariffa L.) adalah kandungan senyawa fenolik. Kegiatan dilakukan di SMA Negeri 9 Kota Bengkulu. Kegiatan ini dilakukan dengan memberikan pemahaman kepada siswa siswi SMA Negeri 9 Kota Bengkulu yang dilakukan dengan beberapa rangkaian yang tentunya mengedukasi, diantara kegiatan yang dilakukan adalah sosialisasi, penyuluhan, pembagian teh bunga rosella, pembagian brosur. Hasil dari kegiatan ini diharapkan siswa siswi kelas XII MIPA 2 SMA Negeri 9 Kota Bengkulu mengetahui pengaruh seduhan teh bunga rosella (Hibiscus sabdariffa L.) untuk kesehatan terutama sebagai antioksidan, efek samping, dan cara pembuatan teh bunga rosella (Hibiscus sabdariffa L.)
25
Çömlekcioğlu, Nazan, and Ashabil Aygan. "Farklı Tekniklerle Elde Edilen Hibiscus sabdariffa L. Özütünün Yağ Asitleri, Biyoaktif İçeriği ve Antimikrobiyal Aktivitesi." Turkish Journal of Agriculture - Food Science and Technology 8, no. 12 (December 27, 2020): 2723–28. http://dx.doi.org/10.24925/turjaf.v8i12.2723-2728.4015.
Full textAbstract:
Hibiscus sabdariffa L. (Hibiskus) is a plant that belongs to the Malvaceae family and and is a rich source of anthocyanins and other bioactive compounds. In this study, the total phenolic and flavonoid content, antioxidant and antimicrobial activities of commercially supplied Hibiscus sabdariffa calyx extracts obtained by two different extractors (soxhlete and ultrasonic bath) were investigated. In addition, fatty acids were analysed by GC-MS analysis, 14 different fatty acids were determined and the major fatty acid components of extracts obtained from plant calyxes were palmitic acid (15.25%) and oleic acid (32.18%) and linoleic acid (30.77%). The ultrasonic bath was found to be more effective to reveal the bioactive contents of the extracts than the soxhlete. Total phenolic content and flavonoid values of plant calyx extracts (USB) were 23.29 and 3.08 mg ml-1, respectively, and FRAP and IC50 (% DPPH) values were 47.54 µg g-1 and 0.61 mg ml-1, respectively. Antimicrobial activity experiment carried out with total of 9 microorganisms consisting of seven bacteria and two yeast showed that H. sabdariffa extracts had dose-depended inhibition on test microorganisms but S. cerevisia.
26
Hariyono, Hariyono. "PEMBERIAN INFUSED WATER ROSELLA (Hibiscus Sabdariffa L.) TERHADAP STABILISASI HEMODINAMIK (MEAN ARTERIAL PRESSURE AND PULSE PRESSURE) PADA PENDERITA HIPERTENSI A LITERATURE RIVIEW." Jurnal Insan Cendekia 8, no. 1 (April 1, 2021): 19–28. http://dx.doi.org/10.35874/jic.v8i1.796.
Full textAbstract:
Introduction: hypertension was a blood vessel disease and was the most common in the community. The administration of rosella (Hibiscus sabdariffa l. ) was used as a new way to reduce the risk of heart and blood vessel disease including hypertension, to stabilize mean arterial pressure and pulse pressure in hypertensive patients after infused rosella water and hibiscus sabdariffa l which was linked to the literature empirical published in the last five years. Researched methods: design: a literature review. Data sources from comprehensive electronic searched searches conducted on google scholar (2015-2020), PubMed (2015-2020), complementary index (2015-2020), oaister (2015-2020), articles used in this review were published in Bahasa English and Indonesian. Results: researched in the searched for 10 journals, found that consumption of roselle could reduce systolic blood pressure by an average of 5. 5% while diastolic blood pressure was 4. 0%. So that changes in mean arterial pressure and pulse pressure were more stable after consuming hibiscus sabdariffa l. Conclusion: Previous studies had shown that there was an effect of infused water rosella (Hibiscus sabdariffa l. ) on stabilization of mean arterial pressure and pulse pressure in hypertensive patients.
27
Zimmerman, T. W., C. Montilla, and K. M. Emanuel. "Tropical Hibiscus sabdariffa fruit breeding." Acta Horticulturae, no. 1127 (November 2016): 51–54. http://dx.doi.org/10.17660/actahortic.2016.1127.9.
Full text
28
Kim, HaiVin, YoungSu Jang, JaeSang Ryu, DaHye Seo, Sak Lee, SungSoo Choi, DongHyun Kim, SangHyun Moh, and JungU Shin. "The Dipeptide Gly-Pro (GP), Derived from Hibiscus sabdariffa, Exhibits Potent Antifibrotic Effects by Regulating the TGF-β1-ATF4-Serine/Glycine Biosynthesis Pathway." International Journal of Molecular Sciences 24, no. 17 (September 3, 2023): 13616. http://dx.doi.org/10.3390/ijms241713616.
