نتایج جستجو برای: antiradical properties

تعداد نتایج: 869568  

2013
Emad A. Shalaby Sanaa M. M. Shanab

Present research was to evaluate and compare the antiradical and antioxidant activities of extracts from Spirulina platensis. In the present study, three extracts (Water, absolute methanol and 50% methanol in water) were analyzed for the total phenolic compounds, phycobiliprotein content: Antiradical and antioxidant activities were evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-az...

Journal: :Molecules 2010
Karel Smejkal Tereza Slapetová Pavel Krmencík Renata Kubínová Pavel Suchý Stefano Dall'Acqua Gabbriella Innocenti Ján Vanco Karolína Kalvarová Margita Dvorská Jirí Slanina Eva Kramárová Jan Muselík Milan Zemlicka

The in vitro antiradical activity of Schisandra chinensis lignans was investigated using DPPH, ABTS+, Fenton reaction inhibition and tyrosine-nitration inhibition assays, as were the in vivo antidiabetic activities of selected lignans in an animal model of alloxan-induced diabetes. Different degrees of antiradical activity were found, depending upon the structural parameters of the tested compo...

2010
A. G. Gopala Krishna B. R. Lokesh D. Sugasini V. D. Kancheva

Evaluation of the antiradical and antioxidant properties of extracts from Indian red chili and black pepper by in vitro models A. G. Gopala Krishna, B. R. Lokesh, D. Sugasini, V. D. Kancheva* 1 Department of Lipid Science and Traditional Foods, Central Food Technological Research Institute, Mysore 570020, India 2 Laboratory of Lipid Chemistry, Institute of Organic Chemistry with Centre of Phyto...

2016
Alfredo Aires Eduardo Marrinhas Rosa Carvalho Carla Dias Maria José Saavedra

Pterospartum tridentatum and Mentha pulegium are largely used in Portuguese folk medicine to treat several human disorders and inflammatory processes but without any consistent evidence for those beneficial pointed properties. Thus, the aim of the current work is to evaluate its benefits and phytochemicals related to those beneficial properties. A distinct polyphenol profile between P. tridenta...

Journal: :Physical chemistry chemical physics : PCCP 2017
D Dimić D Milenković J Dimitrić Marković Z Marković

The importance of molecules with antiradical potency that are produced in the human body has significantly increased. Among others, neurotransmitters and their metabolites act as the first line of defense against oxidative stress in the peripheral endocrine and the central nervous systems. Dopamine (DO), epinephrine (EP), norepinephrine (NE), l-DOPA, catechol, and three metabolites of dopamine ...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2005
Zbigniew Sroka Izabela Fecka Wojciech Cisowski

Polyphenolic compounds such as eriocitrin, luteolin-7-O-rutinoside, diosmin, hesperidin, narirutin, isorhoifolin, rosmarinic and caffeic acids were identified in an aqueous extract (Ex) obtained from peppermint leaves (Menthae x piperitae folium). The content of polyphenols in Ex was as follows: eriocitrin 38%, luteolin-7-O-rutinoside 3.5%, hesperidin 2.9%, diosmin 0.8%, isorhoifolin 0.6%, nari...

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