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Relevant bibliographies by topics / Flavonoids content

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Academic literature on the topic 'Flavonoids content'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Flavonoids content"

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P, Darmayuda I. P., Suardana I. G, and Bawa Putra A. A. "ANALYSIS OF TOTAL FLAVONOID LEVELS OF ETHANOL EXTRACT (Cinnamon (Cinnamomum burmanii Blume) LEAVES WITH UV-VIS SPECTROPHOTOMETRY METHOD." Jurnal Ilmu Pendidikan Indonesia 9, no. 3 (2021): 115–20. http://dx.doi.org/10.31957/jipi.v9i3.1798.

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Cinnamon plants (Cinnamomum burmani Blume), including plants that have medicinal properties for diabetes mellitus because they contain flavonoid compounds. This study aimed to determine the total flavonoids content of the ethanol extract of cinnamon leaf ethanol extract using UV-Vis spectrophotometry method. The ethanol extract of Cinnamon leaf was obtained by maceration using ethanol as a solvent.The qualitative analysis used FeCl3by forming yellowish green complex. The determination of total flavonoids content is conducted basedon AlCl3method with total flavonoidse xpressed in QE (Quercetin

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Nurlinda, Nurlinda, Virsa Handayani, and Faradiba Abdul Rasyid. "Spectrophotometric Determination of Total Flavonoid Content in Biancaea Sappan (Caesalpinia sappan L.) Leaves." Jurnal Fitofarmaka Indonesia 8, no. 3 (2021): 1–4. http://dx.doi.org/10.33096/jffi.v8i3.712.

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AbstractBiancaea sappan (BS) is traditionally used to treat anticonvulsants, anti-inflammatory, antiproliferative, anticoagulant, antiviral, immunostimulant, antioxidant, and antimicrobial treatments. Flavonoids are found in Secang; flavonoids are secondary metabolites that have antioxidant activity. This study aims to identify the flavonoids using TLC and determination of flavonoids content in BS leaves. Initially, The methanol extract of BS was obtained by maceration with ethanol. The qualitative analysis of flavonoid was using TLC and visualization by sprayed with AlCl3. The determination o

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Nur, Syamsu, Fitriyanti Jumaetri Sami, Akbar Awaluddin, and Mutiara Indah Ayu Afsari. "Korelasi Antara Kadar Total Flavonoid dan Fenolik dari Ekstrak dan Fraksi Daun Jati Putih (Gmelina Arborea Roxb.) Terhadap Aktivitas Antioksidan." Jurnal Farmasi Galenika (Galenika Journal of Pharmacy) (e-Journal) 5, no. 1 (2019): 33–42. http://dx.doi.org/10.22487/j24428744.2019.v5.i1.12034.

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This experiment aims to determine the correlation of total phenolic and flavonoid content of jati putih leaves fraction (Gmelina arborea Roxb.) towards Antioxidant activity . Sample was extracted by maceration method using ethanol 70% to obtain the ethanol extract (EE), followed by liquid-liquid extraction method to obtain fraction of ethyl acetate (EA) and n-Hexane (EH). The phytochemical screening and determination of total phenolic and flavonoid content were done by colorimetric method. Antioxidant activity were done by DPPH, FRAP and ABTS methods. Phytochemical screening showed positive re

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Najid, Amirah, Berna Elya, and Arikadia Noviani. "ARGINASE INHIBITORY ACTIVITY OF STEM BARK EXTRACTS OF CAESALPINIA TORTUOSA ROXB." International Journal of Applied Pharmaceutics 10, no. 1 (2018): 130. http://dx.doi.org/10.22159/ijap.2018.v10s1.27.

