期刊论文

中文

食品工业

1004-471X

2015

36

8

42-45

:公益性行业(农业)科研专项经费项目[大宗粮食加工副产物综合利用技术研究 (201303071):示范

本校为第一机构

为优化高谷维素米糠油精炼工艺,以谷维素保留率、磷脂含量、色泽、米糠油得率等为考察指标,对米糠毛油进行磷酸水化脱胶、脱蜡、脱色、脱臭、物理-化学联合脱酸等精炼处理。研究结果表明,加水量6%时,磷酸水化脱胶效果最好,谷维素保留率为96.5%;温度120℃、时间20 min时,活性白土和活性炭的脱色效果最好,谷维素保留率为90.2%;先通过物理精炼将酸价降低8 mg KOH/g,再采用化学精炼,米糠油得率达到最高值87.2%,谷维素保留率为87.6%。

In order to optimize the refining process of rice bran oil with high concentration of oryzanol, residual content of oryzanol, content of phospholipid, color, and yield of rice bran oil were regarded as the investigated index, then raw rice bran oil was treated by degumming, dewaxing, decoloring, deodorizing, and physical-chemical combined deacidifacation. The results indicated that the optimal water addition of degumming was 6%, and the corresponding residual rate of oryzanol was 96.5%; the optimal temperature and time of decoloring by activated clay and activated carbon were 120 ~C and 20 min...