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Journal articles on the topic 'Flavonoid and Aluminium chloride Complex'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

B, Aparna, and P. Hema B. "Preliminary Screening and Quantification of Flavonoids in Selected Seeds of Apiaceae by UV-Visible Spectrophotometry with Evaluation Study on Different Aluminium Chloride Complexation Reaction." Indian Journal of Science and Technology 15, no. 18 (2022): 857–68. https://doi.org/10.17485/IJST/v15i18.131.

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Abstract <strong>Background :</strong> The objective of the study includes a preliminary phytochemical screening of selected plant seeds of Apiaceae for flavonoid content and developing a suitable method of quantification by a UV-Visible spectrophotometer and validation of the same. <strong>Methods:</strong> Selected dry seeds of Apiaceae were extracted using 70% ethanol at 60◦C for 1h in the shaker. Procedures of different chemical compositions were designed to evaluate flavonoid-Aluminium chloride complexation reaction to determine the best suitable method for the quantificati

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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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Syahputra, Hafid. "Phytochemical Screening and Determination of Phenolic and Flavonoid Contents in Ethanol Extract of Phyllanthus emblica L. Fruit." Indonesian Journal of Pharmaceutical and Clinical Research 7, no. 2 (2024): 70–77. https://doi.org/10.32734/idjpcr.v7i2.18235.

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Phyllanthus emblica L. fruit is known for its potent antioxidant activity, closely associated with its phenolic and flavonoid content. This study aims to analyse the secondary metabolite composition and determine the total phenol and flavonoid levels in Phyllanthus emblica fruit. The extraction process was carried out using the maceration method with 96% ethanol as the solvent, followed by a rotary evaporator evaporation. The ethanol extract was subjected to phytochemical screening with colour reagents, and the total phenol and flavonoid contents were assessed using a colourimetric method. The

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Sultana, Sharmin, Ivan Lozada Lawag, Lee Yong Lim, Kevin J. Foster, and Cornelia Locher. "A Critical Exploration of the Total Flavonoid Content Assay for Honey." Methods and Protocols 7, no. 6 (2024): 95. http://dx.doi.org/10.3390/mps7060095.

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This study critically investigates the aluminium chloride–based colorimetric determination of the total flavonoid content (TFC) of honey. Following a comprehensive review of the recent literature reporting the use of the assay in the determination of TFC in honey, 10 honeys of different botanical origins were investigated using the colorimetric method alongside an artificial honey that was used as a control. Using spiking experiments, this study demonstrates that the flavonoid concentrations commonly found in honey are too low for a direct measurement and thus some of the TFC data reported in

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Yamin, Ruslin, Mistriyani, et al. "Determination of total phenolic and flavonoid contents of jackfruit peel and in vitro antiradical test." Food Research 5, no. 1 (2020): 84–90. http://dx.doi.org/10.26656/fr.2017.5(1).350.

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Free radical is any molecular species that have unpaired free electrons in their outer orbital shell that make radicals highly reactive, resulting in pathogenesis conditions such as cellular injury, premature aging, cancer, hepatic disorders, neurodegenerative diseases, cardiovascular disease, and kidney disease. One source of natural antioxidant is jackfruit. The purpose of this research was to determine the phenolic and flavonoid contents in the extracts and fractions of jackfruit peel and their potential as antioxidants. Jackfruit peel powder was extracted from maceration. The total phenoli

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Загорулько (Zagorulko), Елена (Elena) Юрьевна (Jur'evna), Мария (Marija) Георгиевна (Georgievna) Ожигова (Ozhigova), Ирина (Irina) Ивановна (Ivanovna) Чемесова (Chemesova), and Владимир (Vladimir) Геннадьевич (Gennad'evich) Лужанин (Luzhanin). "QUANTIFICATION OF TOTAL FLAVONOID CONTENT IN THE AERIAL PART AND IN THE TINCTURE OF IRIS LACTEA (IRIDACEAE)." chemistry of plant raw material, no. 2 (December 29, 2017): 105–13. http://dx.doi.org/10.14258/jcprm.2018023368.

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Iris lactea Pall.of Iridaceae Juss. family contains a complex of biologically active substances with antiviral, immunomodulatory, adaptogenic, antihypoxic, cardiostimulatory and antitumor properties, Thus, the herbal substance and dosage forms on its basis are promising in medicine.The main groups of active substances in the aerial part of Iris Lactea are flavonoids and xanthones. There is a known method of chromatospectrophotometric quantification of total xanthone content calculated as alpisarin. Meanwhile, the development of a convenient method of quantification of total flavonoid content i

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Zhuravel, U., R. Konechna, and І. Jasicka-Misiak. "Total phenolic and flavonoid content, antioxidant activity of thalictrum foetidum." Chemistry, Technology and Application of Substances 6, no. 1 (2023): 88–92. http://dx.doi.org/10.23939/ctas2023.01.088.

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The objective of the present study was to determine the total content of phenolics and flavonoids in extracts of Thalictrum foetidum. The total phenolic content was estimated spectrophotometrically using Folin Ciocalteu method. The total content of flavonoids was determined by spectrophotometric analysis, based on the measurement of the absorption of the complex of aluminum chloride with flavonoids. The antioxidant effects of the extracts Thalictrum foetidum were investigated.

