| Screening and identification of precursor compounds of dimethyl trisulfide (DMTS) in Japanese sake. | |
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MedLine Citation:
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PMID: 19090758 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Dimethyl trisulfide (DMTS) is involved in the unpalatable aroma of stale sake, called "hineka"; however, the mechanism underlying the formation of DMTS during the storage of sake has not been elucidated. This paper investigates the precursors of DMTS in sake. An experiment using [methyl-d(3)]-methionine showed that Strecker degradation of methionine plays a minor role in the formation of DMTS. Separation of components in sake by cation exchange resin revealed that DMTS precursors are present in the acidic/neutral fraction rather than in the basic one. Purification of the DMTS precursor compounds was carried out through several chromatographic steps, measuring DMTS-producing potential as an index. High-resolution ESI-MS and 1D/2D NMR experiments enabled the identification of one of the precursor compounds as 1,2-dihydroxy-5-(methylsulfinyl)pentan-3-one. |
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Authors:
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Atsuko Isogai; Ryoko Kanda; Yoshikazu Hiraga; Toshihide Nishimura; Hiroshi Iwata; Nami Goto-Yamamoto |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 57 ISSN: 1520-5118 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2009-01-07 Completed Date: 2009-02-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 189-95 Citation Subset: IM |
Affiliation:
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National Research Institute of Brewing, Higashihiroshima, Japan. isogai@nrib.go.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Alcoholic Beverages
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analysis* Japan Magnetic Resonance Spectroscopy Odors / analysis* Pentanones / analysis Spectrometry, Mass, Electrospray Ionization Sulfides / analysis*, chemistry* |
| Chemical | |
Reg. No./Substance:
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0/1,2-dihydroxy-5-(methylsulfinyl)pentan-3-one; 0/Pentanones; 0/Sulfides; 3658-80-8/dimethyl trisulfide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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