再生白土对大豆油脱色条件的响应面优化及对油脂砷含量的影响  

RESPONSE SURFACE OPTIMIZATION OF SOYBEAN OIL DECOLORIZING CONDITIONS BY REGENERATED CLAY AND ITS EFFECT ON ARSENIC CONTENT OF THE OIL

作　　者：郑彦芳[1] 魏安池[1] 代红丽[1] 宋海东[1] 赵凯艳[1] 

机构地区：[1]河南工业大学粮油食品学院,河南郑州450001

出　　处：《河南工业大学学报（自然科学版）》2014年第5期51-55,79,共6页Journal of Henan University of Technology：Natural Science Edition

摘　　要：利用再生白土对大豆油进行吸附脱色,通过响应面优化确定了再生白土脱色的最佳工艺条件:脱色温度为95℃、再生白土添加量为5.9%、脱色时间为21 min.在该条件下,得到的再生白土的脱色率为95.28%,脱色效果优于新鲜活性白土(94.83%).此外,再生白土中的砷含量(0.191mg/kg)低于活性白土(0.222 mg/kg).再生白土脱色大豆油的砷含量(11.48μg/kg)明显低于活性白土脱色油的砷含量(12.06μg/kg).Soybean oil was decolorized by using regenerated clay; and the optimum technological parameters were determined by the response surface methodology as follows： decolorizing temperature 95 ℃ , regenerated clay amount 5.9% , decolorizing time 21 minutes. Under the optimum conditions, the decolorizing efficiency of the regenerated clay was 95.28% , higher than that of activated clay （94.83%）. In addition, the arsenic content of regenerated clay was 0.191mg/kg, lower than that of activated clay （0.222 mg/kg）. The arsenic content of soybean oil decolorized by the regenerated clay was 11.48 μg/kg, lower than that of the soybean oil decolorized by the activated clay （12.06 μg/kg）.

关 键 词：再生白土 大豆油 脱色 响应面优化 砷含量 

分 类 号：TS229[轻工技术与工程—粮食、油脂及植物蛋白工程]