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8

Z, Mukasa-Tebandeke, I., Karume, I, Ssebuwufu, J, Wasajja, H. Z, and Nankinga, R. M. "Comparison of Antioxidant, Flavonoid and Polyphenol Content of Three Selected Solanaceae Genera from Kigezi, Southwest Uganda." Scholars International Journal of Chemistry and Material Sciences 5, no. 4 (2022): 40–60. http://dx.doi.org/10.36348/sijcms.2022.v05i04.001.

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Solanaceae is family of plants widely used in food, sauce and herbal medicine because its members are rich in carbohydrates, proteins, fats, vitamins, mineral salts and other trace and essential nutrients like phenols and flavonoids that retard degenerative diseases and stress. Knowledge on purposeful use of solanaceae in food and medicine in Uganda is low. Aqueous extracts of dry leaves of three selected solanum genera growing in Kabale were compared for their polyphenol and flavonoid contents and antioxidant properties. Total polyphenol (TPC) and total flavonoid (TFC) contents were determine

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Nuralifah, Yamin, D. R. Halidi, M. Arba, and W. O. S. Zubaydah. "Determination of total phenolic and flavonoid content of Ghontoghe (Kleinhovia hospita L.) leaves: in vitro antioxidant study." Food Research 6, no. 6 (2022): 267–72. http://dx.doi.org/10.26656/fr.2017.6(6).440.

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The Ghontohge plant (Kleinhovia hospita L.) has been used as a traditional medicine to treat scurvy, lice, eye pain, jaundice and hepatitis, cholesterol, diabetes, hypertension and treat pneumonia. Therefore, it is possible that plants can be used as antioxidants and redox signalling sourced from natural materials. The purpose of this study was to investigate the antioxidant potential and evaluate the total phenolic and flavonoid content of Ghontoghe leaves and investigate the most potent fraction as an antioxidant from the extract and fractions of Ghontoghe leaves. Ghontoghe leaf powder was e

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Sen, Tatyana Vladimirovna, Valentina Nikolaevna Bubenchikova, and Ksenia Romanovna Bubenchikova. "DEVELOPMENT OF METHODS FOR QUALITATIVE IDENTIFICATION AND QUANTITATIVE DETERMINATION OF THE AMOUNT OF FLAVONOIDS IN THE HERB CORONILLA VARIA L. (CORONILLA VARIA L.)." chemistry of plant raw material, no. 2 (June 1, 2024): 237–44. https://doi.org/10.14258/jcprm.20240212647.

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Annotation. Coronilla varia is a perennial herbaceous plant, widely represented in the regions of the Central Black Earth Region, the Caucasus and Siberia. Various parts of the plant are used in folk medicine to treat diathesis, diarrhea, prolapse of the stomach, and as a cardiac and diuretic. The chemical composition of the herb elm variegated is not sufficiently studied. The poorly studied classes of biologically active substances of elm grass include flavonoid compounds. The aim of the work is to develop methods of qualitative identification and quantitative determination of flavonoids in t

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Zubaydah, M. H. Sahumena, W. O. N. Fatimah, Sabarudin, M. Arba, and Yamin. "Determination of antiradical activity and phenolic and flavonoid contents of extracts and fractions of jackfruit (Artocarpus heterophyllus Lamk) seeds." Food Research 5, no. 3 (2021): 36–43. http://dx.doi.org/10.26656/fr.2017.5(3).563.

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Jackfruit (Artocarpus heterophyllus Lamk) is a plant from the Moraceae family that is widespread in Indonesia. Empirically, jackfruit can be used to cure hypertension, diabetes, cancer, asthma, dermatosis, coughs, wounds, acne, and diarrhea. The bioactive compounds in jackfruit include phenolics and flavonoids, which function as natural antioxidants. This research investigated the antiradical activity of jackfruit seed extracts and fractions using DPPH (2-2-diphenyl-1-picrylhydrazyl) and examined the total phenolic and flavonoid contents which may be developed as functional medicines and foods

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12

Trineeva, Olga V., Natalya A. Kovaleva, Elena F. Safonova, and Alexey I. Slivkin. "Application of TLC for the assessment of the flavonoid profile of sea buckthorn leaves during different phases of their preparation." Сорбционные и хроматографические процессы 23, no. 4 (2023): 547–57. http://dx.doi.org/10.17308/sorpchrom.2023.23/11564.

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Sea buckthorn (Hippophae rhamnoides L.) is a perennial wind-pollinated dioecious berry shrub. The leaves, according to the literature, contain flavonoids, tannins, vitamins, organic, polyunsaturated fatty acids and amino acids and are a source of phenolic compounds (flavonoids, tannins, phenolic acids). According to the literature, sea buckthorn leaves contain various flavonoids, extracted mainly by alcohol-water mixtures. Thus, the composition of the flavonoid complex contains derivatives of quercetin, isorhamnetin and kaempferol (rutin, quercitrin, myricetin, luteolin, vitexin, narcissin, et

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Goyal, Shweta, Geeta Tewari, H. K. Pandey, and Anjali Kumari. "Exploration of Productivity, Chemical Composition, and Antioxidant Potential of Origanum vulgare L. Grown at Different Geographical Locations of Western Himalaya, India." Journal of Chemistry 2021 (June 9, 2021): 1–12. http://dx.doi.org/10.1155/2021/6683300.

