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| Quality analysis of commercially available grade 1 soybean oils after the national standard revision |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.230336 |
| KeyWord:soybean oil physicochemical properties hazardous factor nutritional index |
| FundProject:十四五”国家重点研发计划项目（2021YFD210030403） |
| Author Name | Affiliation | | CHEN Yan1, WANG Xiangyu1, YOU Mengyuan1, LIU Xinyu1, LI Xiaolong1,
SUN Chengguo2,WANG Fengyan1 | (1.Beijing Engineering Laboratory of Geriatric Nutrition Food Research, Beijing Key Laboratory of
Nutrition & Health and Food Safety, COFCO Nutrition & Health Research Institute, Beijing
102209, China
2.COFCO Oil Holdings Co. , Ltd. , Beijing 102200, China) |
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| Abstract: |
| In order to understand the current processing situation of soybean oil, based on the control requirements of soybean oil related indexes in the national standards, the physicochemical indexes, nutritional indexes and hazardous substance indexes of 12 brands of commercially available grade 1 soybean oils were analyzed. The results showed that the acid value of the 12 commercially available grade 1 soybean oils ranged from 0.054 mgKOH/g to 0.183 mgKOH/g, the peroxide value ranged from 0.59 mmol/kg to 2.01 mmol/kg, and the colour were light. The mean values of the vitamin E, sterol, polyphenol and squalene contents were 113.06 mg/100 g, 3 028 mg/kg, 4.82 mg/kg and 53.71 mg/kg, respectively. The trans fatty acid content ranged from 0.25% to 0.92%. Among the 12 commercially available soybean oils, only 1 sample met the requirement of zero trans fatty acid (less than 0.3%). the content of 3-chloropropanol esters ranged from 0.23 mg/kg to 0.57 mg/kg, with an average value of 0.38 mg/kg,and the content of glycidyl esters ranged from non-detected to 3.42 mg/kg, with an average value of 1.0 mg/kg, of which the glycidyl esters content of 3 samples was higher than the EU limit. The content of polycyclic aromatic hydrocarbons ranged from non-detected to 8.8 μg/kg, with an average value of 4.77 μg/kg, and the content of benzo(a)pyrene ranged from non-detected to 1.4 μg/kg, with an average value of 0.61 μg/kg. In summary, soybean oil manufacturers should adhere to the principle of moderate processing, retaining the nutrients and reducing the generation of hazardous substances as far as possible while ensuring that the product quality meets the required standards. |
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