Abstract:
:Maintenance of high cell viability was the main characteristic of our new strains of thermotolerant Saccharomyces. Total sugar conversion to ethanol was observed for sugarcane juice fermentation at 38-40 degrees C in less than 10 h and without continuous aeration of the culture. Invertase activity differed among the selected strains and increased during fermentation but was not dependent on cell viability. Invertase activity of the cells and optimum temperature for growth, as well as velocity of ethanol formation, were dependent on medium composition and the type of strain used. At high sugarcane syrup concentrations, the best temperature for ethanol formation by strain 781 was 35 degrees C. Distinct differences among the velocities of ethanol production using selected strains were also observed in sugarcane syrup at 35-38 degrees C.
journal_name
Biotechnol Bioengjournal_title
Biotechnology and bioengineeringauthors
Laluce C,Palmieri MC,Lopes da Cruz RCdoi
10.1002/bit.260370606subject
Has Abstractpub_date
1991-03-15 00:00:00pages
528-36issue
6eissn
0006-3592issn
1097-0290journal_volume
37pub_type
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