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Objective: This study aimed to evaluate the arginase inhibitory activity of Caesalpinia tortuosa Roxb. stem bark extracts.Methods: C. tortuosa Roxb. stem bark extracts were obtained through reflux extraction using n-hexane, ethyl acetate, and methanol and theirinhibitory activity against arginase was measured using a microplate reader at 430 nm. Active extracts were subjected to phytochemical analysisand based on the qualitative phytochemical analysis, quantitative data regarding flavonoid and phenolic contents were obtained. The total flavonoidcontent of active extracts was determined using A

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Курдюков (Kurdyukov), Евгений (Evgeniy) Евгеньевич (Evgenievich), Анна (Anna) Викторовна (Viktorovna) Кузнецова (Kuznetsova), Елена (Elena) Федоровна (Fedorovna) Семенова (Semenova), and Инесса (Inessa) Яковлевна (Yakovlevna) Моисеева (Moiseevа). "APPROACH TO STEVIA STANDARDIZATION AS PERSPECTIVE MEDICINAL PLANT: EVALUATION OF STEVIA LEAVES FLAVONOID CONTENTS." chemistry of plant raw material, no. 1 (March 6, 2019): 217–24. http://dx.doi.org/10.14258/jcprm.2019014067.

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Stevia rebaudiana bertolli traditionally used as a sweetener has many pharmacological activities. The objects of the study were stevia leaves grown in the several districts of Russia. Together with sweet glycosides flavonoids can be a marker of stevia quality. Flavonoids from dry stevia leaves were extracted with ethanol-water solutions. The results show that the flavonoid content higher in 40 and 70% ethanol extracts. UV properties of stevia extracts were investigated. Absorption maxima at 300 and shoulder at 290 nm in stevia extracts are revealed. Chemical structures of stevia flavonoids are

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Olena, Andrushchenko, and Levon Volodymyr. "The content of flavonoids in Cosmos sulphureus." Plant Introduction 89-90 (April 28, 2021): 83–88. https://doi.org/10.46341/PI2021003.

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Flavonols, anthocyanins, and chalcones were determined during the flowering phase in two genotypes of <em>Cosmos sulphureus</em> (regular species and its cultivar ‘Cosmic Orang’) grown in the М.М. Gryshko National Botanical Garden in Kyiv. Inflorescences, leaves, stems, roots, and separated ray and disc florets were dried and crushed to prepare extracts following three different techniques. In particular, with 80 % (v/v) ethanol following Andreeva & Kalinkina (2000), 3.5 % HCl following Kriventsov (1982), and 0.1 N HCl following Udovenko (1988). The abso

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Santoso, Untung, Fatimah Nursandi, and Rizka Nurfitriani. "Effect of Phenylalanine Amino Acid on Flavonoid Production by Apple Callus Culture." BIO Web of Conferences 143 (2024): 01014. http://dx.doi.org/10.1051/bioconf/202414301014.

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Apple (Malus domestica) is a fruit with many health benefits because it contains phytochemicals and flavonoids. Flavonoids are phenolic compounds with potential as antioxidants, which can neutralize free radicals that enter the human body. Flavonoid production can be done through callus culture. Adding phenylalanine amino acids to apple callus can increase the flavonoid content. The research aimed to study Phenylalanine amino acids’ effect on apple callus’s flavonoid content. The total content of flavonoids in the callus of 3 apple varieties, namely Granny Smith, Red Delicious and Manalagi, in

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Sarukhanov, A., A. Morozova, N. Vasilyeva, and D. Krylenkin. "Flavonoid’s Content Determination in Irradiated Samples via Spectrophotometric Analysis." Bulletin of Science and Practice 5, no. 10 (2019): 32–39. http://dx.doi.org/10.33619/2414-2948/47/04.

