Relationship structure-antioxidant activity of hindered phenolic compounds
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چکیده
منابع مشابه
Antioxidant activity relationship of phenolic compounds in Hypericum perforatum L.
BACKGROUND The St John's Wort (Hypericum perforatum; Clusiaceae) has been used in traditional and modern medicine for a long time due to its high content of biologically active phenolics. The purpose of this work was to develop a method for their fractionation and identification, and to determine the most active antioxidant compounds in plant extract. RESULTS An LC-MS method which enables fas...
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The addition of synthetic antioxidants to oils and/or foods is one of the most efficient ways to prevent lipid oxidation. However, the safety of synthetic additives has been questioned stimulating the evaluation of naturally occurring compounds with antioxidative properties. Although there is no assurance of the safety of natural antioxidants, there is some comfort knowing that such antioxidant...
متن کاملMechanism change in estimating of antioxidant activity of phenolic compounds.
The 2,2'-diphenyl-1-picrylhydrazyl (DPPH(•)) method is commonly applied for the estimation of antioxidant activity of single compounds and plant extracts. In this method, the amount of disappeared DPPH(•) in the examined system, determined spectrophotometrically, is a measure of the antioxidative (hydrogen-donating) activity of compounds. The present paper discusses the influence of buffer comp...
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ژورنال
عنوان ژورنال: Grasas y Aceites
سال: 2014
ISSN: 1988-4214,0017-3495
DOI: 10.3989/gya.0225141