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You searched for: Journal name Journal of Biologically Active Products from Nature Remove constraint Journal name: Journal of Biologically Active Products from Nature Subject term quercetin Remove constraint Subject term: quercetin Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Total Phenolic Content, Antioxidant and Antimicrobial Activity of Sambacus nigra L

Author:
Mohadese Mahboubi; Nastaran Kazempour; Atefeh Mahboubi
Source:
Journal of Biologically Active Products from Nature 2012 v.2 no.5 pp. 275-283
ISSN:
2231-1874
Subject:
Candida albicans; Caprifoliaceae; Escherichia coli; Gram-positive bacteria; Salmonella Typhimurium; Streptococcus pyogenes; aerial parts; anti-infective properties; antioxidant activity; antioxidants; beta-carotene; culture media; flowers; gallic acid; inhibitory concentration 50; linoleic acid; quercetin; small fruits
Abstract:
... Sambacus nigra or elder berry is a plant from Caprifoliaceae family. The total phenolic content (TPC), total flavonoid content (TFC), antioxidant and antimicrobial activity of methanolic, ethanolic and aqueous extract from aerial parts, berries and flowers were evaluated. TPC and TFC was assessed by spectrophotometrical method, the antioxidant activity was evaluated by DPPH and β-carotene linoleic ...
DOI:
10.1080/22311866.2012.10719135

2. Various Antioxidative Activities of Iranian Walnut (Juglans regia L.) Green Husks Hydroalcoholic Extract and its Effects on LDL Oxidation

Author:
Sharokh Bagheri; Hassan Ahmadvand; Ali Khosrowbeygi
Source:
Journal of Biologically Active Products from Nature 2012 v.2 no.6 pp. 330-340
ISSN:
2231-1874
Subject:
Juglans regia; antioxidant activity; antioxidants; ascorbic acid; dose response; gallic acid; hulls; inhibitory concentration 50; low density lipoprotein; monitoring; oxidation; quercetin; thiobarbituric acid-reactive substances; walnuts
Abstract:
... Walnuts contain several antioxidant compounds which are thought to contribute to their biological properties. The present work investigated the various antioxidative activities of walnut (Juglans regia L.) green husks hydroalcoholic extract (W) and its effect on oxidation of LDL induced by CuSO ₄in vitro by monitoring the formation of conjugated dienes and thiobarbituric acid reactive substances ( ...
DOI:
10.1080/22311866.2012.10719141

3. Chemical Composition and Antioxidant Activity of Algerian Juniperus phoenicea L. Extracts

Author:
Fouad Menaceur; Ahmed Benchabane; Mohamed Hazzit; Aoumeur Baaliouamer
Source:
Journal of Biologically Active Products from Nature 2013 v.3 no.1 pp. 87-96
ISSN:
2231-1874
Subject:
2,2-diphenyl-1-picrylhydrazyl; Juniperus phoenicea; alpha-pinene; antioxidant activity; antioxidants; butylated hydroxytoluene; chemical composition; essential oils; ethanol; gallic acid; gas chromatography-mass spectrometry; hydrodistillation; leaves; microwave treatment; quercetin; small fruits; solvents
Abstract:
... Essential oils of Algerian Juniperus phoenicea L. obtained from leaves and berries by hydrodistillation (HD) and from berries by Solvent Free Microwave Assisted Extraction (SFMAE) were investigated using both capillary GC and GC-MS techniques. The monoterpene hydrocarbons constituted the most prominent group of constituents (43.2-86.5 %) in the three essential oils with α-pinene (34.4-80.8 %) as t ...
DOI:
10.1080/22311866.2013.782754

4. Quercetin Protects Liver Cells and Mitochondria Against Doxorubicin Induced Oxidative Stress in Albinos' Rats

Author:
Kebsa Wided; Rouibah Hassiba; Lahouel Mesbah
Source:
Journal of Biologically Active Products from Nature 2015 v.5 no.5 pp. 331-338
ISSN:
2231-1874
Subject:
doxorubicin; hepatocytes; liver; catalase; superoxide dismutase; strength (mechanics); mitochondria; quercetin; oxygen; toxicity; rats; superoxide anion; enzyme activity; electron transport chain; oxidative stress
Abstract:
... Doxorubicin (DOX) is considered the most toxic anthracycline on hepatocytes. Despite this toxicity, DOX is widely used in clinical oncology practice due to its good therapeutic efficacy. Considerable effort has been expended to identify therapies that reduce this adverse response. This study treats the preventive effect of Quercetin (QE); one of the most abundant bioflavonoids, against doxorubicin ...
DOI:
10.1080/22311866.2014.957076

