Abstract: The degreased rice bran was used as the raw materials,calcium phytate was produced by acid and alkaline neutralization(precipitation).The effects of acid kinds,the ratio of rice bran to extractant,extraction concentration,temperature,time,pH in neutralization reaction with base were investigated on the yield of calcium phytate by single factors experiments.The extraction was optimized by orthogonal experiments.The results showed that the influential factors order is: extraction temperature > pH in the process of alkaline neutralization > the ratio of rice bran to extractant > extraction time.By using 3% hydrochloric acid as the extracting agent,the best conditions of extraction phytin were as follows: the ratio of rice bran to extractant 1∶ 9,extraction temperature 35 ℃,extraction time 3 h,and pH in the process of alkaline neutralization 7.5.Under these conditions,the yield of calcium phytate was 1.5%.
曹春艳,赵永华. 米糠中提取植酸钙[J]. 食品与发酵工业, 2011, 37(06): 196-200.
Cao Chun-yan,Zhao Yong-hua. Study on Technological of Extracting Phytin from Rice Bran[J]. Food and Fermentation Industries, 2011, 37(06): 196-200.