摘要
研究野生阳荷水溶性膳食纤维的最佳提取工艺,以提取时间、料液比、微波功率和浸提液pH值为影响因素,进行四因素三水平的响应面试验设计,对其提取工艺条件进行优化,结果表明:最佳提取工艺条件为提取时间151.4 s、料液比1:33(g/mL)、微波功率264 W、浸提液pH 3.65,此条件下水溶性膳食纤维的提取率为5.52%,与理论值5.75%相差较小。由此可知,响应面法优化微波辅助提取阳荷水溶性膳食纤维具有时间短、能耗低、提取率高等特点。
The microwave-assisted extraction of water-soluble dietary fiber(SDF) from Zingiber striolatum Diels fruits was optimized by response surface methodology. An experimental design was carried out involving four variables at three levels each. An extraction time of 151.4 s with a microwave power of 264 W using sulphuric acid solution at pH 3.65 as the extraction solvent with a solid-to-solvent ratio of 1:33(g/mL) was found to be optimal. Experiments carried out under the optimized conditions resulted in an extraction yield of 5.52%, agreeing with the predicted value(5.75%). The extraction procedure presented in this study is characterized by time saving, low energy consumption and high extraction efficiency.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2014年第18期57-62,共6页
Food Science
基金
贵州省教育厅特色实验室建设项目(黔教合KY(2011)232)
贵州省高等学校重点支持学科项目(黔教合重点支持学科字(2011)232)
铜仁学院院级科研启动项目(2011(TS1121))
关键词
野生阳荷
水溶性膳食纤维
微波辅助提取
响应面分析法
wild Zingiber striolatum Diels
water-soluble dietary fiber
microwave-assisted extraction
response surface methodology