Full textAbstract:
TGF-β1, a key fibrotic cytokine, enhances both the expression and translocation of the activating transcriptional factor 4 (ATF4) and activates the serine/glycine biosynthesis pathway, which is crucial for augmenting collagen production. Targeting the TGF-β1-ATF4-serine/glycine biosynthesis pathway might offer a promising therapeutic approach for fibrotic diseases. In this study, we aimed to identify a proline-containing dipeptide in Hibiscus sabdariffa plant cells that modulates collagen synthesis. We induced Hibiscus sabdariffa plant cells and screened for a proline-containing dipeptide that can suppress TGF-β1-induced collagen synthesis in fibroblasts. Analyses were conducted using LC-MS/MS, RT-qPCR, Western blot analysis, and immunocytochemistry. We identified Gly-Pro (GP) from the extract of Hibiscus sabdariffa plant cells as a dipeptide capable of suppressing TGF-β1-induced collagen production. GP inhibited the phosphorylation of Smad2/3 and reduced the expression of ATF4, which is upregulated by TGF-β1. Notably, GP also decreased the expression of enzymes involved in the serine/glycine biosynthesis and glucose metabolism pathways, such as PHGDH, PSAT1, PSPH, SHMT2, and SLC2A1. Our findings indicate that the peptide GP, derived from Hibiscus sabdariffa plant cells, exhibits potent anti-fibrotic effects, potentially through its regulation of the TGF-β1-ATF4-serine/glycine biosynthesis pathway.
29
Styawan, Anita Agustina, Aristhasari Putri, and Refida Ramadhani Nur Cholifa. "Analisis Kadar Tanin Dari Kelopak Bunga Rosella Merah (Hibiscus Sabdariffa, L.) Secara Permanganometri." Urecol Journal. Part D: Applied Sciences 1, no. 1 (April 20, 2021): 1–8. http://dx.doi.org/10.53017/ujas.31.
Full textAbstract:
Rosella merah (Hibiscus sabdariffa L.) adalah tanaman yang dapat digunakan masyarakat dalam pengobatan tradisional. Kelopak bunga rosella mengandung protein, lemak, mineral, alkaloid, polifenol, flavonoid, dan tanin. Rosella merah berkhasiat mencegah vertigo, antihipertensi, antidiabetes, antikanker, dan memiliki antioksidan. Tanin diketahui sebagai salah satu bahan aktif yang terkandung dalam kelopak bunga rosella merah. Tanin merupakan senyawa polifenol yang mengandung protein. Penelitian ini bertujuan untuk mengetahui kadar tanin dalam ekstrak kelopak bunga rosella merah dengan menggunakan titrasi permanganometri. Metode penelitian yang digunakan adalah observasional. Penelitian ini menggunakan sampel kelopak bunga rosella merah (Hibiscus sabdariffa L.). Sampel diuji secara kualitatif menggunakan FeCl3 1%. Dianalisa kuantitatif menggunakan titrasi permanganometri. Hasil penelitian menunjukkan bahwa secara kualitatif sampel positif mengandung tanin yang ditandai dengan perubahan warna menjadi biru gelap. Secara kuantitatif sampel dititrasi dengan KMnO4, kadar tanin pada kelopak bunga rosella merah (Hibiscus sabdariffa L.) sebesar 13,73 % b/b.
30
Andrade, Luciana Paes de, Tallyta Ananda da Silva Maeda, Monique Saad Adams, César Augusto Rios de Araújo, Matheus Budib Poleto Freitas Moro, Isadora dos Santos Arantes, Juliana Petinari Umbelino, and Fernando de Lima Machado. "Hibiscus Tea and its Therapeutic Potential in Weight Reduction: Integrative Review." Journal of Health Sciences 25, no. 1 (June 14, 2023): 43–49. http://dx.doi.org/10.17921/2447-8938.2023v25n1p43-49.
Full textAbstract:
AbstractThe calyx of the Hibiscus plant are used in the form of an infusion in popular medicine with the purpose of contributing to the weight loss of its users. Therefore, the objective of this work was to verify in the literature the therapeutic potential of Hibiscus sabdariffa tea for weight loss. This is an integrative review done in the following databases: Scopus, PubMed, Science Direct, Web of Science. The final sample consisted of 6 articles. Half of the selected articles had the clear objective of evaluating weight loss, the others evaluated anti-metabolic and anti-stress properties, obesity-related adipogenesis and control of lipid indicators. In the selected studies, the most used part of the plant was the calyx, being fresh and dry. Factors such as the concentration and form of supply of the Hibiscus sabdariffa extract seem to be points to be taken into account in experiments that have food intake as an influence on the other variables. The studies brought evidence that Hibiscus sabdariffa extracts contribute to weight loss and to the suppression of weight gain in human and animal groups with metabolic disorders, without change for the healthy human/animal group. However, studies on the long-term maintenance of weight loss, once achieved, the efficacy and safety of its use, are still insufficient according to the collected evidence. Keywords: Weight Loss. Hibiscus. Tea. ResumoOs cálices da planta Hibiscus são utilizados na forma de infusão na medicina popular com o propósito de contribuir na perda ponderal de seus usuários. Diante disto, o trabalho teve como objetivo verificar na literatura o potencial terapêutico do chá de Hibiscus sabdariffa para a perda ponderal. Trata-se de uma revisão integrativa realizada nas bases: Scopus, PubMed, Science Direct, Web of Science. A amostra final foi formada por 6 artigos. Metade dos artigos selecionados tinham como objetivo claro avaliar a perda de peso, os demais avaliavam as propriedades antimetabólicas e antiestresse, adipogênese relacionada à obesidade e controle dos indicadores lipídicos. Nos estudos selecionados, a parte da planta mais utilizada foi o cálice, sendo eles frescos e secos. Fatores como a concentração e a forma de fornecimento do extrato do Hibiscus sabdariffa parecem ser pontos a serem levados em consideração em experimentos que tenham a ingestão alimentar como influência sobre as demais variáveis. Os estudos trouxeram evidencias de que os extratos de Hibiscus sabdariffa contribuem para a perda de peso e para a supressão do ganho de peso em grupos humanos e animais com disfunções metabólicas, sem alteração para o grupo de humanos/animais saudáveis. No entanto, estudos sobre a manutenção a longo prazo da perda de peso, uma vez alcançada, a eficácia e segurança de seu uso, ainda são insuficientes de acordo com as evidências coletadas. Palavras-chave: Redução de Peso. Hibiscus. Chá.
