نتایج جستجو برای: antioxidant balance assay

تعداد نتایج: 447180  

Journal: :Chemistry & biodiversity 2010
Eva Hrabárová Katarína Valachová Peter Rapta Ladislav Soltés

Comparison of the effectiveness of antioxidant activity of three thiol compounds, D-penicillamine, reduced L-glutathione, and 1,4-dithioerythritol, expressed as a radical-scavenging capacity based on the two independent methods, namely a decolorization 2,2'-azinobis[3-ethylbenzothiazoline-6-sulfonic acid] assay and a rotational viscometry, is reported. Particular concern was focused on the test...

2013

The essential oil (EO) obtained by hydrodistillation from Teucrium polium L. was analyzed by gas chromatography and gas chromatography mass spectrometry (GC/MS). Antioxidant activity was evaluated through DPPH assay and Beta-carotene/linoleic acid assay. Twenty one components were identified representing (90.4%) of the EO. Main constituents of the essential oil were found as Spathulenol (15.06%...

Journal: :International Journal of Pharmacy and Pharmaceutical Sciences 2023

Objective: The primary objective was to study the in vitro antioxidant and anticancer evaluation of novel 5-benzylidene substituted rhodanine derivatives molecular docking studies most active compounds with 3 different targets. Methods: Antioxidant potential were studied by DPPH assay, done MTT assay Computational using various softwares such as ACD Lab Chemsketch 12.0, molinspiration Discovery...

2015
NUPUR S. SRIVASTAVA

Neurodegenerative diseases like Parkinson’s disease (PD),Amyotrophic Lateral Sclerosis (ALS) and Schizophrenia are a group of illness with diverse clinical importance and etiologies. Oxidative stress in which production of highly reactive oxygen species (ROS) and reactive nitrogen species (RNS) overwhelms antioxidant defences, is a feature of many neurological diseases. Lycopene, the most poten...

2015
Luísa C. Carvalho Patrícia Vidigal Sara Amâncio

Plants can maintain growth and reproductive success by sensing changes in the environment and reacting through mechanisms at molecular, cellular, physiological, and developmental levels. Each stress condition prompts a unique response although some overlap between the reactions to abiotic stress (drought, heat, cold, salt or high light) and to biotic stress (pathogens) does occur. A common feat...

2012
Seong-Eun Kim In-Kyoung Lee Yun-A Jung Ji-Hee Yeom Dae-Won Ki Myeong-Seok Lee Ja-Gyeong Song Yong-Ju Jin Soon-Ja Seok Bong-Sik Yun

Mushrooms collected from Deogyu mountain, Korea, in 2011, were identified as four classes, four orders, 13 families, 22 genera, and 33 species. In particular, agaricales was most abundant and comprised more than 70%. Their antioxidant activities were estimated using three different bioassay methods, the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS) radical scavenging assay, 1,1-diph...

2007
Alina Błaszczyk Janusz Skolimowski

Ethoxyquin phosphate (EQ-P) and ethoxyquin hydrochloride (EQ-HCl) were synthesized and studied for genotoxic and antioxidant activities with the use of comet assay and micronucleus test performed on human lymphocytes. The results were compared with the activities of the earlier studied ethoxyquin (EQ; 1,2-dihydro-6-ethoxy-2,2,4-trimethylquinoline), a strong antioxidant used mainly as a preserva...

Journal: :Food chemistry 2013
Fatima Abderrahim Silvia M Arribas M Carmen Gonzalez Luis Condezo-Hoyos

A new microplate-adapted DPPH rapid assay was developed to assess the antioxidant capacity of pure compounds and foods. The assay was carried out in buffered medium (methanol: 10mmol/l Tris buffer pH 7.5, 1:1 v/v) and reaction was completed at 10min. The scavenging capacity index (SCI), a theoretical antioxidant parameter directly related to the antioxidant capacity of samples, was calculated. ...

Journal: :Asia Pacific journal of clinical nutrition 2007
Dongmei Yang Qiushuang Wang Leqin Ke Jianmei Jiang Tiejin Ying

Lotus rhizome powder was extracted with solvents of different polarities. Antioxidant activities of the extracts were evaluated by a 2, 2'-diphenylpicrylhydrazyl (DPPH) assay and a beta-carotene bleaching assay, and compared with that of butylated hydroxyanisole (BHA) and ascorbic acid. Methanol showed the highest extract yield among all of solvents. Although acetone extract had the highest tot...

2015
Linlin Jing Huiping Ma Pengcheng Fan Rongmin Gao Zhengping Jia

BACKGROUND Rhododendron anthopogonoides Maxim, a kind of traditional Tibetan medicine, has been used to remove body heat, body detoxification, cough, asthma, stomachic and swelling, eliminate abundant phlegm and inflammatory for a long time. In the present study, the total phenols and total flavonoid contents as well as antioxidative properties of the crude extract and solvent fractions of R. a...

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