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Origanum vulgare L., the most complex and variable species of the genus Origanum, is used to cure various diseases in the traditional medicinal system. In the current investigation, O. vulgare was collected from its natural origin and further multiplied for two years at the experimental farm of DIBER field station, Auli, and afterwards, it was grown at three different altitudes, i.e., DIBER field station of Auli (2744 m), Pithoragarh (1524 m), and Haldwani (412 m), under natural field conditions. The essential oil was extracted using the Clevenger apparatus and analyzed by GC/MS and GC/FID. Th

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14

Kutateladze, G. R., and L. M. Fedoseeva. "Research in the Development and Validation of the Method of Quantitative Determination of Flavonoids in the Common Sorrel Herba, Gathered in the Altai Territory." Drug development & registration 8, no. 2 (2019): 80–86. http://dx.doi.org/10.33380/2305-2066-2019-8-2-80-86.

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Introduction. Common sorrel (Rumex acetosa L.) is a biennial herb from the Buckwheat family (Polygonaceae L.). In our previously studies of phenolic compounds composition of alcohol extraction and ethereal, ethyl acetate, butanol fractions of common sorrel herba and flavonoids of the flavonol group was found. From the literature sources it is known that flavonoids are one of the groups of biologically active compounds with anti-inflammatory action. In this regard, the actual task is to assess the quantitative content of flavonoids in common sorrel herba.Aim. Is the development and validation o

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15

Yamin, Yamin, Andriani Rina, Sabarudin Sabarudin, Haijah Nur, and Kasmawati Henny. "Antioxidant activity assay and determination of phenolic and flavonoid content of Libho (Ficus Septica Burm. F) fruits." Open Journal of Chemistry 8, no. 1 (2022): 008–13. http://dx.doi.org/10.17352/ojc.000029.

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Background: One of the plants used in Indonesian traditional medicine Libho (Ficus Septica Burm. F) is traditionally used to treat some diseases, including malaria, diarrhea, diabetes, analgesic, antifungal, dysentery, anthelmintic, antioxidant, hemostatic and anti-inflammatory. Purpose: The purpose of the study is to investigate the potential in vitro antioxidant activity assay and phytochemical content of Libho fruits. Methods: Libho leaves powder was extracted with the maceration method Antioxidant activity was evaluated using ABTS cation and CUPRAC radicals. Total phenolic content was dete

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Struchkov, Petr, Vladimir Beloborodov, Vladimir Kolkhir, Inna Voskoboynikova, and Alexey Savvateev. "Comparison of spectrophotometric methods of total flavonoid assay based on complex formation with aluminum chloride as applied to multicomponent herbal drug angionorm." Journal of Pharmaceutical Negative Results 9, no. 1 (2018): 1. http://dx.doi.org/10.4103/jpnr.jpnr_22_17.

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17

Ahmad, Monsur, Farzana Shabnam Punam, Mahammad Amanullah, et al. "Antioxidant Activity and Bioactive Compounds of Fruits Available in Bangladesh." Health Dynamics 1, no. 1 (2024): 22–29. http://dx.doi.org/10.33846/hd10105.

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Background: The complex problems of different chronic degenerative diseases are spreading in human health across the glove. To combat this problem, fruits are the effective gear proved by many epidemiological studies. The aim of the study was to determine the antioxidant activity and three bioactive compounds like total flavonoids, total polyphenols and total anthocyanins in 23 species of fruits available in Bangladeshi market. Methods: Antioxidant activity (AOA) and bioactive compounds of fruits were determined by UV-visible spectroscopy. Antioxidant activity was undertaken by DPPH scavenging

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Likhanov, A. F., O. V. Sereda, V. M. Gryb, V. I. Melnyk, L. S. Osadchuk, and T. Yuskevych. "Biochemical markers of vital biodestruction in common oak (Quercus robur)." Biosystems Diversity 27, no. 4 (2019): 314–21. http://dx.doi.org/10.15421/011941.

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The wood of the common oak (Quercus robur L.) has high mechanical strength, elasticity and resistance to fracture. However, constitutional stability is not always able to provide the plants with reliable protection from wood-decay fungi, and the initial stages of biodegradation are difficult to determine. Therefore, this study concerns research on appropriate biochemical markers for early diagnostics of wood defects. The total content of phenolic compounds in leaves and wood was determined by a spectrophotometer Optizen Pop using Folin & Ciocalteu’s phenol reagent; the flavonoid content in

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Sultana, Sharmin, Md Lokman Hossain, Tom Sostaric, Lee Yong Lim, Kevin J. Foster, and Cornelia Locher. "Investigating Flavonoids by HPTLC Analysis Using Aluminium Chloride as Derivatization Reagent." Molecules 29, no. 21 (2024): 5161. http://dx.doi.org/10.3390/molecules29215161.

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This is the first study to report on high performance thin layer chromatography (HPTLC) generated spectrophotometric data to systematically capture flavonoid compounds using optimized derivatization with either AlCl3 or NaNO2-AlCl3-NaOH as visualisation reagents. While the traditional AlCl3 colorimetric method using UV–Vis analysis provides valuable insights into the presence of flavonoids and allows derivation of the total flavonoid content (TFC) of a sample, HPTLC fingerprints obtained after spraying with AlCl3 or NaNO2-AlCl3-NaOH enable the visualization of the various flavonoids present in

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Airapetyan, Emma E., Victoria N. Leonova, and Dmitry A. Konovalov. "Development of a method for quantitative determination of the amount of flavonoids in Artemisia scoparia herb." Человек и его здоровье 25, no. 2 (2022): 105–12. http://dx.doi.org/10.21626/vestnik/2022-2/11.

