摘要
菜籽饼是提取植酸的良好原料,植酸具有独特的生物活性。采用草酸钾溶液提取菜籽饼中的植酸,在单因素试验的基础上,通过响应面法优化植酸提取工艺,建立了以草酸钾溶液提取植酸的二次多项数学模型,并得到最佳工艺条件为:pH 8,液料比14∶1,草酸钾溶液浓度0.075 mol/L,提取时间5 h。经过验证试验,在最佳工艺条件下,植酸得率为1.81%。
Rapeseed cake is a good raw material of extracting phytic acid, and phytic acid has unique biological activities. The solution of potassium oxalate was used to extract phytic acid from rapeseed cake. On the basis of single factors experiments, the extraction technic was optimized by response surface methodology, and a quadratic polynomial mathematical model was established. The optimal conditions were as follows： pH 8, ratio of liquid to solid 14： 1, concentration of potassium oxalate 0. 075 mol/L, extraction time 5 h. Under the optimal conditions, the yield of phytic acid was 1.81%.
出处
《中国油脂》
CAS
CSCD
北大核心
2012年第1期65-68,共4页
China Oils and Fats
基金
四川省教育厅青年基金项目(09ZB046)
关键词
菜籽饼
植酸
草酸钾
响应面法
rapeseed cake
phytic acid
potassium oxalate
response surface methodology