31
Venkatesan, Keerthika, Santhosh Venkatesan, and N. Manivannan. "Antibacterial Activity of Hibiscus sabdariffa (Rosella) Using Methanolic Extract." Journal of Pharmacy and Bioallied Sciences 16, Suppl 2 (April 2024): S1191—S1194. http://dx.doi.org/10.4103/jpbs.jpbs_527_23.
Full textAbstract:
ABSTRACT Hibiscus sabdariffa L. (Rosella) has a long history of use in food preparation, herbal remedies, hot and cold beverages, food industry flavoring, and herbal drinks. More than 300 species of Hibiscus are grown all over the world. It is an annual herbaceous shrub belonging to the family Malvacea. However, limited is known about the antimicrobial properties of H. sabdariffa; the purpose of this study was to investigate the antimicrobial activity of H. sabdariffa (Rosella) extract against a range of pathogens, including Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans. The results of the study showed that H. sabdariffa (Rosella) extract had a significant antimicrobial effect, against S. aureus and E. coli. Further the minimum inhibitory concentration (MIC) shows 128 μg/mL concentration followed by E. coli 256 μg/mL. The biocompatibility of crude metabolites shows highly compatible with Red blood cells (RBC’s). This finding suggests that the crude metabolites of H. sabdariffa (Rosella) could be the source to control the human pathogens.
32
Ukoha, U. U., S. I. Mbagwu, G. U. Ndukwe, and C. Obiagboso. "Histological and Biochemical Evaluation of the Kidney following Chronic Consumption of Hibiscus sabdariffa." Advances in Biology 2015 (November 17, 2015): 1–5. http://dx.doi.org/10.1155/2015/486510.
Full textAbstract:
Hibiscus sabdariffa L. has been used traditionally as herbal medicine and has been documented to have a broad range of therapeutic effects. The present study aimed to investigate the effects of chronic administration of aqueous extract of flowers of Hibiscus sabdariffa on the histology of the kidney and some biochemical indices of renal function in male Wistar rats. Twenty (20) Wistar rats were randomly divided into four (4) groups of five rats each. The extract was administered orally in doses 200, 500, and 800 mg/kg body weight for 21 days. The kidney was harvested and processed histologically and blood samples were taken for biochemical assays. The histological results showed dose dependent pathological states and the biochemical analysis revealed a dose dependant variation in renal indices. These results suggest that chronic administration of aqueous extract of Hibiscus sabdariffa may be toxic to the kidney.
33
Hasan, Akhmad Endang Zainal, Agus Setiyono, and Miko Afrian. "Hepatoprotective Activity of Propolis Trigona spp., Hibiscus sabdariffa, and Myrmeleon sp. in Rats Induced by Paracetamol." Current Biochemistry 9, no. 1 (June 10, 2022): 38–50. http://dx.doi.org/10.29244/cb.9.1.4.
Full textAbstract:
Negative effects on health will occur in excessive use of paracetamol. The main objective of this study was to determine the hepatoprotective activity of Propolis Trigona spp., Hibiscus sabdariffa, and Myrmeleon sp. in rats induced by paracetamol. The study was conducted on 36 Sprague Dawley rats with 6 rats in each group. Group 1 (normal control), group 2 (positive control, temulawak 42.86 mg/kg BW), group 3 (negative control), group 4 (infusion of Myrmeleon 10 mg/kg BW), group 5 (propolis extract 0.02 ml/kg BW), and group 6 (Hibiscus sabdariffa infusion 0.02 ml/kg BW). Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) concentrations were determined spectrophotometrically and microscopically for liver histopathology. The results showed that during three weeks of treatment with Propolis Trigona spp., Hibiscus sabdariffa, and Myrmeleon sp. in rats, this treatment could decrease ALT and AST activity as the positive control. The ALT activity values of the three materials were 69.26, 51.00, 51.00, 43.67, U/I with AST values of 110.29, 97.33, 91.00, 91.33 U/I. Based on Duncan's test, there were significant differences between all treatments with negative and positive control groups. Likewise, with the histopathological scoring results, the negative control was found to be significantly different from all treatments. Therefore, treatment with propolis Trigona spp., Hibiscus sabdariffa, and Myrmeleon sp. may have hepatoprotective benefit.