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Plants of the genus Artemisia have a rich complex of biologically active compounds, among which essential oils, sesquiterpene lactones, flavonoids, and acetylenic compounds predominate. Particular attention is drawn to Artemisia scoparia Waldst. et Kit. Due to a wide range of therapeutic activity, wormwood paniculata is used as a choleretic, hepatoprotective, antimicrobial, anti-inflammatory agent. Flavonoids are one of the leading groups of biologically active compounds (BAS) in water and water-alcohol extracts from the aerial part of Artemisia scoparia. These compounds have powerful hepatopr

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Dhianawaty, Diah, Ruslin Ruslin, Mas Rizky Anggun Adipurna Syamsunarno, and Helmi Haminah. "Kandungan Total Flavonoid Dari Ekstrak Metanol Akar Imperata cylindrical (L) Beauv. (Alang-alang)." Talenta Conference Series: Tropical Medicine (TM) 1, no. 3 (2018): 025–28. http://dx.doi.org/10.32734/tm.v1i3.256.

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Masyarakat di Sulawesi Tenggara telah memanfaatkan akar alang-alang (Imperata cylindrica) sebagai obat hipertensi. Ekstrak methanol akar alang-alang dari Kendari terbukti mempunyai aktivitas antihipertensi. Studi menunjukkan senyawa-senyawa fenolat dapat menurunkan tekanan darah. Aktivitas penurunan tekanan darah dikarenakan senyawa-senyawa fenolat mempunyai aktivitas antioksidan dan kemampuan menghambat angiotensin converting enzyme (ACE). Berdasarkan penelitian yang dilaporkan, tujuan penelitian ini menentukan adanya flavonoid, dan mengukur kandungan flavonoid total dengan menggunakan metode

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Bigi, Franca, Giovanni Sartori, Raimondo Maggi, et al. "Aluminium chloride·2-isocyanatobenzoyl chloride complex: crystal structure and reactivity." J. Chem. Soc., Perkin Trans. 1, no. 15 (1996): 1815–18. http://dx.doi.org/10.1039/p19960001815.

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23

Rambi, Griffin A. D., Vanda S. Kamu, and Max R. J. Runtuwene. "Uji Fitokimia dan Antioksidan dari Daun Yantan (Blumea chinensis DC)." Jurnal MIPA 4, no. 2 (2015): 32. http://dx.doi.org/10.35799/jm.5.1.2016.11409.

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Telah dilakukan penelitian untuk menentukan kandungan fitokimia dan aktifitas antioksidan dari ekstrak etanol daun yantan (Blumea chinensis DC). Kandungan fitokimia yang diuji adalah total fenolik dan total flavonoid. Total fenolik menggunakan metode Folin-Ciocalteu (Yadaf dan Agarwala, 2010), lalu untuk mengetahui total flavonoid menggunakan aluminium klorida (Sultana et al., 2011), dan pengujian aktifitas antioksidan menggunakan 1,1-difenil-2-pikrilhidrazil (DPPH) (Subedi et al., 2011). Hasil penelitian menunjukan kandungan fenolik total sebesar 26,75 mg/L dan kandungan flavonoidnya sebesar

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Borkataky, M., B. B. Kakoti, and L. R. Saikia. "Influence of total phenolic content and total flavonoid content on the DPPH radical scavenging activity of Costus speciosus (Koen Ex. Retz.) Sm." South Asian Journal of Experimental Biology 4, no. 5 (2015): 261–66. http://dx.doi.org/10.38150/sajeb.4(5).p261-266.

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The focus of the present study was to determine the association of the anti-oxidant activity of Costus speciosus (Koen Ex. Retz.) Sm. with the total phe-nolic content and the total flavonoid content. The antioxidant activity of the extracts was quantified by diphenylpicrylhydrazyl (DPPH) assay. The total phenolic content was determined by the Folin-Ciocalteau method and the total flavonoid content was determined by the aluminium chloride method. Among the four extracts of the plant, the ethanol extract exhibited the high-est antioxidant activity and also the highest total phenolic and flavonoi

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Кurdyukov, Evgeny E., Elena F. Semenova, Aleksandr V. Mitishev, Yаkov P. Moiseev, and Anna V. Kuznetsova. "Comparative analysis of the total quantity of flavonoids in domestic and imported raw material of stevia." Aspirantskiy Vestnik Povolzhiya 20, no. 5-6 (2020): 164–69. http://dx.doi.org/10.17816/2072-2354.2020.20.3.164-169.

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Relevance. Standardization of plant raw material derived from stevia is a topical issue, since this plant (Stevia rebaudiana Bertoni) contains sweet diterpene glycosides and is used as a natural sugar substitute. In addition, stevia contains flavonoids which are biologically active compounds that exert antioxidant, anti-inflammatory and capillary-strengthening properties. Currently, spectrophotometric methods are used to identify and quantify flavonoids in medicinal plants. They are fast, convenient and do not require sophisticated equipment. The aim of our paper is comparative phytochem

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Rusli, Zaldy, Yulianita Yulianita, and Elfrida Erawati Sitanggang. "PERBANDINGAN KADAR FLAVONOID EKSTRAK ETANOL DAUN KELENGKENG (Dimocarpus logan L.) DENGAN VARIASI METODE EKSTRAKSI." EKOLOGIA 22, no. 1 (2022): 31–36. http://dx.doi.org/10.33751/ekologia.v22i1.5042.

