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| Optimzation of hydration degumming process of corn oil and change of phytosterol content |
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| KeyWord:corn oil hydration degumming phospholipid content phytosterol content |
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| Abstract: |
| In order to provide a reference for the research of precise and moderate refining of corn oil, the process of hydration degumming of corn oil taking into account the retention of phytosterol was investigated. Taking crude corn oil as raw material, the hydration degumming conditions of corn oil were optimized by single-factor experiment and response surface methodology with phytosterol and phospholipid contents as the indexes.The results showed that the optimal hydration degumming conditions of corn oil based on phytosterol retention were obtained as follows:degumming temperature 58℃, water dosage 4.38% and degumming time 55 min. Under these conditions, the content of phospholipid in degummed oil was 0.76 mg/g and the degummed rate was 92.95%, the content of phytosterol was 1 239.00 mg/100 g, and its retention rate was 83.35%. |
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