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Determination of the Geographical Origin of Kimchi by (1)H NMR-Based Metabolite Profiling.
MedLine Citation:
PMID:  22972342     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Kimchi is a well-known traditional Korean food. Its geographical origins can be determined by its biochemical composition. This study identified the biochemical compositions of kimchi extracts from Korea and China by (1)H nuclear magnetic resonance (NMR) spectroscopy followed by multivariate data analysis. Principal component analyses (PCA) clearly discriminated between extracts prepared in the two countries. The identified metabolites, including amino acids, organic acids, sugars, and ethanol, contributed to discriminating the geographical origin of kimchi extracts. Furthermore, differences in composition by origin were predicted with high accuracy in external validation models. These results establish biochemical profiles for kimchi extracts, and indicate that metabolomics can be used in the discrimination of food origins.
Authors:
Jahan Kim; Youngae Jung; Yeon-Sik Bong; Kwang-Sik Lee; Geum-Sook Hwang
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-07
Journal Detail:
Title:  Bioscience, biotechnology, and biochemistry     Volume:  -     ISSN:  1347-6947     ISO Abbreviation:  Biosci. Biotechnol. Biochem.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205717     Medline TA:  Biosci Biotechnol Biochem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Integrated Metabolomics Research Group, Seoul Center, Korea Basic Science Institute.
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