食品与机械2017，Vol.33Issue(11)：179-183,5.
银杏叶色素超声辅助提取工艺优化及其稳定性研究
Study on the optimization of ultrasonic assisted extraction and stability of pigments obtained from leaves of Ginkgo biloba L.
摘要
Abstract
The pigments were obtained from leaves of Ginkgo biloba L.using ultrasound-assisted ethanol extraction method.The main influence factors of pigments extraction were selected from the results of single factor test and optimized by orthogonal experimental design,and its stability to pH,temperature,metal ions and light was studied.The optimum extraction technology was using the ethanol concentration of 95％,with the pH value 6.0,extracted at 60 ℃ for 2 h.Under this condition,the absorbance of pigments was 0.831.The stability results indicated that the pigments was stable in acidic and alkine media,and was stable to Na+ and Ca2+,but unstable to Fe3+,Cu2+ and Mg2+ relatively.It would accelerate the pigments decomposition when the temperature was higher than 70 ℃,and it had instability to the sunlight and indoor light,so it should be stored away from light.关键词
银杏叶/色素/提取/稳定性Key words
Ginkgo biloba leaves/pigments/extraction/stability引用本文复制引用
李玲,闫旭宇..银杏叶色素超声辅助提取工艺优化及其稳定性研究[J].食品与机械,2017,33(11):179-183,5.基金项目
湖南省教育厅科学研究项目(编号:17B108) （编号:17B108）
湖南科技学院科学研究项目(编号:16XKY065) （编号:16XKY065）
