米糠油精炼实践
Refinery practice of rice bran oil
  
DOI:10.12166/j.zgyz.1003-7969/2020.02.005
中文关键词:  米糠油  精炼  先酸后碱  液体油  货架期
英文关键词:rice bran oil  refining  alkali after acid  liquid oil  shelf life
基金项目:
Author NameAffiliation
ZUO Qing GAN Guangsheng SUN Qin ZUO Hui FANG Houkai 1.Jiangsu FAMSUN Oils & Fats Engineering Co., Ltd., Yangzhou 225127Jiangsu,China
2.Anhui Food Engineering Professional College,Hefei 230062,China
3.Guangzhou Xinmas Co.,Ltd., Guangzhou 510350,China
4.Bengbu Jianghuai Grain and Oil Co.,Ltd., Bengbu 233020,Anhui,China 
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中文摘要:
      米糠毛油因含杂多,酸价高、色泽深,使得其精炼困难。以酸价(KOH)25~26 mg/g、过氧化值5 mmol/kg、蜡含量3%~12%、磷含量280~300 mg/kg、糖脂含量6%~7%、固体脂含量7%~9%的米糠毛油为例,采取先酸后碱脱胶、预复脱色、脱蜡、物理脱酸脱臭、脱脂的精炼工艺,可得到一级米糠油,且成品液体油得率为61.6%,反式酸含量为0.9%,货架期大于等于14个月。
英文摘要:
      The rice bran oil is hard to refine for its high impurities,high acid value and deep color. The crude rice bran oil (containing 3%-12% wax,280-300 mg/kg phosphorus,6%-7% sugar ester and 7%-9% solid fat) with the acid value 25-26 mgKOH/g and peroxide value 5 mmol/kg was used as the material, and the refining process of the degumming with alkali after acid processing, pre-and re-bleaching, dewaxing, physical deacidification and deodorization, defatting was described.After refining, the first-grade rice bran oil containing 0.9% trans fatty acid could be obtained. The yield of the finished liquid oil was 61.6%,and the shelf life was greater than or equal to 14 months.
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