5. Antifungal and Drug Efflux Inhibitory Activity of Selected Flavonoids Against Candida albicans and Candida krusei

Author:
Martha Sachikonye; Stanley Mukanganyama
Source:
Journal of Biologically Active Products from Nature 2016 v.6 no.3 pp. 223-236
ISSN:
2231-1874
Subject:
Candida albicans; Candida krusei; antifungal agents; antifungal properties; azoles; catechin; epicatechin; ferulic acid; humans; minimum inhibitory concentration; quercetin; reserpine; resveratrol
Abstract:
... Flavonoids have been shown to have potential healthy properties in humans. The aims of this study was investigate antifungal activities of selected flavonoids against C. albicans and C. krusei in vitro . The antifungal effects of the flavonoids epicatechin, ferulic acid, resveratrol, quercetin and catechin were determined using the agar-disc diffusion. The broth dilution method was then used to de ...
DOI:
10.1080/22311866.2016.1231078

6. Antioxidant Capacity of Fractionated Extract and Structural Elucidation of Isolated Compounds from Leaf Extract of Hydrocotyl bonariensis Comm. Exlam

Author:
Emmanuel O Ajani; Saheed Sabiu; Mariam Zakari; Bolatito E Olanipekun; Jacob K. Akintunde; Fisayo A Bamisaye
Source:
Journal of Biologically Active Products from Nature 2017 v.7 no.3 pp. 166-177
ISSN:
2231-1874
Subject:
2,2-diphenyl-1-picrylhydrazyl; antioxidant activity; bioactive compounds; chloroform; ethyl acetate; free radical scavengers; hexane; high performance liquid chromatography; hydrogen peroxide; inhibitory concentration 50; leaf extracts; leaves; methanol; nitric oxide; quercetin; solvents; spectral analysis
Abstract:
... Hydrocotyl bonariensis is a plant which anticataractogenic potentials have been reported. In the present study an attempt was made to evaluate the in vitro antioxidant activity of the fractionates of the leaves extract and also characterize some of its chemical constituents. DPPH, H ₂O ₂, OH and NO free radical scavenging, metal chelating and reducing power activity was used to evaluate the antiox ...
DOI:
10.1080/22311866.2017.1329667

7. In Vitro Inhibitory Effects of Coconut Husk Extract on Some Enzymes Relevant to the Pathogenesis of Obesity, Gout and Hypertension

Author:
Emmanuel A. Irondi; Francis O. Shode; Wasiu O. Afolabi; Aline A. Boligon
Source:
Journal of Biologically Active Products from Nature 2017 v.7 no.5 pp. 358-368
ISSN:
2231-1874
Subject:
apigenin; bioactive compounds; bioactive properties; caffeic acid; chlorogenic acid; coir; dose response; free radicals; gallic acid; gout; high performance liquid chromatography; hulls; hypertension; inhibitory concentration 50; kaempferol; obesity; oxidative stress; p-coumaric acid; pathogenesis; quercetin; rutin; triacylglycerol lipase; xanthine oxidase
Abstract:
... Coconut husk is a potential natural source of some important bioactive compounds with several health benefits. In this study, the inhibitory effects of polyphenolics-rich extract of coconut husk on pancreatic lipase (PL), xanthine oxidase (XO) and angiotensin 1-converting enzyme (ACE), being enzymes whose over-activities contribute to the pathogenesis of obesity, gout and hypertension, respectivel ...
DOI:
10.1080/22311866.2017.1395297

8. Inhibitory Potential of Cocoa Leaves Polyphenolics-Rich Extract on Xanthine Oxidase and Angiotensin 1-Converting Enzyme

Author:
Emmanuel Anyachukwu Irondi; Suleiman Olanrewaju; Ganiyu Oboh; Festus Olasupo; Aline Augusti Boligon
Source:
Journal of Biologically Active Products from Nature 2017 v.7 no.1 pp. 39-51
ISSN:
2231-1874
Subject:
apigenin; caffeic acid; catechin; dose response; free radicals; gout; high performance liquid chromatography; hypertension; inhibitory concentration 50; leaves; p-coumaric acid; pathogenesis; polyphenols; quercetin; rutin; xanthine oxidase
Abstract:
... The over-activities of xanthine oxidase (XO) and angiotensin 1-converting enzyme (ACE) contribute to the pathogenesis of gout and hypertension, respectively. Polyphenolics and other natural inhibitors of XO and ACE have been shown to be useful for managing these two diseases. Therefore, this study evaluated the inhibitory potential of cocoa leaves polyphenolics-rich extract on XO and ACE, and its ...
DOI:
10.1080/22311866.2017.1293564

9. Quercetin Mediated Inhibition of Hydrogen Peroxide-induced Genomic DNA Damage and Toxicity

Author:
Tanmoy Mondal; Sandip Pal; Subrata Kumar Dey
Source:
Journal of Biologically Active Products from Nature 2017 v.7 no.3 pp. 200-213
ISSN:
2231-1874
Subject:
DNA; DNA damage; antioxidant activity; cell viability; chromosome aberrations; comet assay; hydrogen peroxide; lymphocytes; monitoring; protective effect; quercetin; spectral analysis; toxicity
Abstract:
... Flavonoids are reported to exhibit a wide variety of biological effects including antioxidant activities. The present study aims to explore the protective effect of the flavonol quercetin against hydrogen peroxide-mediated damage. The effects of quercetin on H ₂O ₂-mediated DNA damage were evaluated using spectrophotometric analyses, DNA damage monitoring by gel electrophoresis, cell viability, CB ...
DOI:
10.1080/22311866.2017.1329665

