摘要
研究了有机溶剂微波萃取枸杞中的类胡萝卜素.单因素实验结果表明,微波萃取枸杞色素的最佳单因素依次为石油醚-丙酮体积分数φ=1∶1的混合溶剂,微波火力中火,萃取时间20s,料液比为1∶3,萃取3次.正交实验结果表明,微波萃取枸杞色素的最佳工艺条件为:用石油醚-丙酮体积分数φ=1∶1的混合溶剂浸提,料液比为1∶4,在微波火力中火下萃取20s,反复3次.在此条件下,枸杞中类胡萝卜素含量可达14.23mg/L.
In this paper, studies about the microwave extraction of carotenoid from Fructus lycii using organic solvent were introduced. Results showed that the optimum conditions for single factor experiments were as follows： petroleum ether-acetone mixtures （φ=1：1）, middle microwave power, 20 s/time, 1 ： 3 of ratio of solid to ethanol solution and 3 times. Results of orthogonal experiments showed that the optimum extraction condition was 1 ： 4 of ratio of solid to ethanol solution, 20 s/time, middle microwave power, 3 times with petroleum ether-acetone （φ=1：1）. Under these conditions, total carotenoid content of Fructus lycii was 14.23 mg/L.
出处
《湘潭大学自然科学学报》
CAS
CSCD
北大核心
2008年第2期48-51,71,共5页
Natural Science Journal of Xiangtan University
基金
湖南省自然科学基金项目资助(08JJ6020)
湘潭大学科研启动费项目(06QDZ11)
湘潭大学校级交叉项目(06IND01)资助
关键词
枸杞
类胡萝卜素
微波萃取
Fructus lycii
carotenoid
microwave extraction
