The Mass Spectrometry society of Japan - The 71st Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

Table of contents

Timetable

Plenary Lecture

Symposium Sessions (Day1, Day2, Day3)

Basic Sessions (Day1, Day2, Day3)

Young Researchers' Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Special Evening Sessions

Corporate Program

Poster Presentations

Day 1, May 15（Mon.）　　Room P (Foyer, Room 1004-1007)

1P-08　　PDF

Structural Elucidation of a Causative Substance of Fishy Smell in Raw Water for Taps with Mass Spectrometry, the Anharmonic Downward Distortion Following-Scaled Hypersphere Search Method and Derivatization

(1Kagoshima Univ., 2Univ. Tokyo, 3Nat. Inst. Pub. Health)
oHirokazu Takanashi1, Yuuki Yamashi1, Yuuta Shinfuku1,2, Tsunenori Nakajima1, Michihiro Akiba3

A number of off-flavor events regarding tap water have occurred across Japan. Fishy smell is the second most common off-flavor in Japan. Its causative substance (hereafter referred to as FX) is still unrevealed to the best of our knowledge. The authors have found one of the causative substances and elucidated its structure partially, but not yet identified it. The number of the candidate structures of the FX was 46 at the moment. Therefore, the objective of this study is to narrow down the number of the candidate structures with mass spectrometry, quantum-chemical calculations (the anharmonic downward distortion following-scaled hypersphere search, ADDF-SHS), and a derivatization. The number of the candidate structures of the FX was narrow down to two from 46.