| 左青
甘光生
孙勤
左晖
方厚凯.米糠油精炼实践[J].中国油脂,2020,45(2):21~23.[ZUO Qing
GAN Guangsheng
SUN Qin
ZUO Hui
FANG Houkai.Refinery practice of rice bran oil[J].China Oils and Fats,2020,45(2):21~23.] |
| 米糠油精炼实践 |
| Refinery practice of rice bran oil |
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| 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: |
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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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