食品与发酵工业2015，Vol.41Issue(9)：203-208,6.DOI:10.13995/j.cnki.11-1802/ts.201509039
马齿苋全草油的亚临界流体萃取、脂肪酸分析及抗氧化活性
Subcritical fluid extraction, fatty acid analysis and antioxidant activity for purslane oil
摘要
Abstract
The technology of subcritical fluid extraction of purslane oil was optimized through orthogonal experiment based on single-factor experiment, and extraction rate was the index.The fatty acid composition of the oil was analyzed by gaschromatography-mass spectrometer(GC-MS), and in vitro antioxidant capacity of the oil was evaluated using hydroxyl radicals (· OH), 1,1-diphenyl-2-picrylhydrazyl (DPPH ·) radicals and total antioxidant activity.The results showed that the optimum conditions of subcritical extraction were as following: extracting pressure 0.8MPa, extracting temperature 40 ℃, extracting time 150min.Under these conditions, the extraction rate of purslane oil was 2.91％.Purslane oil mainly contained 33.19％ linoleic acid(ω-6 polyunsaturated fatty acids)and 31.04％ linolenic acid(ω-3 polyunsaturated fatty acids).Results indicated that purslane oil had remarkable antioxidant activity and radical scavenging efficacy against DPPH · and hydroxyl free radical.关键词
马齿苋全草油/亚临界萃取/GC-MS分析/抗氧化活性Key words
purslane whole plant oil/subcritical fluid extraction/GC-MS/antioxidant activity引用本文复制引用
范少丽,刘璐萍,付学,敬思群..马齿苋全草油的亚临界流体萃取、脂肪酸分析及抗氧化活性[J].食品与发酵工业,2015,41(9):203-208,6.基金项目
2013年新疆维吾尔自治区重点技术创新项目(新经信科装[2013]178号) （新经信科装[2013]178号）