34
Hanan Hashem Abdul Razak and Musa Amen Hassan. "Effect of Pimpinella anisum and Hibiscus sabdariffa to the diets of Coturnix Japonica in the productivity." Journal of Wasit for Science and Medicine 8, no. 3 (December 25, 2022): 31–40. http://dx.doi.org/10.31185/jwsm.288.
Full textAbstract:
This experiment was conducted in agricultural research and testing of the Agriculture college / Al_ Muthanna University station for the period from 13/11/2014 to 18/12/2014 for the impact statement Add Pimpinella anisum and Hibiscus sabdariffa to a diet Japanese quail in the productivity, and use the 240 Japanese quail chicks of age one day at a rate of weight (20 chick / repeater) (9) g and birds randomly distributed on four transactions by three replicates per treatment, and the experience come transactions: (T1) diet control without adding to the feed (T2) added 0.5% Pimpinella anisum to feed (T3) added 0.5% Hibiscus sabdariffa to feed (T4) was added to the mixture consisting of 0.25% of Pimpinella anisum 0.25% of Hibiscus sabdariffa to feed. Results indicated the presence of significant differences at the level of 0.05% in each of the attributes of the living body weight, weight gain, feed consumption and the coefficient of feed conversion, it outperformed morally (p≤0.05) the treatment of the mixture (T4) followed by factors T2 and T3, respectively, when compared with the control treatment (T1), while the differences between the two treatments did not show T2 and T3. Based on that study it recommends using a mixture consisting of (0.25% of Pimpinella anisum 0.25% of Hibiscus sabdariffa) and these ratios at the same conditions to achieve the best productive performance of these birds.
35
Suhaili, Narisya Idayu Mohd, and Nurhuda Manshoor. "Ethnomedicine, phytochemistry, and bioactivities of Hibiscus sabdariffa L. (Malvaceae)." Journal of Herbmed Pharmacology 11, no. 4 (September 19, 2022): 451–60. http://dx.doi.org/10.34172/jhp.2022.52.
Full textAbstract:
Hibiscus sabdariffa L., belonging to the Malvaceae family, has been long used as herbal medicine, food, beverage, flavouring, and colouring agents. This study aims to review and document the evidence regarding the potential use of H. sabdariffa as ethnomedicine in some countries and its bioactive constituents and therapeutic properties. The electronic databases were used to search for the relevant information to the aims of this review up to March 2022. The high usage of H. sabdariffa as traditional medicine is due to its easy accessibility and low price. The plant is often used to treat intestinal problems, stomach disorders, and blood or liver toxicities. The plant contains phenolic compounds, including anthocyanins, flavonoids, and phenolic acids. The in vivo, in vitro, and clinical studies provide evidence that H. sabdariffa possesses therapeutic effects such as antihypertensive, antihyperlipidemic, antioxidants, antimicrobial, and antitumor activities. The studies provided scientific evidence for the statement of H. sabdariffa and its bioactive constituents in treating various diseases.
36
Hasni, K., A. Nabi, M. Varman, and Z. Ilham. "Preparation of Biodiesel from Hibiscus sabdariffa Seeds Oil using Calcium Oxide Catalyst from Waste Egg Shells." Journal of the Society of Automotive Engineers Malaysia 2, no. 2 (April 28, 2021): 177–83. http://dx.doi.org/10.56381/jsaem.v2i2.83.
Full textAbstract:
The aim of this study is to optimize the transesterification process for conversion of Hibiscus sabdariffa seed oils (HSO) into biodiesel. Conversion of HSO into biodiesel were obtained at optimum parameters of methanol to oil ratio 6:1, temperature 67.5oC, 1% calcium oxide (CaO) catalyst derived from waste egg shells and agitation speed of 750 rpm. The yield achieved was 95.01%. The results showed that all of the fuel properties such as kinematic viscosity 4.55 mm2/s acid value 0.027 mg KOH/g, cloud point 3oC, pour point 1oC, flash point 161oC, cetane index 49 min and density 856 kg/m3 of the Hibiscus sabdariffa methyl esters (HSME), are in compliance within the range of ASTM D6751 and EN 14214 standard specifications except for oxidation stability which was at 3.48 hours. The results suggested that Hibiscus sabdariffa seed oil could be a potential feedstock for biodiesel.
37
Narouei, Asyeh, Mahdi Pirnia, Shirahmad Sarani, and Javad Abkhoo. "Effect of Hibiscus Sabdariffa Extract on Growth of Fusarium graminearum and the Expression of TRI4 and FG08079 Genes of the Fungus." International Journal of Basic Science in Medicine 6, no. 3 (September 30, 2021): 86–90. http://dx.doi.org/10.34172/ijbsm.2021.16.
