Comparison of Physicochemical Properties and Metabolite Profiling Using <sup>1</sup>H NMR Spectroscopy of Korean Wheat Malt

The objective of this study was to compare the physicochemical, enzymatic, and metabolic properties of two control wheat malts imported from Germany and the US to those of malts made from three Korean wheat varieties: <i>Triticum</i><i>aestivum</i> L., var. <i>Anzunbaen...

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Bibliographic Details
Main Authors: Yang Soo Byeon, Dabeen Lee, Young-Shick Hong, Seung-Taik Lim, Sang Sook Kim, Han Sub Kwak
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/9/10/1436
Description
Summary:The objective of this study was to compare the physicochemical, enzymatic, and metabolic properties of two control wheat malts imported from Germany and the US to those of malts made from three Korean wheat varieties: <i>Triticum</i><i>aestivum</i> L., var. <i>Anzunbaengi</i>, <i>Jokyung</i>, and <i>Keumkang</i>. The qualities and enzyme activities of the Korean wheat malts were generally similar to those of the control wheat malts. The Korean wheat malts had slightly lower diastatic power and enzyme activities related to saccharification. The analysis of metabolites in the wheat malt samples was performed using <sup>1</sup>H nuclear magnetic resonance (NMR) metabolomics, which identified 32 metabolites that differed significantly among the samples. Most amino acids and lipids were more abundant in the Korean wheat malts than in the control wheat malts. These differences among malts could influence the quality and flavor of wheat beers. Further brewing studies are necessary to identify the association between beer quality and individual malt metabolites.
ISSN:2304-8158