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| Enzymatic degumming of crude soybean oil |
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| DOI： |
| KeyWord:enzymatic degumming phospholipase crude soybean oil oil yield phosphorus content |
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| Author Name | Affiliation | | LI Shanshan1, CHENG Qian2,3, XIE Liang2,3, XUE Feiyan1, WANG Fengyan2,3, WANG Manyi2,3 | 1.College of Bioscience and Resources Environment,Beijing University of Agriculture, Beijing 102206,China
2.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
3.Jiangsu Province Center of Cooperative Innovation for Modern Grain Circulation and Security, Nanjing 210023,China |
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| Abstract: |
| In order to promote the industrial application of enzymatic degumming, seven batches of crude soybean oil were degummed using PLA1 single enzyme and PLC combined with PLA1 double enzyme, and the oil yield, oil sediment yield, phosphorus content and acid value of degummed oil were determined and compared with the traditional hydration method to investigate the effect of enzymatic degumming of crude soybean oil. The results showed that enzymatic degumming significantly improved the oil yield,and the increase of oil yield was 0.86 and 1.41 pecentage points when using PLA1 single enzyme degumming and PLC combined with PLA1 double enzyme degumming respectively compared with hydration degumming,and the double enzyme degumming also showed a significant increase in oil yield compared with single enzyme degumming, with an average increase of 0.55 percentage points. The enzymatic degumming could reduce the phosphorus content of soybean oil to less than 10 mg/kg, and even to about 5 mg/kg. The oil sediment yield of enzymatic degumming was significantly lower than that of hydration method, the single and double enzyme degumming decreased by 0.72 and 1.22 pecentage points respectively, and the oil sediment yield of double enzyme degumming decreased by 0.49 pecentage points on average compared with single enzyme degumming. The acid values of the enzymatic degumming were both elevated compared with the traditional hydration method, by 0.63 mgKOH/g and 0.61 mgKOH/g for single and double enzyme degumming respectively, with no significant difference between double and single enzyme degumming. Enzymatic degumming can significantly improve the oil yield and reduce the phosphorus content in degummed oil to less than 10 mg/kg. Enzymatic degumming can be directly combined with physical refining process. |
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