Full textAbstract:
Introduction: Fusarium graminearum produces trichothecenes, such as deoxynivalenol and secondary metabolite butenolide, which cause profound health problems in humans. In this research, the effect of acetone extract of Hibiscus sabdariffa is evaluated on growth of F. graminearum and expression of TRI4 and FG08079 genes, which are involved in deoxynivalenol and butenolide biosynthetic pathways, respectively. Methods: Minimal inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) were determined. The expression of TRI4 and FG08079 genes were evaluated by teal-time PCR technique.Results: The MIC and MFC for acetone extract of Hibiscus sabdariffa against F. graminearum were 200 mg/mL and 400 mg/mL, respectively. Expression of TRI4 and FG08079 genes were significantly decreased by the acetone extract of red tea. Conclusion: The results showed that acetone extract of Hibiscus sabdariffa has inhibitory and fungicidal effects on F. graminearum and is effective in reducing the expression of TRI4 and FG08079 genes, which play important roles in deoxynivalenol and butenolide production.
38
Sedillo-Torres, Ixchell Y., Álvaro O. Hernández-Rangel, Yolanda Gómez-y-Gómez, Daniel Cortés-Avalos, Blanca Estela García-Pérez, Juan C. Villalobos-Rocha, César H. Hernández-Rodríguez, et al. "Hibiscus Acid from Hibiscus sabdariffa L. Inhibits Flagellar Motility and Cell Invasion in Salmonella enterica." Molecules 27, no. 3 (January 20, 2022): 655. http://dx.doi.org/10.3390/molecules27030655.
Full textAbstract:
Extracts of Hibiscus sabdariffa L. (commonly called Rosselle or “Jamaica flower” in Mexico) have been shown to have antibiotic and antivirulence properties in several bacteria. Here, an organic extract of H. sabdariffa L. is shown to inhibit motility in Salmonella enterica serovars Typhi and Typhimurium. The compound responsible for this effect was purified and found to be the hibiscus acid. When tested, this compound also inhibited motility and reduced the secretion of both flagellin and type III secretion effectors. Purified hibiscus acid was not toxic in tissue-cultured eukaryotic cells, and it was able to reduce the invasion of Salmonella Typhimurium in epithelial cells. Initial steps to understand its mode of action showed it might affect membrane proton balance.
39
Banjo, Temitope T., Omowunmi R. Oluwole, and Victoria I. Nzei. "Preservation of Lycopersicum esculentum (Tomatoes) with Extracts of Annona muricata (Soursop) and Hibiscus sabdariffa (Roselle Plant)." Tropical Life Sciences Research 33, no. 1 (March 31, 2022): 1–22. http://dx.doi.org/10.21315/tlsr2022.33.1.1.
Full textAbstract:
Tomatoes are very important vegetable crops in the world but with a perishable nature. Due to its highly perishable nature, various methods have been investigated to increase its shelf life while still preserving its qualities. Therefore, this study investigated the potentials of the parts of Annona muricata and the calyces of Hibiscus sabdariffa in the preservation of tomato fruits. Tomato fruits were washed and treated with powdered, aqueous and ethanolic extracts of the leaves, seeds, bark of the Annona muricata and calyces of Hibiscus sabdariffa at different concentrations of 3%, 5%, 6%, 9% and 12% w/v. The tomato fruits were placed in well-aerated baskets for a period of 35 days during which organoleptic and microbial analysis were carried out. The different treatments with Annona muricata and Hibiscus sabdariffa had significant effects on the preservation of the tomato fruits at p < 0.05. The leaves of Annona muricata proved most effective preserving up to 50% of the tomatoes after the monitoring period. Moreover, 6% (w/v) of the aqueous extract of the leaves of Annona muricata resulted in a preservation rate of 75% of the tomato fruits. The spoilage microorganisms isolated from the tomato fruits are Candida krusei, Candida sp., Bacillus subtilis and Bacillus sp. The results of this research carried out shows that the extracts of Annona muricata and Hibiscus sabdariffa had significant preservative activities on the tomato fruits (p < 0.05), thus minimising wastes and economic loss to the farmers and country in general.
40
Gonçalves da Silva, Adriane, and Gisela Vergilio Ranolfi. "OS EFEITOS DO HIBISCUS SABDARIFFA E SUAS CARACTERÍSTICAS NUTRICIONAIS." RECIMA21 - Revista Científica Multidisciplinar - ISSN 2675-6218 3, no. 12 (December 14, 2022): e3122436. http://dx.doi.org/10.47820/recima21.v3i12.2436.
