摘要
通过单因素试验对凤仙花色素提取的条件进行了研究,确定了无水乙醇作为浸提剂(pH值1)、浸提时间1.5 h、浸提温度50℃、料液比1∶70、浸提1次的效果较佳。进一步用正交试验优化了提取工艺,结果表明:以无水乙醇为浸提剂,调节pH值为1,添加凤仙花粉末与浸提剂的比例为1∶60,恒温保持40℃浸提1.5 h,最大提取率为2.84。
The extraction conditions of natural pigment from Impatiens balsamina L. were investigated by single factor experiment. The results were： ethanol （pH 1 ） of extraction solvent, 1.5 h of extraction time, 50 ℃ of extraction temperature, and 1 ： 70 of solid-liquid ratio by extracting for one time, respectively. Furthermore, the extraction conditions were optimized by orthogonal experiment, and the results were demonstrated as： ethanol （pH 1 ）of extraction solvent, 60℃ of extraction temperature, 1.5 h of extraction time, respectively. And the extraction rate of pigment was reached to 2.84.
出处
《天津农学院学报》
CAS
2017年第2期19-21,共3页
Journal of Tianjin Agricultural University
基金
2015年天津市大学生创新创业计划训练项目"天然指甲着色剂的开发与应用"(20151006109)
关键词
凤仙花
天然色素
提取工艺
优化
Impatiens balsamina L.
natural pigment
extract method
optimization