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Longan plants (Dimocarpus logan L.) are generally used by the community only for their fruit. Longan leaves contain secondary metabolites such as flavonoids, polyphenols, saponins, and tannins. Flavonoids are polyphenolic compounds and have antioxidant properties that are not heat-resistant, therefore a suitable method is needed for extracting flavonoids, especially methods that do not use heat. Maceration extraction method is an extraction method by immersing simplicia at room temperature, while the Microwave Assisted Extraction (MAE) extraction method is an extraction method using microwave

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Zulfahmi, Rosmaina, N. Aprianis, Ziyayeva G, B. Mombayeva, and G. Zhaparkulova. "Comparison of phenolic, flavonoid and antioxidant properties of leaves and root of two Eurycoma spp." IOP Conference Series: Earth and Environmental Science 1490, no. 1 (2025): 012038. https://doi.org/10.1088/1755-1315/1490/1/012038.

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Abstract The roots of Eurycoma apiculata and Eurycoma longifolia are many utilized as a source of raw materials for medicines. The harvesting of roots of both species is done by uprooting so that the number of individuals declines in natural populations. The use of other parts of both species as leaves needs to be studied. The objective of this research was to investigate the flavonoid, phenolic, and antioxidants content from the methanol extract of the roots and leaves of Eurycoma apiculata and Eurycoma longifolia. Determination phenolic and flavonoid total was performed using Folin-Ciocalteu

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Salim, Reny, Tuty Taslim, Fita Selonni, Verawaty Verawaty, and Irene Puspa Dewi. "Decoction of Cocos nucifera Linn. : Antioxidant Activity, Total Phenolics, and Flavonoids Contents." Indonesian Journal of Pharmaceutical Science and Technology 12, no. 2 (2025): 129–36. https://doi.org/10.24198/ijpst.v12i2.45058.

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Young coconut husk is one of the wastes that can be processed as a source of herbal medicine. Previous research on young coconut husk has provided information about its tannin content, antioxidant activity, and other bioactivities. This study aims to measure antioxidant activity and total phenolic and flavonoid contents from young coconut husk decoction. The determination of antioxidant activity and total phenolic and flavonoid contents used successively were DPPH, Folin-Ciocalteu, and aluminium chloride methods. The antioxidant activity test of young coconut husk decoction revealed an IC50 va

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Nerdy, N., B. R. Barus, H. J. El-Matury, S. Ginting, N. F. Zebua, and T. K. Bakri. "Comparison of flavonoid content and antioxidant activity in calyces of two roselle varieties (Hibiscus sabdariffa L.)." IOP Conference Series: Earth and Environmental Science 956, no. 1 (2022): 012001. http://dx.doi.org/10.1088/1755-1315/956/1/012001.

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Abstract Free radicals can cause various degenerative diseases such as cancer and cardiovascular disease. Flavonoids have antioxidant abilities that inhibit damage from free radicals. The roselle antioxidant mechanism is associated with high flavonoid content. Red and purple roselles are two varieties of roselle (Hibiscus sabdariffa L.) cultivated in Indonesia. The aim of this research was to analyze the differences in flavonoid content and antioxidant activity in the calyces of two varieties of roselle (Hibiscus sabdariffa L.), red and purple. Total flavonoid analysis and antioxidant activity

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De, Ranjit, Kyung Won Jo, and Kyong-Tai Kim. "Influence of Molecular Structures on Fluorescence of Flavonoids and Their Detection in Mammalian Cells." Biomedicines 10, no. 6 (2022): 1265. http://dx.doi.org/10.3390/biomedicines10061265.

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Flavonoids are being increasingly applied for the treatment of various diseases due to their anti-cancer, anti-oxidant, anti-inflammatory, and anti-viral properties. However, it is often challenging to detect their presence in cells and tissues through bioimaging, as most of them are not fluorescent or are too weak to visualize. Here, fluorescence possibilities of nine naturally occurring analogous flavonoids have been investigated through UV/visible spectroscopy, molecular structure examination, fluorescent images in mammalian cells and their statistical analysis employing aluminum chloride a

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Bazavluk, Yehor, Vira Hamada, Nataliya Polish, Roksolana Konechna, Solomiia Mykytiuk, and Volodymyr Novikov. "TOTAL PHENOLIC AND FLAVONOID CONTENT, ANTIOXIDANT ACTIVITY AND ANTIMICROBIAL POTENTIAL OF PHLOMIS PUNGENS WILLD." Scientific Journal of Polonia University 37, no. 6 (2020): 133–39. http://dx.doi.org/10.23856/3713.

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The objective of the present study was to determine the total content of phenolics and flavonoids in ethanol extracts of Phlomis рungens Willd. The total phenolic content was estimated spectrophotometrically using Folin Ciocalteu method. The total flavonoid content was measured by aluminium chloride colorimetric assay. The antioxidant and antimicrobial effects of the extracts were investigated. The Phlomis рungens Willd can be regarded as a promising natural plant source of antimicrobial and antioxidant effects with high potential for phytopreparations.