Full textAbstract:
O chá de hibiscus sabdariffa é utilizado como planta medicinal e alimento funcional em diversos países, visto que possui propriedades antioxidantes e tem um valor representativo de antocianinas, vitamina C, grande quantidade de fito compostos e polifenóis, atividade citotóxica, antimutagênica e antimetástica. Este estudo teve como objetivo realizar uma revisão da literatura sobre os benefícios nutricionais e fitoterápico do hibiscus sabdariffa e seus efeitos na saúde humana. Foi realizada uma revisão bibliográfica, de método dedutivo, de abordagem qualitativa e descritiva, através de pesquisa de artigos científicos realizadas nas plataformas Scielo e Google acadêmico, com corte temporal de 2012 a 2022, para verificar os efeitos e características nutricionais do hibiscus sabdariffa. Pesquisas concluem que o chá de hibiscus sabdariffa é capaz de reduzir a adipogênese, ou seja, ajuda a evitar o acúmulo de gordura, tem efeito diurético, por isso é um aliado para evitar a retenção de líquidos, contribui para a diminuição do colesterol ruim, e aumento do colesterol bom, ajuda a baixar a pressão arterial, e possui boas quantidades de vitaminas B1 e B2, que é bom para o cérebro, sendo promissor para a utilização como fitoterápico, além de possuir vários benefícios nutricionais, atuando como importante auxiliador no controle de diversas patologias como obesidade, colesterol alto, hipertensão, entre outras. Porém, há necessidade de intensificar ainda mais os estudos para real comprovação de efeitos terapêuticos, além de definir as melhores doses a serem utilizadas de acordo com cada patologia.
41
Marcos Silva Valentim, Sebastião, Petterson Baptista da Luz, Elaidy Laura Oliveira Cardoso, Gabriel Moretto, Antônio Carlos Silva Moreira, Anna Júlia Cardoso Amaral, and Bruna Samy de Oliveira Miranda. "Naturalização de Hibiscus sabdariffa L. em região de transição dos Biomas Pantanal, Floresta Amazônica e Cerrado." Journal of Biotechnology and Biodiversity 11, no. 2 (July 1, 2023): 54–59. http://dx.doi.org/10.20873/jbb.uft.cemaf.v11n2.valentim.
Full textAbstract:
A espécie Hibiscus sabdariffa L. é originária do continente Africano. Trata-se de uma espécie arbustiva que pode chegar até 2 m de altura, onde devido aos seus vários usos, se espalhou para diversas regiões no mundo, onde atua de forma exótica, podendo se tornar uma espécie naturalizada. Na cidade de Cáceres- MT existe uma pequena população da espécie em uma área antropizada, no qual, de acordo com os moradores locais, as plantas já estão presentes no local há vários anos, mesmo havendo diversas vezes a ocorrência de perturbações na área. Sendo assim, o objetivo do trabalho foi analisar a possível naturalização de Hibiscus sabdariffa em uma localidade antropizada presente na região de transição dos Biomas Pantanal, Floresta Amazônica e Cerrado na cidade de Cáceres- MT. Para a execução do trabalho realizou-se uma pesquisa qualitativa, de natureza exploratória e descritiva, pesquisa bibliográfica sobre Hibiscus sabdariffa e sobre naturalização de plantas. Os dados sobre as perturbações foram coletados através de observações ao decorrer dos anos e por entrevistas com pequenos produtores que residem na comunidade. A pequena população da espécie Hibiscus sabdariffa encontrada na comunidade rural em Cáceres- MT possui as características de naturalização, podendo assim, ser considerada uma espécie naturalizada no local e participante da biodiversidade local. Além disso, o fato de a espécie estar presente na área há vários anos mesmo com as perturbações recorrentes, reforça a ocorrência de naturalização.
42
Portillo-Torres, Lizbeth Anahí, Aurea Bernardino-Nicanor, Carlos Alberto Gómez-Aldapa, Simplicio González-Montiel, Esmeralda Rangel-Vargas, José Roberto Villagómez-Ibarra, Leopoldo González-Cruz, Humberto Cortés-López, and Javier Castro-Rosas. "Hibiscus Acid and Chromatographic Fractions from Hibiscus Sabdariffa Calyces: Antimicrobial Activity against Multidrug-Resistant Pathogenic Bacteria." Antibiotics 8, no. 4 (November 11, 2019): 218. http://dx.doi.org/10.3390/antibiotics8040218.
Full textAbstract:
The anti-microbial properties of acetone extracts from Hibiscus sabdariffa calyces, fractions isolated by silica gel chromatography and hibiscus acid purified from some of these fractions and additionally identified by nuclear magnetic resonance spectroscopy, mid-infrared spectroscopy and X-ray diffraction, were studied against both multidrug-resistant Salmonella strains and pathogenic Escherichia coli bacteria. Gel diffusion was used to determine the anti-microbial effects. The mode of action of hibiscus acid was determined by crystal violet assay. Hibiscus acid and 17 of the 25 chromatographic fractions obtained, displayed an anti-microbial effect against all bacterial strains tested. Hibiscus acid showed a greater anti-microbial effect than the acetone extract against most of the bacteria strains, while chromatographic fractions IX–XIV exerted the greatest anti-microbial effect against all bacteria. The minimum inhibitory concentration of the acetone extract was 7 mg/mL, and the minimum bactericidal concentration was 10 mg/mL, while the corresponding values for hibiscus acid were 4–7 and 7 mg/mL, respectively. The results of the crystal violet assay indicate that hibiscus acid alters membrane permeability. Hibiscus acid is a potential alternative to control multidrug-resistant bacteria. Due to its ready availability and easy extraction from H. sabdariffa, hibiscus acid is potentially useful in the food industries.