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General information about biologically active substances flavonoids is concisely presented. The need for the quantitative determination of its content in products and the influence of product processing on flavonoid’s content is justified. Methods of qualitative and quantitative determination of flavonoids content in various products, medications and raw materials were studied. Based on this study the method of quantitative determination of flavonoid’s in samples of irradiated coriander is compiled and tested. Further ways to improve and adjust the compiled method for flavonoid’s content deter

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Ke, Jin, Bin Ran, Peiyuan Sun, Yuanzhi Cheng, Qingfu Chen, and Hongyou Li. "An Evaluation of the Absolute Content of Flavonoids and the Identification of Their Relationship with the Flavonoid Biosynthesis Genes in Tartary Buckwheat Seeds." Agronomy 13, no. 12 (2023): 3006. http://dx.doi.org/10.3390/agronomy13123006.

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The aim of the present study is to evaluate the absolute content and accumulation patterns of flavonoid components; to give insight into the accumulation relationships among flavonoid components; to explore the correlation between the content of flavonoid components and the expression of flavonoid biosynthesis genes in Tartary buckwheat seeds; and to construct a biosynthetic pathway on the major flavonoid components in Tartary buckwheat seeds. In total, 61 flavonoid components were absolutely quantified in five Tartary buckwheat varieties, of which 41 existed in all varieties. The content of m

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Cheng, A., X. Chen, Q. Jin, W. Wang, J. Shi, and Y. Liu. "Comparison of phenolic content and antioxidant capacity of red and yellow onions." Czech Journal of Food Sciences 31, No. 5 (2013): 501–8. http://dx.doi.org/10.17221/566/2012-cjfs.

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The total polyphenol (TP), flavonoid, proanthocyanidin (PAC) content, and antioxidant capacity of both onion varieties (red and yellow) were compared. The content of TP, flavonoids, and PAC was determined by Folin-Ciocalteu colorimetric method, AlCl<sub>3</sub>, and by DMAC colorimetric method, respectively. The results showed that the contents of TP and flavonoids decreased from the outer to the inner layers in both onions, but there was no significant difference in PAC content. The outer layers had the highest antioxidant activity of extracts followed by a continuous decrease tow

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Dissertations / Theses on the topic "Flavonoids content"

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Símílíen, Arsène Shannon Dennis Alan. "Effect of shade, irrigation and nutrients on dry matter yield and flavonoid content of American skullcap." Auburn, Ala, 2009. http://hdl.handle.net/10415/1647.

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Holasová, Petra. "PSE extrakce rostlinného materiálu pro potravinářské účely." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-216538.

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Flavonoids were identified and quantified in samples of dry leaves of plant Stevia rebaudiana Bertoni. Content of flavonols (kaempherol, quercetin, myricetin, rutin) and flavons (apigenin, luteolin) were compared in three samples (standard leaves of Stevia rebaudiana Bertoni, Stevia rebaudiana Bertoni origin from Ukraine and from Czech republic), that were extracted by three extraction methods (PSE, ultrasonic extraction, Soxhlet extraction) with two polar solvents, methanol and ethanol, in combination with non-polar hexane. Extracts were analyzed by HPLC with detection UV-VIS. Antioxidant act

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Mbamalu, Oluchi Nneka. "Content levels, in vitro dissolution and predicted bioavailability of flavonoids from Sutherlandia frutescens leaf powder and aqueous extracts." University of the Western Cape, 2015. http://hdl.handle.net/11394/4817.

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Philosophiae Doctor - PhD<br>Various formulations of the popular South African medicinal plant, Sutherlandia frutescens,are commercially available, with no documented specifications for quality assessment. With plans already underway for a clinical trial to assess its efficacy in HIV patients, there is a need for scientifically validated tests for the quality control of products of this plant. Chemical constituents of the plant are many and varied but it is still unclear which might be the most appropriate ones to monitor for activity or to describe the quality of the plant’s products. For qua

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Roy, Sutapa. "POLYPHENOL CONTENT AND DIFFERENTIAL EXPRESSION OF FLAVONOID BIOSYNTHETIC PATHWAY GENES OF FRAGARIA SPP. WITH WHITE FRUIT." UKnowledge, 2016. http://uknowledge.uky.edu/pss_etds/72.

