BATCH ETHANOL FERMENTATION OF SUGARCANE M OLASSES MEDIA BY ZYMOMONAS-MOBILIS

Authors
DIEZ JC YOKOYA F
Citation
Jc. Diez et F. Yokoya, BATCH ETHANOL FERMENTATION OF SUGARCANE M OLASSES MEDIA BY ZYMOMONAS-MOBILIS, Arquivos de biologia e tecnologia, 39(2), 1996, pp. 419-426
Citations number
21
Categorie Soggetti
Biology
Journal title
Arquivos de biologia e tecnologia → ACNP
ISSN journal
03650979
Volume
39
Issue
2
Year of publication
1996
Pages
419 - 426
Database
ISI
SICI code
0365-0979(1996)39:2<419:BEFOSM>2.0.ZU;2-4
Abstract
The effect of nutrient addition, molasses clarification with NaH2PO4.H 2O, sugars concentration (55 to 145 g/L) and temperature (30 to 40 deg rees C) on the growth rate and ethanol production using Zymomonas mobi lis CP4 in batch fermentation process was studied. The best ethanol yi elds were obtained using clarified and supplemented molasses. Growth r ate and ethanol production were optimum at 34 degrees C and sugars con centration of 110 g/L. At temperatures up to 37 degrees C inhibitory e ffects on growth and fermentation were observed.