PRELIMINARY STUDY ON ISOLATION, IDENTIFICATION AND ETHANOL FERMENTATION OF THERMOTOLERANT YEAST
- VernacularTitle:耐高温酵母菌株的分离、鉴定及其酒精发酵初步研究
- Author:
Ye-Fu CHEN
;
Zheng-Xiang WANG
;
Chen-Xia WANG
;
Hui-Ying FANG
;
Ge ZHU
;
- Publication Type:Journal Article
- Keywords:
Thermotolerant yeast, Kluyveromyces, Saccharo myces, Ethanol fermentation
- From:
Microbiology
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Two thermotolerant, ethanol-producing yeast cultures: THFY-4 and THFY-16 were isolated from 381 nature samples. THFY-4 can grow on 30% glucose plate at 51 ℃,while THFY-16 can grow on the same medium at 45℃.After preliminary ide ntification, THFY-4 was identified as Kluyveromyces sp. and THFY-16 belon gs to Saccharomyces genus. The ethanol fermentation experiment shows that T HFY-4 can only produce 4.88% (v/v) ethanol from 20% glucose after 60 hours, wh ile THFY-16 can produce 11.44% ethanol under the same condition. When using s accharified Canna edulis Ker wort as fermentation medium, 9.43%(v/v) ethanol we re produced from 16.1% glucose, which is 91.0% of the theoretical yield.
