Unusual Fructose Utilization by Pichia stipitis and Its Potential Application

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概要

• 論文の詳細を見る

• The pentose-fermenting yeast Pichia stipitis was recently found to metabolize D-fructose pporly in the presence of D-xylose. In a survey of strains from 17 other Pichia species growing in a xylose/fructose mixture, only P. abadieae displayed a pattern of sugar utilization similar to P. stipitis in that the pentose was consumed preferentially over D-fructose. However, poor or incomplete D-fructose utilization was found with several species. The question was raised whether such a property may be useful for D-fructose enrichment in a glucose/fructose mixture. Among the species which utilized D-fructose incompletely, P. stipitis strains showed the best potential in this regard, as it rapidly counsumed D-glucose with the production of ethanol, while D-fructose remained unused. Cell extracts of P. stipitis possessed D-fructose-phosphorylating activity. Therefore, the site responsible for poor D-fructose metabolism was postulated to be D-fructose transport.

• 公益社団法人日本生物工学会の論文
• 1990-02-25

著者

• Lee H

  Univ. Guelph Ontario Can

• Lee Hung

  Department Of Chemistryk The Chinese University Of Hong Kong

• Fisher Barbara

  Department Of Environmental Biology University Of Guelph

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