Journal
FOOD CHEMISTRY
Volume 240, Issue -, Pages 239-244Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.07.106
Keywords
Ginger; UPLC-Q/TOF-MS-based metabolomics approach; Ghana; China; Chemical markers
Funding
- National Natural Science Foundation of China [91639115, 81421005, 81573642]
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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.
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