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2018 Fiscal Year Final Research Report

Elucidation of the existence of mycotoxin glycosides and risk assessment

Research Project

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Project/Area Number 16K08205
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical pharmacy
Research InstitutionHoshi University

Principal Investigator

Kawaguchi-Ito Rie (伊藤里恵)  星薬科大学, 薬学部, 講師 (90398892)

Co-Investigator(Kenkyū-buntansha) 斉藤 貢一  星薬科大学, 薬学部, 教授 (40386347)
Research Collaborator Sasaki Seira  
Oka Sayako  
Ozawa Kouki  
Ito Satomi  
Yoshida Hitomi  
Project Period (FY) 2016-04-01 – 2019-03-31
Keywordsカビ毒 / カビ毒配糖体
Outline of Final Research Achievements

In this study, simultaneous determination of deoxynivalenol (DON) and DON-3-glucoside (D3G) was developed to clarify the mycotoxin contamination in beer. As a result of determination of beer, DON and D3G were detected at high frequency, and the maximum detected concentration of DON and D3G were 70.0 and 203.9 ng/mL, respectively. Based on the quantitative value, human exposure was estimated and the risk was assessed. When humans drank the most pollued beer, DON alone did not exceed tolerable daily intake (TDI), but including D3G exposure exceeded TDI.

Free Research Field

分析化学

Academic Significance and Societal Importance of the Research Achievements

ビール中のデオキシニバレノール(DON)およびその配糖体(D3G)の分析法を構築し、実試料での測定を行ったところ、DONおよびD3Gが高頻度で検出されることが明らかとなった。実試料の定量値を用いて行った曝露量評価では、従来のDON単独での曝露量評価では、その曝露量を過小評価していることを明らかにしており、今後、カビ毒の曝露量を試算する場合には、配糖体からの曝露も勘案する必要があると示した。このことはこれまでのカビ毒単体での曝露量評価に警鐘を鳴らすものであり、学術的にも社会的にも大きな意義を持つものと思われる。

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Published: 2020-03-30  

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