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| Quality of rice bran oil at home and abroad |
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| DOI： |
| KeyWord:rice bran oil physicochemical property oryzanol glycidyl esters chloropropanol esters |
| FundProject:国家重点研发项目（2019YFD1002403）；国家自然科学基金（31930084）；国家杰出青年科学基金（31725022）；佛山市南海区人才创新创业团队（201811070001） |
| Author Name | Affiliation | | LIU Zhuang1, LI Zhong1, LIU Xuan1, LUO Riming2,
WANG Weifei3, WANG Yonghua1,4 | 1.College of Food Sciences and Engineering, South China University of Technology, Guangzhou
510640, China
2.Guangdong YUE-SHAN Special Nutrition Technology Co. , Ltd. , Foshan
528226, Guangdong, China
3.Institute of Sericulture and Agricultural Products Processing,
Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
4.Guangdong
Youmei Institute of Intelligent Bio-manufacturing, Foshan 528226, Guangdong, China |
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| Abstract: |
| In order to improve the quality of rice bran oil on the domestic market, 11 kinds of rice bran oil from home and abroad were selected, and their basic physicochemical properties, composition of fatty acids and glyceride, contents of bioactive components and harmful substances were analyzed. The results showed that the basic physicochemical indexes of rice bran oil from different sources, such as acid value, peroxide value and color met the requirements of national standards. The fatty acid composition of rice bran oil from different sources had little difference, but the composition of glyceride had obvious difference. In addition, the content of bioactive components in rice bran oil from different sources varied greatly. The contents of oryzanol, phytosterol, tocopherol and squalene in 11 kinds of rice bran oil ranged from 3 200 mg/kg to 26 000 mg/kg, 224 mg/kg to 5 197 mg/kg, 35 mg/kg to 400 mg/kg and 1 mg/kg to 12 mg/kg, respectively. The contents of plasticizer and benzo(a)pyrene in 11 kinds of rice bran oil all met the requirements of national standards, however the contents of 3-chloropropanol esters and glycidyl esters in rice bran oil from domestic market far exceeded the EU standard. Domestic rice bran oil processing enterprises should improve the production process to reduce the production of chloropropanol esters and glycidyl esters in the refining process. |
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