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Strawberries are a rich source of polyphenols which contribute to berry color and plant disease resistance, and have been shown to lower the risk of many chronic when consumed. While a considerable body of work exists on the polyphenolic composition of commercial strawberry (Fragaria x ananassa Duch.), less information is available concerning polyphenols in Fragaria vesca, or Alpine strawberry, considered a model system for the Rosaceae family of crop species. The study of natural and genetically-engineered F. vesca mutants with white fruit can provide unique insight into regulation of metabol

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Herrera-Calderon, Oscar, Jorge Arroyo-Acevedo, Juan Rojas-Armas, et al. "Phytochemical Screening, Total Phenolic Content, Antioxidant and Cytotoxic Activity of Chromolaena laevigata on Human Tumor Cell Lines." SCIENCEDOMAIN international, 2017. http://hdl.handle.net/10757/622501.

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Aims: Cancer is the first cause of death in the Peruvian population; searching alternative treatments of medicinal plants constitute a promissory field to find new anticancer drugs. The main objective in this study was to evaluate the phytochemical screening, total phenolic content, antioxidant and cytotoxic activity of ethanol extract of Chromolaena laevigata (C. laevigata) on human tumor cell lines. Study Design: The fresh leaves of C. laevigata were soaked with ethanol followed by phytochemical screening using standard methods. Place and Duration of Study: Laboratory of Applied Chemistry, F

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Martinez, Stephanie. "Pharmacokinetic and pharmacodynamic investigations of select natural products and nutraceuticals for human and veterinary health." John Wiley & Sons, Ltd, 2013. http://hdl.handle.net/1993/31166.

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Natural products are teeming with potential therapeutic agents. One group of compounds, polyphenols, from plants, exhibit anti-cancer, anti-inflammatory and anti-oxidant activities. Four polyphenolic compounds and their enantiomers were investigated in this thesis; the stilbene, 3-methoxypterostilbene, a structural analog of resveratrol, and the chiral prenylflavonoids from hops (Humulus lupulus L.); 8-prenylnaringenin, 6-prenylnaringenin and isoxanthohumol. A high performance liquid chromatography method for 3-methoxypterostilbene and enantiospecific liquid chromatography-mass spectrometry as

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Vasco, Catalina. "Phenolic compounds in Ecuadorian fruits /." Uppsala : Dept. of Food Science, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200954.pdf.

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Nellvecia, Madike Lerato. "Cytotoxic and genotoxic studies of crude extracts from the leaves, stems and roots of Tulbaghia Violacea." Thesis, Vaal University of Technology, 2017. http://hdl.handle.net/10352/364.

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M. Tech. (Biotechnology, Faculty of Applied and Computer Science), Vaal University of Technology<br>Tulbaghia violacea Harv. (wild garlic) has been used in traditional medicine in Southern Africa for the treatment of various ailments. Despite the widespread use and popularity of this medicinal plant as a herbal medicine, there is contradictory evidence regarding the safety and toxicity of the plant. The phytochemical profiling of the plant has also been neglected in research. The determination of chemical constituents present in plant material as well as the potential toxicity found in plants

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Yoshida, Letícia Costa Tomazelli. "Fotoprotetores bioativos multifuncionais contendo rutina, octil dimetil PABA e avobenzona: caracterização físico-química, funcional e eficácia clínica." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/9/9139/tde-06122017-104059/.

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A exposição crônica à radiação solar pode contribuir para o aparecimento do câncer de pele, sendo o uso de fotoprotetores um fator primordial na prevenção desses efeitos deletérios. Atualmente, substâncias bioativas tais como a rutina têm sido foco de interesse da comunidade científica graças às suas propriedades fotoprotetoras e antioxidantes, que podem promover aumento dos valores de FPS, além de conferir características multifuncionais às formulações. Achados in vitro recentes indicam que a rutina, quando incorporada em emulsões fotoprotetoras óleo em água, promove aumento da atividade anti

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Almeida, Natália Ellen Castilho de. "Reatividade das lupulonas, terpenos, flavonoides prenilados e compostos contendo grupos tióis livre frente aos radicais formados durante o envelhecimento da cerveja." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-02022015-161613/.

