Synchronous pressing and refining after solid-phase preadsorption technology as a new method for rapeseed oil preparation

文献类型： 外文期刊

第一作者： Wang, Weijun

作者： Wang, Weijun;Yang, Bo;Huang, Fenghong;Zheng, Chang;Li, Wenlin;Liu, Tieliang;Liu, Changsheng

作者机构：

关键词： Phospholipids; Acid value; Oil color; Oil preparation; Polyphenol

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.056； 五年影响因子：6.295 ）

ISSN： 0023-6438

年卷期： 2022 年 168 卷

页码：

收录情况： SCI

摘要： A new method for rapeseed oil preparation named synchronous pressing and refining after solid-phase pre -adsorption technology was investigated. Rapeseed and adsorbents were first mixed evenly to form premixes, and the product oils were then obtained by direct pressing and filtering. The phospholipid content, acid value, a* value, chlorophyll, carotene, polyphenol contents of crude oil increased, while L* and b* values decreased with increasing squeezing chamber temperature. A moderate adsorbent dosage and temperature could improve the refining effects. Silicon dioxide had the highest dephosphorization and deacidification rates of 95% and 42%, respectively, when the dosage was 30 g/kg at 130 degrees C. Activated clay decreased the chlorophyll and carotene contents by 75% and 38%, respectively. Sucrose fatty acid ester had dephosphorization and deacidification rates of 67s% and 41%, respectively. Ascorbic palmitate had a dephosphorization rate of 74% and retained poly-phenols intactly. This technology would not affect the oil yield and could decrease the peroxide value of rapeseed oil. It realized the simultaneous completion of pressing and refining with the advantages of a short preparation time and environmental sustainability.

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