In virto Antioxidant Activity of Ethanol Phase Fraction from Two-liquid-phase Extraction of Flaxseed

Abstract

Abstract: The antioxidant activity of ethanol phase fraction extracted by choloform, n-butyl alcohel and water from two-liquid- phase extraction of flaxseed was evalvated respectively. The results showed that n-butyl alcohel extracts is the strongest in inhibiting linoleic acid peroxidation, less than BHT, then chloroform extraction, and then water extraction. The capacities of scavenging [DPPH·] and [·OH] of n-butyl alcohel extracts were stronger than chloroform extracts and water extracts, extracts IC50 are 3.1μg/ml and 18.15μg/ml, rutin (IC50=3.58μg/ml and 7.96μg/ml), respectively. Capacity of scavenging [DPPH·] of chloroform extracts is weaker than water extracts, but it is stronger in scavenging [·OH] than water extracts; Fe2+ chelate activity of n-butyl alcohel extracts is strongest, then chloroform extracts, and then water extracts.

Key words: , flaxseed； two-liquid-phase； ethanol phase； antioxidation；

LI Gao-Yang, DING Xiao-Lin. In virto Antioxidant Activity of Ethanol Phase Fraction from Two-liquid-phase Extraction of Flaxseed[J]. FOOD SCIENCE, 2006, 27(10): 143-146.

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In virto Antioxidant Activity of Ethanol Phase Fraction from Two-liquid-phase Extraction of Flaxseed

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