A comparative UPLC-Q/TOF-MS-based metabolomics approach for distinguishing Zingiber officinale Roscoe of two geographical origins

•A UPLC-Q/TOF-MS-based metabolomics approach was used.•Forty batches of fresh ginger from Ghana and China were assessed.•PCA and OPLS-DA showed differences between the ginger from both countries.•Sixteen differential metabolites were found and six identified as the chemical markers responsible for t...

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Bibliographic Details
Published in:Food chemistry 2018-02, Vol.240, p.239-244
Main Authors: Mais, Enos, Alolga, Raphael N., Wang, Shi-Lei, Linus, Loveth O., Yin, Xiaojin, Qi, Lian-Wen
Format: Article
Language:English
Subjects:
Africa, Western
Chemical markers
China
Chromatography, High Pressure Liquid
Ghana
Ginger
Mass Spectrometry
Metabolomics
UPLC-Q/TOF-MS-based metabolomics approach
Zingiber officinale
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Summary:•A UPLC-Q/TOF-MS-based metabolomics approach was used.•Forty batches of fresh ginger from Ghana and China were assessed.•PCA and OPLS-DA showed differences between the ginger from both countries.•Sixteen differential metabolites were found and six identified as the chemical markers responsible for the discrimination. Ginger, the rhizome of Zingiber officinale Roscoe, is a popular spice used in the food, beverage and confectionary industries. In this study, we report an untargeted UPLC-Q/TOF-MS-based metabolomics approach for comprehensively discriminating between ginger from two geographical locations, Ghana in West Africa and China. Forty batches of fresh ginger from both countries were discriminated using principal component analysis and orthogonal partial least squares discrimination analysis. Sixteen differential metabolites were identified between the gingers from the two geographical locations, six of which were identified as the marker compounds responsible for the discrimination. Our study highlights the essence and predictive power of metabolomics in detecting minute differences in same varieties of plants/plant samples based on the levels and composition of their metabolites.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2017.07.106