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| Optimization and quality analysis of SiO2 degumming process for fragrant rapeseed oil |
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| DOI： |
| KeyWord:fragrant rapeseed oil SiO2 degumming phospholipid Canolol |
| FundProject: |
| Author Name | Affiliation | | ZENG Shiqin1, LIANG Qiang2,3, LI Yuncheng1, ZHAO Ling2, XU Xia2, XIONG Wei2,3, XUAN Pu2,3, YAO Yingzheng1,2,3 | 1.College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
2.Institute of Agro-products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
3.Institute of Food and Nutrition Health, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China |
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| Abstract: |
| To further verify the feasibility of SiO2 degumming process, the crude fragrant rapeseed oil was taken as the object of study, and the phospholipid removal rate was used as the evaluation index to optimize the degumming process using single factor experiment and response surface methodology. The quality of the degummed fragrant rapeseed oil obtained by SiO2 degumming process was compared with that obtained by the traditional hydration degumming process. The results showed that the optimal phospholipid removal rate reached 86.1% when the SiO2 dosage was 2.25%, the degumming temperature was 35℃, the degumming time was 22 min, and the stirring speed was 107 r/min, and the phospholipid content in the degummed oil was 1 719.61 mg/kg. There was no significant difference in acid value, peroxide value, and moisture and volatile content between SiO2-degummed oil and hydration-degummed oil (p>0.05). The contents of total phenols and Canolol in the SiO2-degummed oil was significantly lower than that in the hydration-degummed oil(p<0.05), while the phospholipid removal rate and lightness of SiO2-degummed oil were significantly higher than those of hydration-degummed oil (p<0.05). SiO2 degumming technique may have a better degumming effect than the traditional hydration degumming for fragrant rapeseed oil with a high proportion of non-hydrated phospholipids, and it can be used as a supplement to the traditional hydration degumming method. |
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