文献类型: 外文期刊
作者: Yao, Yingzheng 1 ; Liu, Changsheng 1 ; Xiong, Wei 2 ; Liang, Qiang 2 ; Xuan, Pu 2 ; Zeng, Xiaodan 2 ; Zeng, Shiqin 2 ; Zh 1 ;
作者机构: 1.Chinese Acad Agr Sci, Oil Crops Res Inst,Minst Agr, Oil Crops & Lipids Proc Technol Natl & Local Join, Hubei Key Lab Lipid Chem & Nutr,Key Lab Oil Seed, Wuhan 430062, Peoples R China
2.Sichuan Acad Agr Sci, Inst Agroprod Proc Sci & Technol, Chengdu 610066, Peoples R China
关键词: Oil refining; Phospholipids; Phenolic compounds; Vinylsyringol; Oil color; E-nose
期刊名称:JOURNAL OF CLEANER PRODUCTION ( 影响因子:9.297; 五年影响因子:9.444 )
ISSN: 0959-6526
年卷期: 2020 年 268 卷
页码:
收录情况: SCI
摘要: Traditional degumming techniques used in the edible oil industry require high temperatures and consume more energy. As a result, green refining techniques are required to be developed. Rapeseed oil is one of the preferred edible oils used in southwest China because of its unique flavor. However, the dark color of the oil is an element of concern. It is important to find a refining method that can improve the color of the oil while retaining its flavor. The main purpose of this study was to evaluate a low-energy consumption degumming method that used different dosages (0.5%, 1.5%, 2.5%, and 3.5% w/w) of silicon dioxide when applied to rapeseed oil. The concentration of phospholipids, total phenolic content including that of canolol, and the color, flavor profile, acid value, chlorophyll content, and oxidative stability of the rapeseed oil were analyzed to evaluate the degumming effect of silicon dioxide. It was observed that the adsorption by silicon dioxide eliminated up to 85% of phospholipids from crude rapeseed oil, retained up to 96% of the total phenolic content, and had little effect on the amount of canolol, which is the dominant phenolic compound in rapeseed oil. In addition, the method improved the color of rapeseed oil by increasing the L*/neutral value and decreasing the a*/red values, and had little effect on the flavor according to E-nose. Using silicon dioxide as the adsorbent reduced the acid value and chlorophyll content of the oil, apart from largely shortening its induction period. When the recommended silicon dioxide dosage of 1.5% (w/w) was used, phospholipids, total phenolic content, a*, and red values decreased by 81%, 5%, 38.2%, and 12.7%, while the L* and neutral values increased by 9.8% and 28.6%. This technology is economical and environmentally friendly due to its mild reaction conditions and zero wastewater production. It provided a new strategy and showed a great potential in the degumming of rapeseed oil. (C) 2020 Elsevier Ltd. All rights reserved.
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