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A reatividade das lupulonas, terpenos, flavonoides prenilados e compostos contendo grupos tióis livre foi avaliada frente ao radical 1-hidroxietila (HER) para melhor conhecer o balanço redox da cerveja. As constantes de velocidade aparentes (kap) para a reação entre HER e os substratos supracitados foram obtidas via cinética de competição utilizando a armadilha química 4-POBN como competidor e monitorando-se o aduto radical formado por RPE. A partir dos valores obtidos de kap (108 L mol-1 s-1 para as lupulonas, 105 a 107 L mol-1 s-1 para terpenos, 109 L mol-1 s-1 para os flavonoides prenilados

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Book chapters on the topic "Flavonoids content"

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Liu, Huiyan, Haitian Fang, Jinhu Tian, Yujun Zeng, and Shuifang Mao. "Total Flavonoids and Total Phenolics Content in Different Parts of Sea Buckthorn." In Sea Buckthorn. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-9865-0_5.

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Salihović, Mirsada, Mirha Pazalja, Ajla Špago, Elma Veljović, and Selma Špirtović-Hali-lović. "The Total Phenols and Total Flavonoids Content of Petioles Sweet Cherry (Prunus Avium L.)." In IFMBE Proceedings. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-49062-0_51.

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Pupykina, Kira, Rashit Farkhutdinov, Albina Fedorova, Ekaterina Koroleva, and Pavel Akhmadiev. "The Study of the Quantitative Content of Flavonoids and Biological Activity of the Herba Thlaspi Arvense L." In Lecture Notes in Networks and Systems. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96641-6_21.

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Ranganathan, Umarani, and Steven P. C. Groot. "Seed Longevity and Deterioration." In Seed Science and Technology. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-5888-5_5.

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AbstractThe fundamental deteriorative processes that lead to loss of seed viability contrastingly vary between desiccation insensitive (orthodox) and desiccation sensitive seeds (recalcitrant). Orthodox seeds which undergo maturation drying are bestowed with protective mechanisms which guard the seeds against deterioration. They include the accumulation of antioxidants, non-reducing sugars, protective proteins such as late embryogenesis abundant proteins, heat-shock proteins, lipocalins, hormones and chemical protectants (raffinose family oligosaccharides, flavonoids, lignins, vitamin E). The

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Pacheco, Patricia, Dévora Carrión, Sandy Gavilanes, and Mónica Espadero. "In vitro Antibacterial Activity of Ethanolic and Acetonic Extracts of Curcuma longa Against Propionibacterium acnes (Cutibacterium acnes)." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_27.

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Abstract Throughout history, plants have been indispensable in the development of society due to their high content of bioactive substances, which are used in different industries such as food, pharmaceutical, and cosmetics. Curcuma longa is a perennial species that belongs to the Zingiberaceae family, which is used for therapeutic purposes due to its anti-oxidant, anti-inflammatory and antibacterial properties, among others. This research evaluates the antibacterial activity of ethanolic and acetonic extracts of Curcuma longa against Propionibacterium acnes, recently renamed Cutibacterium acn

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Kawaii, Satoru, Yasuhiko Tomono, Kazunori Ogawa, Minoru Sugiura, Masamichi Yano, and Yuko Yoshizawa. "Anticancer Activity and Flavonoid Content of Various Citrus Juices." In ACS Symposium Series. American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2004-0871.ch007.

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Bovy, Arnaud G., Victoria Gómez-Roldán, and Robert D. Hall. "Strategies to Optimize the Flavonoid Content of Tomato Fruit." In Recent Advances in Polyphenol Research. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444323375.ch5.