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Levishko, A., I. Gumeniuk, V. Tsvigun, S. Mazur, and O. Botsula. "The influence of polyguanidin on the direction of biochemical processes in wheat (Triti- cum L.) plants." Agroecological journal, no. 1 (May 17, 2023): 136–45. http://dx.doi.org/10.33730/2077-4893.1.2023.276739.

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Modern crop production requires a balance of high and sustainable productivity with maximum safety for the environment, consumers and agricultural workers. The well-known chemical compound polyguanidine, which was previously used as a disinfectant, surfactant and complexing agent, has recently become widely used as a plant growth and development stimulant. Despite the increasing use of polyguanidine preparations as a growth stimulant, there is no data in the literature on its mechanism of action on plants. There are many studies that try to determine whether the effect of biostimulants on plan

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Pasichnik, E. A., O. I. Paukshta, V. G. Nikolaev, and N. S. Tsvetov. "Extraction of bioactive components from Chamaenerion angustifolium (L.) herb growing in Kola Peninsula using deep eutectic solvents." IOP Conference Series: Earth and Environmental Science 981, no. 3 (2022): 032080. http://dx.doi.org/10.1088/1755-1315/981/3/032080.

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Abstract This work is devoted to new results of a deep-eutectic-solvents-based extraction of bioactive components from Chamaenerion angustifolium (L.) study. This plant has a lot of valuable properties, such as antioxidant, anti-inflammatory, anti-cancer, and others. Plant material was collected in the Murmansk region. Choline chloride + malonic or malic acids were used as solvents (DES). Reference solvents were 95% ethanol and water. For obtained extracts total polyphenols content with Folin-Ciocolteu reagent, total flavonoid content with aluminium chloride, and total antioxidant capacity usi

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Alexandrov, S. E., and V. A. Chistiakov. "Kinetics of LPCVD of aluminium nitride films based on pyrolysis of aluminium chloride complex." Le Journal de Physique IV 11, PR3 (2001): Pr3–155—Pr3–161. http://dx.doi.org/10.1051/jp4:2001319.

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Safrina, Ulya, Wardiyah Wardiyah, and Harpolia Cartika. "Evaluation of Total Flavonoid, Total Phenolic, and Antioxidant Activity of Etlingera elatior (Jack) R.M.Sm Flower, Fruit, and Leaf." Majalah Obat Tradisional 27, no. 1 (2022): 50. http://dx.doi.org/10.22146/mot.72210.

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Etlingera elatior (E. elatior) plant has long been used as a kitchen spice and daily food. E. elatior has potential as an antioxidant because it contains polyphenol and flavonoid compounds widely found in the leaves, fruit, and flowers. This study measures the total flavonoid content, total phenol content, and antioxidant activity using the ABTS method. Total phenol content was determined by the Follin-Ciocalteu method and total flavonoid content was determined by the Aluminium Chloride method. The results showed that the total flavonoid content from the highest to the lowest value from E. ela

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Poudel, Mukti Ram, Mukesh Babu Chand, Namrata Karki, and Bijaya Pant. "Antioxidant activity and total phenolic and flavonoid contents of Dendrobium amoenum Wall. ex Lindl." Botanica Orientalis: Journal of Plant Science 9 (November 1, 2015): 20–26. http://dx.doi.org/10.3126/botor.v9i0.21010.

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Dendrobium amoenum has biologically active phytoconstituents valued for traditional Chinese or folk medicine as tonic. Total phenolic and flavonoid contents of its stem extract was estimated by using Folin-Ciocalteu’s reagent and Aluminium chloride methods respectively. Antioxidant activity was determined by DPPH free radical scavenging method. Total phenolic content found in acetone (134.34 μg GAE/mg extract) and chloroform (101.55 μg GAE/mg extract) extract was significantly higher than other solvent extracts. Similarly, these two extracts had significantly high flavonoid content (acetone: 1

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Gideon Antwi and Dr. Matthew Kweku Essilfie. "Patterns of Phytochemical Variation in Populations of Amaranthus Viridis In Two Ecological Zone Of Ghana." International Journal of Contemporary Microbiology 10, no. 1 (2024): 1–9. http://dx.doi.org/10.37506/c8zrvq98.

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The study aimed to assess the patterns of variations in total phenolic content, total flavonoid content, and antioxidant activity in populations of A. viridis in two different ecological zones of Ghana. Matured plant leaves of Amaranthus viridis were collected at two different locations namely Aburi Botanical Gardens and Legon Botani-cal Gardens and were subjected to ethanolic extraction. The extracts were analyzed for antioxidant activity using 1,1-diphenyl 1,1-2 picrylhydrazyl radical scavenging, total phenolic content was analyzed usingFolin-Ciocalteu reagent, and total flavonoid content wa

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Purwanto, Ukhradiya Magharaniq Safira, Ardelia Athaya, Dewi Anggraini Septaningsih, and Mega Safithri. "Total Flavonoids, Antioxidant Capacity, and Metabolite Profiling of Red Ginger (Zingiber officinale var. rubrum) Jahira 1 Variety." Indonesian Journal of Applied Research (IJAR) 5, no. 3 (2024): 208–19. https://doi.org/10.30997/ijar.v5i3.512.

