Hexose-phosphorylating Activities of Torulopsis holmii KY-5 Isolated from Kefir Grain

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概要

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• Torulopsis holmii KY-5 isolated from Kefir grain had in its constitution two kinds of hexose phosphorylating enzymes: glucokinase and galactokinase, and also had inducible hexokinase induced only by fructose. Unless the hexokinase was induced in the yeast, the galactokinase activity was about 5-9 times as much as glucokinase activity, and therefore this resulted in the preferential utility of galactose over glucose. The induction of hexokinase by fructose was suggested by the inhibitory effects of 2-deoxyglucose for the growth of fructose-grown cells. The hexokinase induction by fructose was also confirmed chromatographically and electrophoretically.

• 社団法人 日本農芸化学会の論文

著者

• IWASAWA Shinji

  Technical Research Institute, Snow Brand Milk Products Co. Ltd.

• UEDA Masatsugu

  Technical Research Institute, Snow Brand Milk Products Co. Ltd.

• MIYATA Nobuo

  Technical Research Institute, Snow Brand Milk Products Co. Ltd.

• AHIKO Kenkichi

  Technical Research Institute, Snow Brand Milk Products Co. Ltd.

関連論文

• Identification and Fermentation Character of Kefir Yeast
• Hexose-phosphorylating Activities of Torulopsis holmii KY-5 Isolated from Kefir Grain

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