Chlorophylls, lutein and beta-carotene play great but different roles in colour of rapeseed oil
文献类型： 外文期刊
作者： Yao, Yingzheng 1 ; Xuan, Pu 1 ; Xiong, Wei 1 ; Zhao, Ling 1 ; Xu, Xia 1 ; Liang, Qiang 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Grain & Oil Proc Res Ctr, Inst Agroprod Proc Sci & Technol, Chengdu 610066, Peoples R China
期刊名称：COLORATION TECHNOLOGY （ 影响因子：2.049； 五年影响因子：2.078 ）
ISSN： 1472-3581
年卷期：
页码：
收录情况： SCI
摘要： Natural colourants have great effects on the colour of vegetable oil. A series of colourant-oil simulation systems were constructed to study the effects of chlorophyll, lutein and beta-carotene and their interactions on the colour of rapeseed oil. CIE L*a*b* and Lovibond RYBN colour codes were used to evaluate the colour of the simulation systems. There were good negative linear correlations between the concentrations of the three natural colourants and L* value in both single colourant-oil and two colourants-oil simulation systems. Chlorophyll had greater effect on lightness of rapeseed oil than lutein and beta-carotene. The contribution of the two carotenoids to the yellow colour was greater than that of chlorophyll. Lutein and beta-carotene contributed positively to the red colour of rapeseed oil. They had superposition effect on colour of rapeseed oil, and beta-carotene might contribute more to the colour than lutein. It provided a method to evaluate the contribution of colourant to the colour and a possibility to regulate oil colour in edible oil industry.
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