Adsorption behavior of free fatty acids and micro-components in rapeseed oil on alkaline microcrystalline cellulose  

作　　者：Weijun Wang Changsheng Liu Fenghong Huang Wenlin Li Bo Yang 

机构地区：[1]Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China [2]Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Wuhan, China

出　　处：《Oil Crop Science》2017年第4期225-236,共12页中国油料作物学报(英文版）

摘　　要：Alkaline microcrystalline cellulose (AMC) was used as adsorption agent in deacidification in this paper. Changes of isothermal adsorption of free fatty acids (FFA) and micro-components (α-tocopherol and β-sitosterol) in rapeseed oil on AMC were investigated. The results showed that difference in initial micro-component contents would not change adsorption characteristics of AMC to FFA. Adsorption characteristics were always as the following: Langmuir equation was more suitable to static adsorption process of AMC to FFA than Freundlich equation; moderate temperature (30-40oC) was advantageous to adsorption; adsorption was a preferential one. The highest retention rate of α-tocopherol and β-sitosterol during absorptive deacidification by AMC were 99.5% and 91.5% respectively. Therefore, AMC was suitable for adsorption deacidification application of rapeseed oil.

关 键 词：ALKALINE MICROCRYSTALLINE cellulose DEACIDIFICATION ISOTHERMAL adsorption free FATTY acids (FFA) micro-components 

分 类 号：TS221[轻工技术与工程—粮食、油脂及植物蛋白工程]