食品工业科技Issue(12)：338-341,4.
超声波辅助提取黑米中抗氧化物质
Ultrasound-assisted extraction of antioxidants of black rice
摘要
Abstract
Ethanol was used for extracting antioxidants of black rice under ultrasound assistance. Based on the anthocyanin content,DPPH free radical clearance rate,total antioxidant capacity（TAC）,the single factor method was used for the optimization of ultrasonic extraction. The extracted result was reflected by three different aspects indicators. Results showed that：extraction time was reduced by ultrasonic-assisted. The results showed that the optimal extraction conditions were：ultrasonic power 280W,extraction time 20min,70% ethanol concentration,liquid- solid ratio（mL/mg）20∶ 1,extraction temperature 50℃. Then the anthocyanin content was 12. 56mg/g,DPPH free radical clearance rate was 54. 41%,TAC was 52. 38u/mL.关键词
超声波辅助提取/黑米/花色苷Key words
ultrasonic-assisted extraction/black rice/anthocyanins分类
轻工纺织引用本文复制引用
张志辉,于国萍..超声波辅助提取黑米中抗氧化物质[J].食品工业科技,2011,(12):338-341,4.
