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International Journal of Medicinal Mushrooms
Fator do impacto: 1.423 FI de cinco anos: 1.525 SJR: 0.431 SNIP: 0.716 CiteScore™: 2.6

ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344

Volumes:
Volume 22, 2020 Volume 21, 2019 Volume 20, 2018 Volume 19, 2017 Volume 18, 2016 Volume 17, 2015 Volume 16, 2014 Volume 15, 2013 Volume 14, 2012 Volume 13, 2011 Volume 12, 2010 Volume 11, 2009 Volume 10, 2008 Volume 9, 2007 Volume 8, 2006 Volume 7, 2005 Volume 6, 2004 Volume 5, 2003 Volume 4, 2002 Volume 3, 2001 Volume 2, 2000 Volume 1, 1999

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.v18.i5.50
pages 413-424

Quantification of Water-Soluble Metabolites in Medicinal Mushrooms Using Proton NMR Spectroscopy

Yu-Chang Lo
Department of Food Science and Biotechnology, National Chung Hsing University (NCHU), Taichung, Taiwan, R.O.C.; NCHU-UCD Plant and Food Biotechnology Center, NCHU, Taichung, Taiwan, R.O.C.; Agricultural Biotechnology Center, NCHU, Taichung, Taiwan, R.O.C.
Shih-Chang Chien
The Experimental Forest Management Office, NCHU, Taichung, Taiwan, R.O.C
Darya O. Mishchuk
Department of Food Science and Technology, UCD, Davis, CA 95616, U.S.A.
Carolyn M. Slupsky
Department of Nutrition, University of California at Davis (UCD), Davis, CA 95616, U.S.A.; Department of Food Science and Technology, UCD, Davis, CA 95616, U.S.A.
Jeng-Leun Mau
Department of Food Science and Biotechnology, National Chung Hsing University, No. 145 Hsing-Da Road, Taichung 40227, Taiwan

RESUMO

The water-soluble metabolites in 5 mushrooms were identified and quantified using proton nuclear magnetic resonance (NMR) spectroscopy and software for targeted metabolite detection and quantification. In total, 35 compounds were found in Agaricus brasiliensis, 25 in Taiwanofungus camphoratus, 23 in Ganoderma lucidum (Taiwan) and Lentinus edodes, and 16 in G. lucidum (China). Total amounts of all identified metabolites in A. brasiliensis, T. camphoratus, G. lucidum, G. lucidum (China), and L. edodes were 149,950.51, 12,834.18, 9,549.09, 2,788.41, and 111,726.51 mg/kg dry weight, respectively. These metabolites were categorized into 4 groups: free amino acids and derivatives, carbohydrates, carboxylic acids, and nucleosides. Carbohydrates were the most abundant metabolites among all 4 groups, with mannitol having the highest concentration among all analyzed metabolites (848–94,104 mg/kg dry weight). Principal components analysis (PCA) showed obvious distinction among the metabolites of the 5 different kinds of mushrooms analyzed in this study. Thus PCA could provide an optional analytical way of identifying and recognizing the compositions of flavor products. Furthermore, the results of this study demonstrate that NMRbased metabolomics is a powerful tool for differentiating between various medicinal mushrooms.


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