Contribution of Ethyl α-D-Glucoside to Flavor Construction in Sakè

  • OKA Satoru
    Department of Fermentation Technology, Faculty of Engineering, Hiroshima University
  • SATO Shin
    Research Institute of Brewing, Tax Administration Agency

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Other Title
  • 清酒の風味構成に対するエチルα‐D‐グルコシドの寄与
  • セイシュ ノ フウミ コウセイ ニ タイスル エチル アルファ D グルコシド

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Abstract

A glucosidic substance was isolated in crystals from saké and identified as ethyl α-D-glucoside. Twenty five samples of commercially distributed saké were analyzed for the glucoside by gas-liquid chromatography and its content was determined in a range from 0.24 to 0.71g/100ml.<br> Organoleptic examination on synthetic ethyl α-D-glucoside characterized the glucoside to be a sweet and bitter compound; the threshold values were 1.2 and 0.063g/100ml, respectively. The usual content of the glucoside remarkably exceeded the threshold for bitterness, thus the glucoside was considered to be a bitter component contributing to the construction of the unique flavor in saké.

Journal

  • Nippon Nōgeikagaku Kaishi

    Nippon Nōgeikagaku Kaishi 50 (10), 455-461, 1976

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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