中国食品添加剂Issue(1)：87-94,8.
枣叶黄酮微波-离子液体辅助提取工艺优化及其抗氧化活性研究
Study on optimization of microwave-ionic liquids assisted extraction and antioxidant activity of flavonoids from Ziziphus jujuba Mill.Leaf
摘要
Abstract
Using Ziziphus jujuba Mill.Leaf as the material,extraction yield as the index,the extraction conditions of the flavonoids was optimized based on the single factor analysis and orthogonal experimental design,and the antioxidant activities were also studied.The results showed that the optimal extraction conditions of the flavonoids were as follows:microwave power 195 W,microwave time 12 min,ethanol concentration 60％,solid-liquid ratio 1:25 (g/mL),concentration of ionic liquid 1-hexyl-3-methylimidazolium tetrafluoroborate 0.6mol/L,extraction time 2 times.Under these conditions,the mean of flavonoids yield is 3.20％.The results of antioxidant activities were showed that the flavonoids had strong scavenging effects on DPPH radical,OH radical and nitrite ion.IC50 values were 0.181 mg/mL,0.080mg/mL,0.039mg/mL,respectively,which indicated that the flavonoids from Ziziphus jujuba Mill.Leaf has strong antioxidant activitiy.关键词
枣叶/黄酮/微波/离子液体/抗氧化Key words
Jujuba Leaf/flavonoids/Microwave/Ionic liquid/antioxidant activity分类
农业科技引用本文复制引用
杨洁,关梦玉,吴霞,闫唯,赵三虎,赵二劳..枣叶黄酮微波-离子液体辅助提取工艺优化及其抗氧化活性研究[J].中国食品添加剂,2018,(1):87-94,8.基金项目
山西省自然科学基金项目(201601D102015) （201601D102015）
国家级大学生创新创业训练计划项目(201610124001) （201610124001）
忻州师范学院博士科研启动项目(2016). （2016）
