ISOLATION OF THERMOTOLERANT, FERMENTATIVE YEASTS GROWING AT 52-DEGREES-C AND PRODUCING ETHANOL AT 45-DEGREES-C AND 50-DEGREES-C

被引：175
作者：
BANAT, IM
NIGAM, P
MARCHANT, R
机构：
[1] Department of Biology, University of Al-Ain, Abo-Dhabi
[2] Department of Biological and Biomedical Sciences, University of Ulster, Coleraine
来源：
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1992年 / 8卷 / 03期
关键词：
ETHANOL PRODUCTION; FERMENTATIVE YEAST; KLUYVEROMYCES; THERMOTOLERANT YEAST;
D O I：
10.1007/BF01201874
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Five thermotolerant, alcohol-producing yeast cultures were isolated from samples obtained from India. Two were identified as of Kluyveromyces marxianus. All five grew on plate-cultures up to 52-degrees-C, with maximum growth rates in liquid culture at 40-degrees-C. All produced relatively high alcohol concentrations: 5.7 to 7.0% (w/v) at 45-degrees-C and 5.0 to 5.5% (w/v) at 50-degrees-C when growing on 14.0% (w/v) glucose. All five isolates fermented diluted molasses containing 16.0% (w/v) total sugars, producing 5.6 to 6.0% (w/v) alcohol concentrations. Supplementing the molasses with P, K, Mg and Mn resulted in a 13 to 20% increase in alcohol production at 40-degrees-C. The maximum amounts of alcohol produced on supplemented molasses were 7.5 to 8.0 and 6.5 to 7.0% (w/v) at 37-degrees-C and 40-degrees-C, respectively.
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页码：259 / 263
页数：5
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