10. HPLC Analysis and Antioxidant Properties of Algerian Lepidium draba Ethyl acetate Extract

Author:
Bensaid Sara Ouissem; Bicha Sabrina; Benmekhebi Lotfi; Rebbas Khellaf; Bensouici Chawki; Demirtas Ibrahim; Benayache Samir; Benayache Fadila
Source:
Journal of Biologically Active Products from Nature 2018 v.8 no.4 pp. 265-271
ISSN:
2231-1874
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Lepidium draba; antioxidant activity; antioxidants; caffeic acid; catechin; chlorogenic acid; ethyl acetate; ferulic acid; gallic acid; hesperidin; high performance liquid chromatography; hydroxybenzaldehyde; inhibitory concentration 50; kaempferol; medicinal properties; p-coumaric acid; protocatechuic acid; quercetin; rosmarinic acid; rutin; vanillic acid
Abstract:
... The aim of this study was to identify and quantify the phenolic compounds of the Ethyl acetate extract from Lepidium draba using HPLC-TOF/MS; and to investigate the antioxidant potencies. In this work, we have found that the Ethyl acetate soluble fraction of L. draba is a good source of antioxidant, which is the result of its phenolic acids and flavonoids. Five methods were conducted, to determine ...
DOI:
10.1080/22311866.2018.1511381

11. Phytochemical, Antioxidant, Antimicrobial, and Protein Binding Qualities of Hydro-ethanolic Extract of Tinospora cordifolia

Author:
Vijay Kumar; Simranjeet Singh; Arjun Singh; Amit Kumar Dixit; Bhavana Srivastava; Gurpreet Kaur Sidhu; Ravindra Singh; Ajay Kumar Meena; Rajesh Pratap Singh; Varanasi Subhose; Om Prakash
Source:
Journal of Biologically Active Products from Nature 2018 v.8 no.3 pp. 192-200
ISSN:
2231-1874
Subject:
2,2-diphenyl-1-picrylhydrazyl; Tinospora cordifolia; anti-inflammatory activity; antifungal properties; antioxidant activity; aspirin; beta-sitosterol; flavanoids; gallic acid; nitric oxide; protein binding; quantitative analysis; quercetin; superoxide anion; therapeutics
Abstract:
... The study was performed to check the chemical, antioxidant, antimicrobial and protein binding qualities of the hydro-ethanolic extract of Tinospora cordifolia (TC). In qualitative and quantitative analysis of extract, the major compounds were tinocordioside, cordifolide A, palmatine, quercetin, β-sitosterol, heptacosanol, and syringin. Hydro-ethanolic extract of TC exhibited low antibacterial and ...
DOI:
10.1080/22311866.2018.1485513

12. Total Phenolic Contents and Antioxidant Activity of Methanol Extract from Leaves, Flowers and Stems of Warionia saharae L. from Morrocco

Author:
Said Khoudali; Abdelhak Essaqui; Said Essediki; Abdelmjid Dari
Source:
Journal of Biologically Active Products from Nature 2018 v.8 no.5 pp. 335-343
ISSN:
2231-1874
Subject:
2,2-diphenyl-1-picrylhydrazyl; antioxidant activity; flower extracts; flowers; inhibitory concentration 50; leaf extracts; leaves; methanol; quercetin; stems; Morocco
Abstract:
... The phenolic contents of metabolic extracts of Warionia saharae L. leaves, flowers and stems from Morocco were measured in this work. The antioxidant activities of these extracts were also evaluated. The leaves methanol extract afforded the highest yield (28.2 g/100 DW) while the lowest yield was obtained from the stems (5.6 g/100 DW). Total phenolic and flavonoid contents were (73.0 ± 0.52 mg Gal ...
DOI:
10.1080/22311866.2018.1516569

13. Characterization and Anti-stroke Activity of Stem Extract of Colebrookea oppositifolia Smith

Author:
Gollapalle Lakshminarayanashastry Viswanatha; Mohan Drishya; Darisi Venkata Kishore; Hanumanthappa Shylaja; Yogananda Moolemath
Source:
Journal of Biologically Active Products from Nature 2020 v.10 no.3 pp. 250-263
ISSN:
2231-1874
Subject:
Colebrookea oppositifolia; antioxidants; brain; brain damage; catalase; chemical constituents of plants; cognition; edema; glucose; histology; infarction; ischemia; quercetin; stem extracts
Abstract:
... This study was aimed to investigate the cerebroprotective potential of methanolic stem extract of Colebrookea oppositifolia (MsCO). The MsCO was evaluated against global ischemia and reperfusion (I/R) induced brain injury in Wistar rats. In the outcomes, the I/R insult caused significant deterioration of neurological (p<0.01), cognitive (p<0.01), and motor functions (p<0.01), along with significan ...
DOI:
10.1080/22311866.2020.1791731