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Sadia*, B. O., J. K. Cherutoi, and C. M. Achisa. "Phytochemical screening, total phenolic and flavonoid content of Senna didymobotrya." In Advances in Phytochemistry, Textile and Renewable Energy Research for Industrial Growth. CRC Press, 2022. http://dx.doi.org/10.1201/9781003221968-20.

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Giannetti, Vanessa, Maurizio Boccacci Mariani, and Greta Livi. "Study of the Volatile Component and the Flavonoid Content of Edible Flowers." In Circular Economy and Sustainability. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-28292-8_27.

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Ghosal, Saheli, D. K. Bhattacharyya, and Jayati Bhowal. "Effect of Saccharomyces cerevisiae Fermentation Process on the Phenolic Content, Flavonoid Content and Antioxidant Properties of Flaxseeds." In Lecture Notes in Bioengineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7409-2_12.

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Conference papers on the topic "Flavonoids content"

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Popovici, Lucia-Florina, and Simona Oancea. "COMPARATIVE STUDY ON PHENOLICS, FLAVONOIDS, TANNINS AND ANTIOXIDANT PROPERTIES OF CALENDULA OFFICINALIS EXTRACTS OBTAINED BY DIFFERENT EXTRACTION TECHNIQUES." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.21.

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The aim of this study was to evaluate the influence of several extraction methods on the content of bioactive compounds of polyphenolic structure and antioxidant properties of petals from marigold flowers (Calendula officinalis). Ethanolic extracts prepared using maceration, turbo-extraction and bead-beating techniques were investigated for total phenolics, flavonoids and tannins, and antioxidant activities as measured by FRAP and DPPH assays, as well. The results showed that the highest phenolic content (1316.367 � 4.316 mg GAE/100 g DW) and antioxidant activity by FRAP (505.755 � 4.623 mg as

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Zavery, Ashna, Sumanth Mahalingam, and Sohail Zaidi. "Protocol Verification to Extract Flavonoid Content from Various Coffee Species." In 2024 IEEE Integrated STEM Education Conference (ISEC). IEEE, 2024. http://dx.doi.org/10.1109/isec61299.2024.10664744.

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Nartea, Mihaela, Maria Cojocaru-Toma, Cristina Ciobanu, Anna Benea, and Maria Cristeva. "Total content of flavonoids in species of the genus heichrysum." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab20.

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The genus Helichrysum (Asteraceae) comprises about 600 species of perennial or annual plants distributed in Europe, Asia, and Africa, which are an abundant source of secondary metabolites, such as flavonoids, chalcones, phenolic acids, coumarins, pyrones, and terpenes [1]. In the Republic of Moldova only one species H. arenarium (L.) Moench-(popularly known as everlasting), occurs sporadically on the cliffs of the right bank of the Nistru River, in the landscape reserve "Climăuții de jos", in the Steppe Hills steppes, on the limestones of Naslavcea, with a declining population [2]. Another spe

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Djelić, Gorica, Vesna Veličković, and Milica Pavlović. "SESELI RIGIDUM WALDST. & KIT: SECONDARY METABOLITES AND ANTIOXIDANT ACTIVITY OF METHANOL, ETHYL ACETATE AND ACETONE EXTRACTS." In 2nd International Symposium on Biotechnology. University of Kragujevac, Faculty of Agronomy, 2024. http://dx.doi.org/10.46793/sbt29.34gdj.

