期刊论文

中文

食品与机械

1003-5788

2014

30

3

185-189,193

10.3969/j.issn.1003-5788.2014.03.045

湖南省自然科学常德联合基金（编号：13JJ9006） 湖南省科技计划项目（编号：2014WK3020） 长沙市科技计划项目（编号：K1308212-11） 常德市科学技术研发资金（编号：12013J164） 长沙理工大学研究生科研创新项目

本校为第一机构

通过对传统水代法提取茶籽油工艺的改进,得到水代法提取鲜果茶籽油的新工艺。运用响应面法对液料比、浸提温度、水相pH值、浸提时间等影响茶籽油得率的主要因素进行分析优化。结果表明,水代法提取鲜果茶籽油的最佳工艺条件为液料比6 : l(m : m)、pH值4. 6、在90 ℃条件下糊化25 min、浸提温度80 ℃、浸提时间2.8 h。该条件下,粒度20?100 μm的茶籽仁粉的提油效率达到85. 86%,所制备的茶籽毛油基本达到中国一级压榨茶籽油标准,而且毛油中VE和角鲨烯含量分别达到169. 8 mg/kg和107. 5 mg/kg、苯并(a)芘含量低于中国限量(10 μg/kg)。

Fresh camellia seed oil was extracted by a new technology improved from traditional aqueous extraction process. Based on the single factor experiments, the ratio of liquid to material, extracting temperature, aqueous solution pH and extracting time which were mainly affected the oil extraction efficiency were investigated and optimized by response surface methodology. The results showed that the optimal extraction conditions for extracting fresh camellia seed oil by aqueous extraction method were as followed： ratio of liquid to material 6 ： 1...