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Metabolomic profiling of Cheonggukjang during fermentation by 1H NMR spectrometry and principal components analysis

Title
Metabolomic profiling of Cheonggukjang during fermentation by 1H NMR spectrometry and principal components analysis
Authors
Choi H.-K.Yoon J.-H.Kim Y.-S.Kwon D.Y.
Ewha Authors
김영석
SCOPUS Author ID
김영석scopus
Issue Date
2007
Journal Title
Process Biochemistry
ISSN
1359-5113JCR Link
Citation
vol. 42, no. 2, pp. 263 - 266
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Metabolomic analysis of extracts of Cheonggukjang was carried out using 1H nuclear magnetic resonance (NMR) spectrometry and principal components analysis (PCA). The major peaks in the 1H NMR spectra of the 50% methanol fraction were assigned to isoleucine/leucine, lactate, alanine, acetic acid, citric acid, choline, fructose, sucrose, tyrosine, phenylalanine and formic acid. The first two principle components (PC1 and PC2) of the 1H NMR spectra of the aqueous fraction allowed discrimination of Cheonggukjang extracts of samples obtained after different periods of fermentation. These two principal components cumulatively accounted for 98.5% of the total variation of all variables. The major peaks within the 1H NMR spectra that contributed to discrimination of different samples were assigned to isoleucine/leucine, lactate, acetic acid, citric acid, choline, fructose, glucose and sucrose. This metabolomic analysis of samples of Cheonggukjang extract demonstrates that NMR and PCA can be used to obtain standard trajectory plots and related information for Cheonggukjang and other fermented foods. © 2006 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.procbio.2006.07.014
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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