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Red ginger (Zingiber officinale var. rubrum) is traditionally recognized for its medicinal properties, largely due to its antioxidant potential attributed to secondary metabolites such as flavonoids. This study aimed to evaluate the total flavonoid content and antioxidant capacity of ethanol and water extracts of red ginger from Sukabumi, specifically the Jahira 1 variety, as well as identify bioactive compounds. Extraction was carried out using the maceration method. The total flavonoid content was determined using the aluminium chloride colorimetric method, while the antioxidant capacity was

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Upadhyaya, S., E. Khatiwora, and D. K. Bora. "Estimation of total Phenol and flavonoid contents of Citrus limon L Burmf leaves from North Eastern region of India." Journal of Drug Delivery and Therapeutics 9, no. 2-s (2019): 40–42. http://dx.doi.org/10.22270/jddt.v9i2-s.2443.

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Citrus plants belonging to the family Rutaceae, are traditionally used by the local people India to treat scurvy, rheumatism, stomachic, diarrhea, liver disorders and used as an antioxidant. They are valuable source of phenolic and other biologically active compounds. Phenolic compounds have been reported to have multiple biological effects. In this paper quantitative determination of phenols and flavonoids of Citrus limon L Burmf leaves extracts was carried out using spectrophotometric methods. The plant material was collected from Assam, north eastern region of India. Total phenolic content

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Karpiuk, Viktoriia, and Roksolana Konechna. "TOTAL PHENOLIC AND FLAVONOID CONTENT, ANTIOXIDANT ACTIVITY OF FICARIA VERNA." Scientific Journal of Polonia University 46, no. 3 (2021): 229–34. http://dx.doi.org/10.23856/4630.

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The objective of the present study was to determine the total content of phenolics and flavonoids in ethanol extracts of a plant from the family of Ranunculaceae – Ficaria verna. Harvesting of medicinal plant was carried out in ecologically clean regions of west Ukraine in spring 2020. The extracts were obtained by maceration of grass, leaves,and flowers to compare the content of active substances in different types of raw materials. The total phenolic content was estimated spectrophotometrically using Folin Ciocalteu method. The total flavonoid content was measured by aluminium chloride color

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Nnaji, Nnaemeka, Njemuwa Nwaji, and Tebello Nyokong. "Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium." International Journal of Electrochemistry 2020 (September 30, 2020): 1–11. http://dx.doi.org/10.1155/2020/8892559.

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Tetrakis[(benzo[d]thiazol-2-yl-thio) phthalocyaninato] gallium(III)chloride (1) and tetrakis[(benzo[d]thiazol-2ylphenoxy) phthalocyaninato] gallium(III)chloride (2) were successfully electrodeposited onto aluminium for corrosion retardation in 1.0 M hydrochloric acid solution. The aim of this study was to compare the corrosion resistance of electrodeposited metallated phthalocyanines. Scanning electron microscopy, X-ray diffraction, electrochemical impedance spectroscopy (EIS), and polarization confirmed the aluminium corrosion inhibition potentials of complexes 1 and 2. EIS and polarization t

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Wan Amalina Wan Mamat, Syed Ahmad Tajudin Tuan Johari, Muhammad Yusran Abdul Aziz, Ahmad Syibli Othman, and Abdul Manaf Ali. "Evaluation of the DPPH Radical Scavenging Activity, Total Phenolic Content and Total Flavanoid Content of Different Solvent Extracts of Catunaregam tomentosa (Blume ex DC) Tirveng Leaves." Journal Of Agrobiotechnology 12, no. 2 (2021): 1–7. http://dx.doi.org/10.37231/jab.2021.12.2.248.

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Catunaregam tomentosa (Blume ex DC) Tirveng is commonly known as Khet in Thailand and Bisa Ular or Badang in Malaysia. The tree is widely distributed in the north-east region of Thailand while in Malaysia the tree usually grows in the open waterfront area at Terengganu. This plant belongs to the Rubiaceae family, and the genus catunaregam has interesting pharmacological activities such as anti-inflammatory, antispasmodic, antidysenteric, antifertility and immunomodulatory. In this study, the leaves were extracted using dichloromethane, ethyl acetate and ethanol. Total phenolic was determined b

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Prakash, Dharmalingam, and Ganapasam Sudhandiran. "Dietary flavonoid fisetin regulates aluminium chloride-induced neuronal apoptosis in cortex and hippocampus of mice brain." Journal of Nutritional Biochemistry 26, no. 12 (2015): 1527–39. http://dx.doi.org/10.1016/j.jnutbio.2015.07.017.

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Prabha Lahare, Rajeshwari, and Harishankar Yadav. "ASSESSMENT OF TOTAL PHENOL AND FLAVONOID CONTENT OF COSTUS SPECIOSUS AND CATHARANTHUS ROSEA IN DIFFERENT GEOGRAPHICAL REGIONS OF BALAGHAT DISTRICT, MADHYA PRADESH." International Journal of Advanced Research 8, no. 11 (2020): 1024–29. http://dx.doi.org/10.21474/ijar01/12099.

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Phenols and flavonoids are secondary metabolites of the plant and play a key role in scavenging free radicals and act as antioxidant. Costus speciosus (Costaceae family) and Catharanthus rosea (Apocynaceae family) are important ornamental and ethno medicinal plant rich in bioactive compounds used for treatment of several types of diseases. The plants are well known for their various pharmacological activities such as anti-diabetic, anticancer, antibacterial, antifungal, antioxidant, anti-hyperglycemic, anti-inflammatory, analgesic, antipyretic, anti-diuretic, antiulcer and anti-diarrheal activ

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HASHEMI, Z., and M. A. EBRAHIMZADEH. "EVALUATION OF THREE METHODS FOR THE EXTRACTION OF ANTIOXIDANTS FROM VICIA FABA L. BEAN AND HULLS." Latin American Applied Research - An international journal 44, no. 3 (2014): 203–8. http://dx.doi.org/10.52292/j.laar.2014.442.

