نتایج جستجو برای: radical scavenging activity

تعداد نتایج: 1214122  

Journal: :Molecules 2018
Forough Khajehei Nikolaus Merkt Wilhelm Claupein Simone Graeff-Hoenninger

The aim of this study was to evaluate the quality characteristics of seven yacon (Smallanthus sonchifolius Poepp. and Endl.) cultivars (Cajamarca, Cusco, Early White, Late Red, Morado, New Zealand and Quinault) cultivated in the southwest of Germany. The following phyto/chemical traits were investigated in different yacon tuber parts (flesh, peel, and whole tubers): total dry matter, sugar cont...

Journal: :Bioscience, biotechnology, and biochemistry 2006
Satoshi Yamauchi Takuya Sugahara Yuki Nakashima Akihiro Okada Koichi Akiyama Taro Kishida Masashi Maruyama Toshiya Masuda

The radical and superoxide scavenging activities of oxidized matairesinols were examined. It could be assumed that the free benzylic position was important for higher radical scavenging activity. The different level of activity was observed between 7'-oxomatairesinol (Mat 2) and 7-oxomatairesinol (Mat 3). The activity of 8-hydroxymatairesinol was lower than that of matairesinol (Mat 1). The sup...

2007
Qiong Wu Cheng Zheng Zheng-Xiang Ning Bao Yang

In this study, sulfated low molecular-weight Tremella fuciformis polysaccharides (SLTP) with different sulfate contents were synthesized and their antioxidant activities, including superoxide anion radical, 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical and hydroxyl radical scavenging activities were investigated. The results indicated that, compared to natural Tremella fuciformis polysaccharide...

Journal: :International journal of biological macromolecules 2012
Yuanfeng Wang Zhiwei Yang Xinlin Wei

Three polysaccharide fractions (TPS1, TPS2 and TPS3) with different molecular weights were obtained using ultra filtration membranes from crude tea polysaccharide (CTPS) extracted from abandoned lower grade tea leaves. Each fraction contained different contents of neutral sugar, uronic acid, protein, and total polyphenols. These differences provided basis for the antioxidant and free radical sc...

2006
K.P. Lissy Thara K. Simon M.S. Lathab

The methanolic extract of Sida retusa Linn.(Malvaceae),Urena lobata Linn.(Malvaceae)and Triumfetta rhomboidea Jacq.(Teliaceae) roots were found to inhibit lipid peroxidation, scavenge hydroxyl and superoxide radicals in vitro. The quantity of S.retusa root extract required for 50% inhibition of lipid peroxidation, scavenging hydroxyl radical and superoxide radical was 1130.24 ug/ml respectively...

Journal: :jundishapur journal of natural pharmaceutical products 0
elina asiaei shiraz university of medical sciences, international branch, shiraz, iran melika farshad faculty of dentistry, shiraz university of medical sciences, shiraz, iran mohammad abdollahi toxicology and diseases group, pharmaceutical sciences research center, tehran university of medical sciences, tehran 1417614411, iran akram jamshidzadeh pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, iran; department of pharmacology and toxicology, pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, iran. tel: +98-7132424126, fax: +98-7132426070 amin reza akbarizadeh pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, iran mohammad amin soltanzadeh shiraz university of medical sciences, international branch, shiraz, iran

in the present study, free-radical-scavenging and antioxidant activities of angipars™, an herbal extract which has been registered as a therapeutic drug for diabetic foot ulcer, were examined. we investigated the protective effect of angipars™ on cytotoxicity produced by exposure to h2o2 (300 µm) in hepg2 and a549 cell lines, using mtt assay, glutathione (gsh) content analysis, and lipid peroxi...

Journal: :iranian journal of pharmaceutical research 0
tayyebe hatami 1-novel drug delivery research center, school of pharmacy, kermanshah university of medical sciences, kermanshah, i.r. iran. 2-student research committee, kermanshah university of medical science, kermanshah, i.r. iran. sayyed ahmad emami department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, i.r. iran. sayyed shahram miraghaee novel drug delivery research center, school of pharmacy, kermanshah university of medical sciences, kermanshah, i.r. iran mahdi mojarrab novel drug delivery research center, school of pharmacy, kermanshah university of medical sciences, kermanshah, i.r. iran.

total phenolic contents (tpc) of five different extracts (petroleum ether, dichloromethane, ethyl acetate, ethanol and ethanol-water) of artemisia biennis willd were measured in this work. the antioxidant activity was investigated by three different methods: β-carotene bleaching (bcb) test, 2,2-diphenyl-1-picrylhydrazyl (dpph) radical scavenging method and ferrous ion chelating (fic) assay. amo...

Afsaneh Tavassoli, Mohammad Ali Ebrahimzadeh,

The genus Helichrysum (Asteraceae) is comprised of approximately 500-600 species and used for the treatment of a variety of pathological conditions in folk medicine in many countries. In this study, antioxidant activities of aerial parts of H. pseudoplicatum were investigated employing various in vitro assay systems, i.e. 2,2-diphenyl-1-picrylhydrazyl (DPPH)  and nitric oxide radical scave...

Journal: :In vivo 2007
Yoshinori Kadoma Seiichiro Fujisawa

BACKGROUND The in vivo radical-scavenging activity of curcumin (CUR) and THC (tetrahydrocurcumin, a metabolite of CUR) does not occur in isolation, but through an intricate antioxidant network together with co-antioxidants such as glutathiones (GSH). In the present investigation, the radical-scavenging activity of CUR and THC with 2-mercapto-1-methylimidazole (MMI, a thiol) was studied using th...

ژورنال: علمی شیلات ایران 2021

In the present study, the antioxidant activity of different concentrations of protein hydrolysate from Common carp (Cyprinus carpio) head at different hydrolysis time was investigated. For this purpose, 8 Common carp fish with average weight of 0.766±0.034 kg were prepared from market. Fish heads were hydrolyzed by Alcalase (1% v/w at 55˚C and pH 8) at different hydrolysis times (30, 60, 120 an...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید