期刊论文

中文

中国油脂

1003-7969

2009

34

11

8-11

10.3321/j.issn:1003-7969.2009.11.002

本校为第一机构

以棉仁低温压榨饼为原料,采用己烷浸出脱脂,然后用甲醇浸出脱除棉酚,制备棉籽蛋白粉.以粕中残油率、游离棉酚含量为考察指标,通过单因素实验和正交实验,确定己烷脱脂最佳浸出工艺条件为:浸出温度55 ℃,原料粒度0.75 cm,水分9%以下,料液比1∶1.2,浸出次数8次(每次15 min);甲醇脱酚最佳浸出工艺条件为:浸出温度60 ℃,粒度0.75 cm,料液比1∶1.3,浸出次数6次(每次15 min).在最佳脱脂脱酚工艺条件下,制得棉籽蛋白粉,其残油率为0.52%,游离棉酚含量为250 mg/kg,粗蛋白含量达到52.10%(N×6.25,干基).

Hexane was used as a solvent to extract cottonseed oil from low temperature pressed cottonseed cake,and then methanol was used as a solvent to extract gossypol to prepare cottonseed protein. Through single factor experiments and orthogonal experiments,the optimal conditions of extracting oil were as follows：temperature 55 ℃ , granule size 0.75 em, moisture content of raw material below 9% , ratio of material to liquid 1：1：2,extraction times 8 （once 15 min） ;the optimal conditions of extracting gossypol were as follows ： temperature 60 ℃...