نتایج جستجو برای: vitro antioxidant activity

تعداد نتایج: 1488217  

2012
Subramanion L. Jothy Azlan Aziz Yeng Chen Sreenivasan Sasidharan

In the present study, in vitro antioxidant, free radical scavenging capacity, and hepatoprotective activity of methanol extracts from Polyalthia longifolia and Cassia spectabilis were evaluated using established in vitro models such as ferric-reducing antioxidant power (FRAP), 2,2-diphenyl-1-picryl-hydrazyl (DPPH(•)), hydroxyl radical (OH(•)), nitric oxide radical (NO(•)) scavenging, metal chel...

میرزایی, زیبا, دهقان, غلامرضا ,

Background & Aims: The aim of this study was to evaluate and compare the antioxidant activity and the collecting rate of free radicals in the environment of in vitro, by utilizing the methanol’s extracts from different parts of the plants such as Plantago major, Trifolium subterraneum, Boswellia thurifera, Juglans regia (walnut). Materials & Methods: Antioxidant and antiradica...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
z sabouri m barzegar department of food science and technology, tarbiat modares university, p.o.box: 14115-336, tehran, iran, tel: + 98 – 21 – 48292323, fax: + 98 – 21 - 48292200 ma sahari h naghdi badi

background: oxidation of lipids causes reduction of different properties of products that contains lipids. nowadays, there is a growing demand for the natural antioxidants due to the harmful effects of synthetic antioxidants such as bha, bht and tbhq. objective: in this study, extract of aerial parts of echinacea purpurea l. was used instead of synthetic antioxidants in cake then, antioxidant a...

Branislav Ranković Marijana Kosanić, Marko Dašić

The aim of the study is to examine in-vitro antioxidant and antimicrobial activity of the acetonic and methanolic extracts of the mushrooms Boletus aestivalis, Boletus edulis and Leccinum carpini. Antioxidant activity was evaluated by using free radical scavenging activity and reducing power. In addition, total content of phenol and flavonoid in extracts were determined as pyrocatechol equivale...

2011
Harpreet Singh

s The present study is an endeavour to evaluate anti inflammatory and antioxidant activities of ehtanolic extract of steam bark of Zanthoxylum armatum. In vivo anti inflammatory activity was evaluated in wistar species of rats by using carrageenin induced paw edema, where as in vitro antioxidant activity was performed by DPPH free radical method. The plant extract exhibited significant anti-inf...

2016
K. G. KRIPA D. CHAMUNDEESWARI

Lamiaceae herbs known for their culinary properties are a rich source of potentially health-beneficial antioxidant polyphenols. The objective of this investigation was to evaluate and prove the in vitro antioxidant activity of five different extracts of aerial parts of the plant Leucas aspera, belonging to the family Lamiaceae on different models namely the DPPH free radical scavenging assay, F...

2015
Tekeshwar Kumar Vishal Jain

The aim of this study was to determine the impending antioxidant properties of different extracts of crude methanolic extract (CME) of leaves of Lannea coromandelica (L. coromandelica) and its two ethyl acetate (EAF) and aqueous (AqF) subfractions by employing various established in vitro systems and estimation of total phenolic and flavonoid content. The results showed that extract and fractio...

2018
Hong-Mei Shang Hai-Zhu Zhou Jun-Yan Yang Ran Li Hui Song Hong-Xin Wu

This study was designed to investigate the in vitro and in vivo antioxidant activities of inulin. The in vitro assays demonstrated that the antioxidant activities of inulin, including the DPPH radical scavenging activity, ABTS scavenging activity and ferric reducing power, were weak and significantly lower than those of Vitamin C (P < 0.05). The influence of dietary supplementation with inulin ...

Journal: :iranian journal of pharmacology and therapeutics 0
sagar naskar adamas university upal kanti mazumder jadavpur university

the antioxidant activity and phytoconstituents of the hydromethanolic extract of litchi chinensis (helc) fruit was explored in the present study. the antioxidant potential of extract has been evaluated using several antioxidant models and results were compared to standards. fruit extract showed effective reducing power and free radical scavenging activity in a dose-dependent manner. in case of ...

Journal: :Bioresource technology 2009
Yu-Tang Tung Jyh-Horng Wu Chih-Yu Huang Yueh-Hsiung Kuo Shang-Tzen Chang

The present study was carried out to evaluate the antioxidant activities of bark extract of Acacia confusa and some of the isolated constituents from its ethyl acetate (EtOAc) fraction in various in vitro systems to gain mechanistic insights. Results from antioxidant assays together with authentic antioxidant standards revealed that EtOAc fraction showed strong superoxide radical scavenging act...

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