نتایج جستجو برای: hydroxyl radical scavenging activity and reducing power overall

تعداد نتایج: 17070737  

Badrul Alam Ekramul Haque Haque, Fahima Akter Jesmin Chowdhury Kazi Sifath-E-Jahan Nahida Parvin Rashna Sharmin Pia Sharmin Akter

Objective:The present study was designed to evaluate the antioxidant, analgesic, and anti-inflammatory activities ofthe methanolic extract of Piper betle leaves (MPBL). Materials and Methods: MPBL was evaluated for anti-inflammatory activity using carrageenan-induced hind paw edema model. Analgesic activity of MPBL was evaluated by hot plate, writhing, and formalin tests. Total phenolic and fla...

C.K.K. Nair, M.S. Nair, P.S. Hema, S.A. Divakaran,

Background: Alpinia galanga L. belonging to the family Zingiberaceae is widely grown in the state of Kerala, India. They are effective antioxidant and free radical scavenger under both in vitro and in vivo condition. The efficacy of the isolated flavonoids in conferring protection from radiation induced damages to genomic DNA was studied. Materials and Methods: The bioflavonoids, galangin and k...

Journal: :The Journal of Plant Science Research 2023

Trigonella foenum-graecum (TG) is one of the important medicinal plant which have antioxidant, antidiabetic, antilipidemic and antimicrobial properties. The main aim this study was to evaluate free radical scavenging properties, total phenolic, flavonoid content phytochemical screening foenum-graecum. antioxidant activities like 2,2-diphenylpicrylhydrazyl (DPPH), hydroxyl activity, hydrogen per...

Journal: :Molecules 2016
Xueyong Ren Liang He Yanbin Wang Junwen Cheng

The optimization extraction process, preliminary characterization and antioxidant activities of polysaccharides from Semen Juglandis (SJP) were studied in this paper. Based on the Box-Behnken experimental design and response surface methodology, the optimal extraction conditions for the SJP extraction were obtained as follows: temperature 88 °C, extraction time 125 min and ratio of liquid to so...

2012
Emanuel VAMANU

The antioxidant action of ethanolic extract from Agaricus bisporus which is available in the supermarkets of Bucharest, Romania, was assessed by determining its reducing power and its radical scavenging activity. The determinations were made by analyzing the freeze-dried ethanolic extract. The radical scavenging activity was determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH), superoxide rad...

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...

2010
Jeetendra Nehete Manish Bhatia Minal Narkhede

Costus speciosus (Koen) J.E. Sm. plant and its extracts are used for treatment of fever, snake bites, jaundice, and as a purgative, astringent and antibacterial agent. In the present study, an attempt has been made to evaluate in vitro antioxidant activity of different extracts of this plant by DPPH radical scavenging activity, total antioxidant capacity, nitric oxide scavenging activity, ion c...

2005
Shyr-Yi LIN Hao-Yu LIU Yeh-Lin LU Wen-Chi HOU

The antioxident effects of crude mucilages (CM) and partially purified mucilages (PPM) from three different Taiwanese yam cultivars—including Dioscorea alata L. cv. Tainong 1 (TN1), Dioscorea alata L. cv. Tainong 2 (TN2), and D. alata L. var. purpurea (Roxb.) Ming-Jen (MJ)—were evaluated, including 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, hydroxyl radical, and superoxide radical scavenging...

Journal: :Nanoscale research letters 2016
Iryna O Skorochod Alla O Roy Ivan K Kurdish

It was found that if introduced into a nutrient medium of 0.05-1 g/L nano-SiO2, the oxidant activity (OA) of the culture medium (CM) of bacilli increased by 43.2-60.1 % and the antioxidant activity (AA) decreased by 4.5-11.8 %. SiO2 nanoparticles had different effects on antiradical activity (ARA) of the CM of Bacillus subtilis IMV B-7023. In particular, nano-SiO2 had no significant effect on t...

Journal: :Molecules 2017
Bu-Yan Liao Dan-Ye Zhu Kiran Thakur Ling Li Jian-Guo Zhang Zhao-Jun Wei

Polysaccharides from natural plant products are gaining considerable attention due to their multi-faceted health effects, as well their functional applications in food production. We reported the sequential extraction of mulberry leaf polysaccharides (MLPs) with hot buffer (HBSS), chelating agent (CHSS), dilute alkali (DASS) and concentrated alkali (CASS), in order to obtain polysaccharide frac...

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