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The efficiencies of three extraction methods (percolation, Soxhlet and ultrasonically assisted extraction) were evaluated for the extraction of antioxidants from Vicia faba L. bean and hulls. Antioxidant activities of extracts were evaluated using four different tests. Total phenolic and flavonoid contents of the extracts were determined using the Folin–Ciocalteu and aluminium chloride methods, respectively. Although the yield of extractions for ultrasonically assisted extraction was about half to one-fourth of that of other methods, the extraction ratio of total phenol was higher. Hull extrac

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Sandanasamy, Jessinta, Mashitah M. Yusoff, and Jolius Gimbun. "Optimization of Ultrasonic-Assisted Extraction of Polyphenolic and Flavonoids from Labisia pumila." Materials Science Forum 890 (March 2017): 167–70. http://dx.doi.org/10.4028/www.scientific.net/msf.890.167.

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This work presents an optimization study of polyphenol extraction from L. pumila with aid of sonication. The polyphenol content was evaluated using Singleton’s method and aluminium chloride colorimetric assay. The two level factorial design [2LF] was used to screen the significance of the extraction parameters. The results proposed that the polyphenols extraction are mainly affected by the total solid ratio [TSR] and residence time. The highest flavonoid content of 31.79 mg QE/ g DW and phenolic content of 19.65 mg GA/g DW was obtained from 80% and 10% aqueous ethanol [EtOH], respectively via

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Wathan, Nashrul, Muhammad Ikhwan Rizki, Amalia Khairunnisa, and Hilneser Simamora. "Total Flavonoids Determination and Antioxidant Activity of Ethyl Acetate, Ethanol, and Methanol Extracts from Seluang Belum Root (Luvunga sarmentosa (Blume) Kurz.)." Berkala Kedokteran 19, no. 1 (2023): 101. http://dx.doi.org/10.20527/jbk.v19i1.15733.

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Abstract: Flavonoids are phenolic compounds from nature that found in almost all parts of the plants. Seluang belum (Luvunga sarmentosa (Blume) Kurz.) root is one of the medicinal plants used by Dayak people in Central and South Kalimantan where in previous studies its part was contains flavonoids. This study aims to evaluate the best solvent for extracting flavonoid content and antioxidant activity using ethanol, methanol and ethyl acetate. The antioxidant activity performed by in vitro technique by DPPH assay. Total flavonoids content on the extracts of L. sarmentosa root determined using UV

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Sharma, Brijesh K., Kavita R. Loksh, and Alok Pal Jain. "Screening of Phytochemicals and Antioxidant Potential of Leaves Extract of Litsea glutinosa." Journal of Drug Delivery and Therapeutics 9, no. 4-s (2020): 1214–17. http://dx.doi.org/10.22270/jddt.v9i4-s.3939.

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Litsea glutinosa (Lour) leaves are deliberated as worthy traditional medicine. The aim of this study was to screen the phytochemicals, to evaluate the total flavonoid contents as well as antioxidant activity of various extract of Litsea glutinosa (Lour). The phytochemical analysis of each solvent extract was also carried out. Total flavonoid content was determined by aluminium chloride colorimetric assay. Antioxidant activity was determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH), Ferric reducing ability of plasma (FRAP) and Hydrogen Peroxide (H2O2) free radical scavenger methods. Phytoche

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SENTY VUN-SANG and MOHAMMAD IQBAL. "Phytochemical Analysis and Antioxidant Activity of Aqueous Extract of Ficus septica Leaves from Sabah, Malaysia." Borneo Journal of Resource Science and Technology 13, no. 2 (2023): 67–78. http://dx.doi.org/10.33736/bjrst.5591.2023.

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Medicinal plants have long been used as primary antidotes for a variety of ailments, including tuberculosis, heart diseases, cancer, wound healing, asthma, diabetes mellitus, hypertension, pharyngitis, etc. Medicinal plant of Ficus septica Burm. f. (Moraceae) is a subtropical tree commonly known as the ivory fig, septic fig or white-veined fig. The present work aims to investigate the antioxidant activity, phenolic and flavonoid content, and qualitative screening of various phytochemicals in aqueous extracts of F. septica leaves. Total phenol and flavonoid contents were calculated using Folin-

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Maslii, Yu, A. Materiienko, O. Ruban, I. Bezruk, and L. Ivanauskas. "Development of methods for analysis of the amount of flavonoids and their stability study in the combined dental gel." News of Pharmacy, no. 1(101) (February 1, 2021): 3–10. http://dx.doi.org/10.24959/nphj.21.40.

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An important aspect in the pharmaceutical development of dental medicines is to provide them with a prolonged therapeutic effect while reducing the side effects of drug substances and the possibility of long-term use. This can be achieved by using active components of plant origin. Aim. To develop methods for analyzing biologically active substances in the composition of a new combined dental gel. Materials and methods. The study object was a dental gel containing “Phytodent” complex tincture (PJSC “CPP Chervona zirka”, Ukraine). Based on the analysis of the composition of the tincture it was

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