43
Phuong, Vu Thi Bach, Cao Minh Dai, Pham Thi Anh Hong, and Quach Ngo Diem Phuong. "Biological activity and hairy roots induction of Hibiscus sabdariffa L." Science and Technology Development Journal - Natural Sciences 2, no. 6 (September 17, 2019): 66–74. http://dx.doi.org/10.32508/stdjns.v2i6.845.
Full textAbstract:
Hibiscus sabdariffa L. has been used traditionally in many countries of the world as food, especially as a flavouring agent in food industry. H. Sabdariffa is used for treating heart, nerve, liver disease, high blood pressure, arteriosclerosis, sore throat, cough, hypoglycaemia, laxative, diuretic, kidney stone, scurvy... The aims of this study are evaluation of bioactivities of H. Sabdariffa and the production of transformed hairy root of H. Sabdariffa for pharmaceutical production. In this study, Yen and Duh method showed the reducing power of ethanol the root extract and leaf extract are higher than that of stem. The root extract showed the α-glucosidase inhibitory activity with IC50 at 0.2 mg/mL is higher than those of stem and leaf. These results shows that root has higher bioactivites than stem and leaf. In this study, hairy roots of H. Sabdariffa were successfully induced via Agrobacterium rhizogenes ATCC 15834 in the plant cells. The frequency of hairy root and number of hairy root induction from the wounded sites of leaves are the highest (100% and 12.89 roots). The stable introduction of rolB and rolC genes of A. rhizogenes ATCC 15834 into H. Sabdariffa plants was confirmed by PCR analysis. Besides, the absence of virG gene confirmed hairy roots as bacteria-free. Subsequently, these results demonstrated that H. Sabdariffa, particularly the roots, has great potential as pharmacological values and hairy root production can be used as pharmaceutical sources.
44
Isin Ozkan, Tugba Gonca, Kwame Sarpong Appiah, Emine Akalin, and Yoshiharu Fujii. "Plant Growth Inhibitory Activity of Hibiscus sabdariffa Calyx and the Phytotoxicity of Hydroxycitric Acid Lactone." Agronomy 13, no. 7 (June 28, 2023): 1746. http://dx.doi.org/10.3390/agronomy13071746.
Full textAbstract:
Weeds pose major constraints in crop production. The use of allelochemicals and allelopathic species can provide an effective alternative for sustainable weed management. In a previous study that evaluated the allelopathic activity of wild and cultivated plants in Turkey, Hibiscus sabdariffa demonstrated the strongest inhibitory potential. This study aimed to estimate the phytotoxic influence of the H. sabdariffa water crude extracts on Lactuca sativa L. in a bioassay experiment. High-performance liquid chromatography (HPLC) analysis was used to identify two major compounds, hydroxycitric acid lactone and hydroxy citric acid, and their plant growth inhibitory activities were evaluated by bioassays. Hydroxycitric acid lactone had a stronger growth inhibitory activity on L. sativa L. and was estimated as a major allelochemical in H. sabdariffa calyx. The high concentration (16.7% of the dry weight of the calyx) and strong inhibitory effect (EC50, 73.7 ppm) of the hydroxycitric acid lactone could demonstrate the growth inhibitory activity of the H. sabdariffa calyx extract. This study showed that hydroxycitric acid lactone, a major compound in the calyx of Hibiscus sabdariffa, is a plant growth inhibitor.
45
Sharma, Anupam. "Antianxiety Activity Evaluation of Hibiscus Sabdariffa Linn. Calyces." Journal of Pharmaceutical Technology, Research and Management 10, no. 2 (November 10, 2022): 119–22. http://dx.doi.org/10.15415/jptrm.2022.102001.
Full textAbstract:
Background: Anxiety is one of the most commonly prevailing psychiatric and behavioural disorders. Evolutionarily, it is regarded as a healthy emotion or behavioural repertoire, which is the outcome of a stressful situation, thereby, helping an individual to cope with a possible risk or a novel situation by increasing awareness and responsiveness. Benzodiazepines, barbiturates, SRIs etc., are used as first line drugs for the management of anxiety, but due to myriad of adverse effects associated with these conventional drugs, inclination of patients towards complementary and alternative medicines (CAMs) has tremendously risen. CAM interventions mainly include herbal remedies.Different parts of Hibiscus sabdariffa have been used traditionally for treating several ailments including mental disorders. Purpose: Keeping in mind the traditional use of H. sabdariffacalyces,the present study was designed to evaluate their antianxiety potential. Methods: Petroleum ether (60-80°C), chloroform, ethanol, and water extracts were prepared using successive Soxhlet extraction and evaluated using elevated plus-maze model. Results: Among all the extracts, ethanol extract showed significant antianxiety activity at a dose of 400 mg/kg. Conclusion: Thus, the study establishes antianxiety activity of H. sabdariffa calyces and also validates their traditional use.
46
Mulay, Sudhir S. "Pharmacological account of Hibiscus Sabdariffa Linn." American Journal of Pharmacy And Health Research 6, no. 7 (July 20, 2018): 69–78. http://dx.doi.org/10.46624/ajphr.2018.v6.i7.006.
