期刊论文、会议论文

中文

中国油脂

1003-7969

2012

37

4

56-59

中国粮油学会油脂分会第二十届学术年会暨产品展示会

中国粮油学会油脂分会第二十届学术年会暨产品展示会论文集

2011-09-01

山东邹平

中国粮油学会

10.3969/j.issn.1003-7969.2012.04.014

(Q20081808):湖北省教育厅科学研究项目

本校为第一机构

为实现菜籽粕的综合开发利用,研究了一种从菜籽预榨-浸出粕中两步提取植酸的工艺。考察了酸洗pH、酸洗时间、碱提pH和碱提乙二胺四乙酸二钠(EDTA)浓度等对植酸提取的影响。将经过复合纤维素酶水解的菜籽粕在pH 5.0和50℃下酸洗3 h获得酸洗液,然后用EDTA浓度0.1mol/L的碱性溶液在pH 12.0和50℃下碱提酸沉获得乳清液,经以上两步可将菜籽粕中的植酸基本提取完全。将提取液中的粗植酸经氢氧化钙沉淀并酸化,再经离子交换可获得纯度为69.96%、提取率为58.0%的植酸产品。

To realize fully utilization of rapeseed meal, a two - step process for extraction of phytic acid from prepress - solvent extracted rapeseed meal was established. The effects of key parameters on phytic acid extraction, including pH of acid solution, duration of acid solution, pH and ethylene diamine tetraace- tic acid （EDTA） concentration of alkaline solution for extraction were investigated. With an acid solution extracting step at pH 5.0 and 50 ℃ for 3 h and an alkaline solution extracting step at pH 12.0 and 50℃ with the supplement of 0...