Adulteration identification of Hainan camellia (Camellia oleifera Abel.) oil based on comprehensive two-dimensional gas chromatography and quadrupole time-of-flight mass coupled with chemometrics spectrometry
文献类型： 外文期刊
作者： Zheng, Xiaoyan 1 ; Zhang, Shanying 2 ; Ai, Binling 1 ; Yang, Yang 1 ; Zheng, Lili 1 ; Xiao, Dao 1 ; Zhu, Kexue 3 ; Sheng, Zhanwu 4 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Peoples R China
2.Hainan Univ, Sch Trop Agr & Forestry, Sch Agr & Rural Affairs, Sch Rural Revitalizat, Haikou 570228, Peoples R China
3.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Wanning 571533, Peoples R China
4.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China
关键词： Adulteration; GC x GC-Q-TOFMS; Hainan camellia oil; marker
期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （ 影响因子：3.3； 五年影响因子：3.5 ）
ISSN： 0950-5423
年卷期： 2024 年 59 卷 4 期
页码：
收录情况： SCI
摘要： The nutritional value of Hainan camellia oil is incomparable to other places, and Hainan camellia oil is expensive, so unscrupulous businessmen often mix other edible oils into them for illegal profit. This study detected the changes of volatile components in Hainan camellia oil adulterated with five edible oils (peanut, soybean, corn, rapeseed, and sunflower oils) using comprehensive two-dimensional gas chromatography and quadrupole time-of-flight mass spectrometry (HS-SPME-GC x GC-Q-TOFMS). The principal component analysis (PCA) score plot showed that pure Hainan camellia oil (PHCO) and Hainan camellia oil samples were adulterated with other edible oils clearly to identify the adulteration separated from each other. The adulteration of PHCO could be accurately predicted using the developed PCA and OPLS-DA models for concentrations as low as 5%. More importantly, several potential markers were found to identify the impersonate PHCO. Therefore, the volatile compound determination based on HS-SPME-GC x GC-Q-TOFMS proved to be an effective method for detecting adulteration of other edible oils in PHCO.
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