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Representatives of the Seseli genus are recognized for their biological activities. The objective of this study was to analyze the phenolic and flavonoid content, along with the antioxidant effects, of methanol, ethyl acetate, and acetone extracts obtained from the roots, leaves, stems, and fruits of S. rigidum. Through spectrophotometric measurements of phenols and flavonoids, the results revealed that the polar (methanol) solvent extract from the leaves exhibited the highest concentrations of phenols (98.66 ± 2.64 mg GA/g) and flavonoids (20.74 ± 0.55 mg RU/g), surpassing those obtained from

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Almughraby, E., M. I. Kalimullin, A. A. Mostyakova, and O. A. Timofeeva. "VARIETY SPECIFICITY OF PHYTOCHEMICAL COMPOSITION B. OLERACEA L. VAR. ACEPHALA." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. DSTU-PRINT, 2020. http://dx.doi.org/10.23947/interagro.2020.1.340-343.

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Purpose of work - Comparative analysis the content of phenolic compounds, flavonoids, carotenoids, vitamin C, protein and sugars in different varieties of cabbage kale (B. oleracea L. convar. Acephala). As an object of study, we used 2 varieties of cabbage kale - Premier cabbage, Dwarf Blue Curled with green leaves, Redbor with red leaves and Scarlet with purple. It was shown that the content of phenolic compounds and flavonoids was significantly higher in red varieties, compared with green. The content of carotenoids was higher in green varieties. The highest content of flavonoid was found in

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Rodríguez-Ramírez, Juan, Irene Chaparro-Hernández, Lilia L. Méndez-Lagunas, and Luis Gerardo Barriada-Bernal. "Effect of spray drying conditions on antioxidants activity, flavonoids and total phenolic compounds of stevia rebaudiana." In 21st International Drying Symposium. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7518.

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In this work the spray drying of the fresh stevia leaves aqueous extract without encapsulating agents was carried out. The effect of the inlet air temperature (160-200 ºC) and the feed flow rate (2-3 kg/h) on the total phenolic content, the total flavonoid content and the antioxidant capacity were evaluated using Folin-Ciocalteau, aluminum chloride and DPPH methods respectively. The inlet air temperature had a significant effect on all parameters evaluated that showed a decrease when increasing the inlet air temperature, the feed flow rate had a significant effect on total flavonoids content a

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Todorović, Jovana D., Aleksandra D. Vesić, Nevena N. Petrović, and Marijana M. Kosanić. "Edible mushrooms as promising antioxidants." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.300t.

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Antioxidant activity of the acetone extracts of the mushrooms Macrolepiota procera and Chlorophyllum rhacodes has been screened in vitro by using different methods (DPPH radical scavenging and reducing power assay), and also it has been determined the total phenolic compounds as total flavonoid content. The research findings indicate that the acetone extract of M. procera demonstrated superior antioxidant activities when compared to C. rhacodes. Similarly, the mushroom M. procera displayed a more pronounced effect on reducing power. In addition, the total content of phenol and flavonoid in ext

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Rodina, Zlata Yu, and Olga V. Perfilova. "Chokeberry is a promising ingredient for designing food products with increased antioxidant value." In Agro-industrial complex: problems and prospects of development. Far Eastern State Agrarian University, 2024. https://doi.org/10.22450/978-5-9642-0637-8-214-220.

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The article discusses the possibility of using chokeberry as a promising ingredient for food. A study of the antioxidant value of a number of chokeberry varieties by flavonoids has shown that introducing it, regardless of the variety, into food formulations will increase the content of flavonols, anthocyanins and catechins in them.

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Kostikova, V. A., and T. N. Veklich. "Content of flavonoids and phenolcarboxylic acids in leaves and inflorescences of Spiraea salicifolia L. (Rosaceae)." In Problems of studying the vegetation cover of Siberia. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-927-3-2020-20.

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Comparative analysis of the content of the main groups of phenolic compounds (flavonoids and phenolic acids) was performed for the overground part of Spiraea salicifolia L. from natural habitats in Siberia and the Russian Far East. Populations of plants with the highest content of phenolic compounds were determined to reveal the potential of their use. It was found that the content of phenolcarboxylic acids in leaves (3,59–7,69 %) is higher than that in inflorescences (2,24–5,52 %), regardless of habitat. The distribution of flavonoids between leaves and inflorescences of S. salicifolia is amb

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Tkachova, E. N., L. V. Kalinichenko, and E. L. Malankina. "Intrasspecific variability in raw material biochemical composition of Hyssopus officinalis L." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-174.

