Changes in PAH and 3-MCPDE contents at the various stages of Camellia oleifera seed oil refining  

作　　者：Chenggang Cai Guoli Chang Nianhua Zhang Junlin Wang Liyuan Wang Pinggu Wu Dajin Yang 蔡成岗;常国立;张念华;王军淋;王立媛;吴平谷;杨大进(School of Biological and Chemical Engineering,Zhejiang University of Science and Technology,Hangzhou,China;Zhejiang Province Center for Disease Control and Prevention,Hangzhou,China;China National Center for Food Safety Risk Assessment,Beijing,China)

机构地区：[1]School of Biological and Chemical Engineering,Zhejiang University of Science and Technology,Hangzhou,China [2]Zhejiang Province Center for Disease Control and Prevention,Hangzhou,China [3]China National Center for Food Safety Risk Assessment,Beijing,China

出　　处：《Food Quality and Safety》2022年第4期555-561,共7页食品品质与安全研究（英文版）

基　　金：funded by the Key Research and Development Program of Guangdong Province(No.2019B020212001);Zhejiang Basic Public Welfare Research Project(LGN19C200003);the National Key Research and Development Program of China(2018YFC1603600);National Natural Science Foundation of China(No.31871884).

摘　　要：Objectives:Polycyclic aromatic hydrocarbons(PAHs)and 3-monochloropropane-1,2-diol ester(3-MCPDE)were studied in camellia oil.It is important to study the changes in the content of PAHs and 3-MCPDE at different refining stages(from crude oil to the final refined oil product)to elucidate the influence of the refining procedures on their change.Materials and methods:The PAHs and 3-MCPDE in camellia oil from different refining stages(from crude oil to the product)of a plant were analyzed by gas chromatography–mass spectrometry and calculated by the internal standard method.Results:The overall PAH content was(79.64±2.43)μg/kg in crude camellia oil.After refining treatment,the PAH content decreased to(18.75±0.55)μg/kg.The 3-MCPDE content increased during the refining process from 0 mg/kg in the crude oil to 4.62 mg/kg in the refined oil product.Conclusions:This is the first study to simultaneously monitor changes in both PAH and 3-MCPDE contents during the production of camellia oil.These results confirmed the effectiveness of the refining method on PAH removal and the increase in 3-MCPDE at high temperature.It is suggested that novel processing methods or refining parameters need further optimization to decrease the overall concentrations of PAHs and 3-MCPDE in camellia oil.

关 键 词：3-monochloropropane-1 2-diol ester(3-MCPDE) polycyclic aromatic hydrocarbons(PAHs) Camellia oleifera seed oil oil refining process 

分 类 号：TS225.16[轻工技术与工程—粮食、油脂及植物蛋白工程]