Antioxidant activity of plants 2012

2020-01-18 04:26

from the herbal plants due to safe therapeutic. In the present paper we have investigated Antioxidant activity of extracts from Withania somnifera Dunal. for its free radical scavenging activity by adopting various in vitro methods. The extracts were investigated for the antioxidant activity using 2, 2 diphenyl, 1 picryl hydrazylAntioxidant activity of betalain pigments (seven pure compounds and four combined fractions) from plants of the family Amaranthaceae was evaluated using the modified DPPH method. antioxidant activity of plants 2012

Antioxidant activity of carrageenans has been determined by various methods such as reducing power, iron ion chelation, and total antioxidant activity using betacarotenelinoleic acid system, radical scavenging, lipid peroxide inhibition, ferric reducing antioxidant power, nitric oxide scavenging, ABTS radical scavenging, superoxide radical, and hydroxyl radical scavenging assays (Sokolova et al

For antioxidant activity, the methanol fraction from stem extract showed the highest activity with an IC50 of 2. 4 mgml. Water extraction was the high TPC with 10, 136. 9 mg GAEg dry weight. Plants contain antioxidant phytochemicals like Phenolic acid, Flavonoids, Carotenoids, Tannic acid, Ascorbic acid, Vitamin A, E etc. Some plants found that rich of antioxidant like Morignaantioxidant activity of plants 2012 Nov 16, 2012 A detailed study was performed on the antioxidant activity of the methanol extract of whole plant of Torilis leptophylla (TLM) and its derived fractions nhexane (TLH), chloroform (TLC) ethyl acetate (TLE) nbutanol (TLB) and residual aqueous fraction (TLA) by in vitro chemical analyses and carbon tetrachloride (CCl4) induced hepatic injuries (

Antioxidant activity of plants 2012 free

Flavonoids are phenolic compounds, present in several plants, which inhibit lipid peroxidation and lipoxygenases14. The most important chain breaking antioxidant is tocopherol, present in human membranes. Vitamin C and tocopherol both help to minimize the antioxidant activity of plants 2012 Sep 02, 2012  It became clear that L. camara leaves, flower, root and stem present the highest antioxidant activity compared with reference antioxidant Vitamin C for DPPH scavenging activity. Polyphenols was found in all the samples and in the following order: Leaves flower The major plant compounds characterized by antioxidant activity are polyphenols. The antioxidant activity of polyphenols is accredited to their redox properties i. e. , adsorbing and neutralizing free radicals, quenching singlet and triplet oxygen, and decomposing peroxides. The most common and widely distributed group of phenolic compounds in plants is flavonoids. Feb 01, 2012  Antioxidant Activity of Moringa oleifera Tissue Extracts Andra F. S. Santos IBBInstitute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal The applications and limitations of antioxidant activity measurement assays were also highlighted to identify the precise path to be followed for future research in the area of plant antioxidants. Keywords: Antioxidant activity, pharmacology, plants, prooxidants, secondary metabolites. Introduction

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