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It was studied the content of essential oil, flavonoids, rosmarinic acid in raw materials of 14 varieties of medicinal hyssop from different origin. The content of essential oil ranged within 0.11-0.55% in fresh raw materials, rosmarinic acid in the range of 0.49-0.80%, and flavonoids - 0.68-1.65%.

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Reports on the topic "Flavonoids content"

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Levin, Ilan, Avtar K. Handa, Avraham Lalazar, and Autar K. Mattoo. Modulating phytonutrient content in tomatoes combining engineered polyamine metabolism with photomorphogenic mutants. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7587724.bard.

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Fruit constitutes a major component of our diet, providing fiber, vitamins, minerals, and many other phytonutrients that promote good health. Fleshy fruits, such as tomatoes, already contain high levels of several of these ingredients. Nevertheless, efforts have been invested in increasing and diversifying the content of phytonutrients, such as carotenoids and flavonoids, in tomato fruits. Increasing levels of phytonutrients, such as lycopene, is highly justified from the perspective of the lycopene extraction industry due to cost effectiveness reasons. Diversifying phytonutrients, in particul

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Eyal, Yoram, Gloria Moore, and Efraim Lewinsohn. Study and Manipulation of the Flavanoid Biosynthetic Pathway in Citrus for Flavor Engineering and Seedless Fruit. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7570547.bard.

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The proposal was aimed to identify and functionally characterize key genes/enzymes in the citrus flavanone neohesperidoside biosynthetic pathway and to use them as tools for metabolic engineering to decrease bitterness levels in grapefruit. The proposed section on fruit seediness was dropped as suggested by the reviewers of the proposal. Citrus flavor and aroma is composed of complex combinations of soluble and volatile compounds. The former includes mainly sugars, acids and flavanones, a subgroup of flavonoids that includes bitter compounds responsible for the bitter flavor of grapefruit and

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Kozhuharova, Asya, Marina Stanilova, Milena Nikolva, Rumen Denev, and Strahil Berkov. Glycyrrhizin and Flavonoid Contents of the Bulgarian Glycyrrhiza glabra Populations. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2021. http://dx.doi.org/10.7546/crabs.2021.07.05.

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Ramnaraine, Daveena. Beyond Antibiotics: Exploring the Antibacterial Mechanisms and Efficacy of Medicinal Plants and Endophytic Fungi. Florida International University, 2025. https://doi.org/10.25148/fiuurj.3.1.14.

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Due to the overuse of antibiotics, antibiotic resistance has become a global health crisis, and has forced an exploration of alternative antibacterial agents. This review explores natural solutions through the antibacterial potential of medicinal plants and their symbiotic endophytic fungi. Medicinal plants have been utilized for centuries to treat infections because of their rich phytochemical content, including alkaloids, flavonoids, and saponins, which exhibit antibacterial properties. Their efficacy is measured through minimum inhibitory concentration (MIC) assays, which showcase their abi

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Bryant, C. A., S. A. Wilks, and C. W. Keevil. Survival of SARS-CoV-2 on the surfaces of food and food packaging materials. Food Standards Agency, 2022. http://dx.doi.org/10.46756/sci.fsa.kww583.

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COVID-19, caused by the SARS-CoV-2 virus, was first reported in China in December 2019. The virus has spread rapidly around the world and is currently responsible for 500 million reported cases and over 6.4 million deaths. A risk assessment published by the Foods Standards Agency (FSA) in 2020 (Opens in a new window) concluded that it was very unlikely that you could catch coronavirus via food. This assessment included the worst-case assumption that, if food became contaminated during production, no significant inactivation of virus would occur before consumption. However, the rate of inactiva

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