Full text
47
Wulandari, Yustina Wuri, Indrias Tri Purwanti, and Akhmad Mustofa. "SIFAT SENSORIS GEPLAK ROSELA (Hibiscus sabdariffa)." Jurnal Teknologi Hasil Pertanian 2, no. 2 (August 31, 2009): 73. http://dx.doi.org/10.20961/jthp.v0i0.12874.
Full textAbstract:
<p>Rosella (Hibiscus sabdariffa) adalah salah satu tanaman hortikultura. Kualitas khusus rosella dari Jelok adalah merupakan produk organic. Diversifikasi penanganan rosella diperlukan pada pascapanen. Geplak merupakan salah satu makanan tradisional dari Bantul, Yogyakarta. Rosella memiliki efek potensial pada kesehatan. Oleh karena itu, tujuan penelitian ini adalah untuk menemukan formula geplak rosella dan untuk menganalisis sifat sensoris geplak rosella. <br />Kata kunci : geplak, rosella, sensoris</p>
48
Ruslan, Siti Aminah, Noer Hartini Dolhaji, Asmah Awal, Mohamad Osman, Maheran Aziz, and Mohd Roslan Md Noor. "Protoplast Isolation from Hibiscus sabdariffa L." Advanced Science Letters 23, no. 2 (February 1, 2017): 1333–36. http://dx.doi.org/10.1166/asl.2017.8362.
Full text
49
Mikhania Cristiningtyas Eryani, Siti Nur Azizah,. "POTENSI STREPTOMYCES ENDOFIT RIMPANG KENCUR DAN DAUN SIRIH MERAH SEBAGAI ANTITUBERKULOSIS PADA MYCOBACTERIUM TUBERCULOSIS GALUR SENSITIF." JURNAL ILMIAH FARMASI AKADEMI FARMASI JEMBER 3, no. 1 (January 28, 2021): 14–22. http://dx.doi.org/10.53864/jifakfar.v3i1.38.
Full textAbstract:
The objective of this research was to obtain Endophitic Streptomyces from some medical plants which have antituberculosis effect and also to test its antitubercullosis activity againts sensitive stain of Mycobacterium tuberculosis. Medicinal plants used in this study were Kaemferia galanga, Hibiscus sabdariffa and Piper cronatum. Streptomyces was isolated using two different media namely Humic Acid Vitamin (HV) agar and HV with plant extract, and purified on Yeast Malt Agar (YMA) medium. Morphological characterization of Streptomyces obtained was observed including aerial mycelium and substrate mycelium, pigmentation, and colony surface. A total of 5 endophitic Streptomyces genus were obtained from medicinal plant. Isolates K.J3A, K.J3B, K.J4 and K.J11 from Kaemferia galanga radix, S.MJ1 from Piper cronatum folium. Streptomyces was not found from Hibiscus sabdariffa calyx. Each isolate had variety of characteristics which could be seen in aerial mass color, substrate mass color, and pigmentation. Antitubercullosis activity showed that total of 5 endophitic Streptomyces were not capable to inhibit the growth sensitive stain of M. tubercullosis.Keywods: Antituberculosis, endophitic actinomycetes, Kaemferia galanga, Hibiscus sabdariffa
50
Lima, Michele Vieira da Silva, Clarice de Morais Guedes, Maria Carolina de Abreu, and Ana Paula Peron. "Análise da citotoxicidade e genotoxicidade de Hibiscus sabdariffa L. in natura e industrializado, e comparação da toxicidade entre as formas analisadas da planta." Multitemas 23, no. 55 (October 16, 2018): 121. http://dx.doi.org/10.20435/multi.v23i55.1838.
Full textAbstract:
A flores de Hibiscus sabdariffa, o popular hibisco, são amplamente utilizadas para a prevenção e tratamento de diversas enfermidades. Comercialmente, tais flores são encontradas na forma in natura, onde são recomendadas para uso na forma de chá; e na forma industrializada, encontrada como produto farmacêutico acrescidos de aditivos excipientes. Objetivou-se na presente pesquisa avaliar em células meristemáticas de raízes de Allium cepa, nos tempos de exposição 24 e 48 horas, o potencial citotóxico e genotóxico de flores de hibisco em chá, nas concentrações 0,10; 0,20 e 0,40 mg/ml; e industrializadas, provenientes de dois diferentes laboratórios farmacêuticos, denominados neste estudo de A e B, nas concentrações 0,15; 0,30 e 0,60 mg/mL. A partir dos resultados obtidos, verificou-se que as três concentrações de chá de hibisco não foram citotóxicas e nem genotóxicas as células meristemáticas de raízes de A. cepa. No entanto, as três concentrações de hibisco referentes ao produto LF B, bem como as três concentrações do produto LF A, foram citotóxicas e genotóxicas, respectivamente, aos meristemas de raízes. Portanto, nas condições de estudos estabelecidas, verificou-se diferença de toxicidade celular entre os hibiscos in natura e os hibiscos industrializados.