酵母細胞膜の粘質物の研究-8-
スポンサーリンク
概要
- 論文の詳細を見る
By precipitation with methanol polysaccharide was isolated from filtrate of some kinds of Saccharomyces which were cultivated on synthetic solid and liquid media contained cane sugar or glucose. On acid hydrolysis this substance produced a large quantity of glucose and a little of arabinose. It was ascertained that the polysaccharide was neither glycogen nor yeast gum. From the result of this experiment, it was presumed that the polysaccharide was cell wall substance and it was the same as the mucous substance which presence around cells was comfirmed by the electron microscopic observation. When the residual sugar of carbon source as disaccharide in liquid medium was measured by quantity of its reducing sugar produced by acid hydrolysis, the value was obviously effected by the polysaccharide mingled in medium from cells during cultivation in case of old medium reserved little residual sugar. From all kinds of Saccharomyces used in this experiment the same polysaccharide was obtained, but, among them, bottom yeast yielded more quantity of it than top yeast. It was seemed that the substance has connection to flocculation of yeast.
- 社団法人 日本農芸化学会の論文