摘要
以信阳毛尖茶叶沫为原料,优化儿茶素的浸提条件,考察乙醇浓度、时间、温度和液料比对浸提儿茶素的影响。采用响应曲面法建立回归模型为:Y=0.500429-0.047625X1+0.021625X3-0.012054X21+0.03775X1X3-0.0325X2X3,优化得到最佳浸提条件为:乙醇浓度70%、浸提时间20min、浸提温度80℃和液料比15:1(mL:g)。
Xinyang tea was used as raw material,the extraction conditions of catechins were studied. Response surface method（RSM） was employed in the present work and an equation for the extraction of catechins was：Y=0.500429-0.047625X1＋0.021625X3-0.012054X1^2＋0.03775X1X3-0.0325X2X3. The effects of temperature, time, alcohol concentration and solvent-material ratio on the extraction of catechins were analyzed. The optimal conditions were alcohol concentration 70%, time 20min, temperature 80℃ and solvent-material ratio 15：1.
出处
《食品工业科技》
CAS
CSCD
北大核心
2008年第7期186-187,191,共3页
Science and Technology of Food Industry
基金
南阳理工学院青年基金
关键词
响应曲面法
浸提
儿荼素
response surface methodology
extraction
catechins
