Sago starch saccharification and simultaneous ethanol fermentation by amyloglucosidase and Zymomonas mobilis

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Title
Sago starch saccharification and simultaneous ethanol fermentation by amyloglucosidase and Zymomonas mobilis
Author(s)
Gyun-Min Lee; Chul Ho Kim; Z A M Yusof; Moon Hi Han; Sang Ki Rhee
Bibliographic Citation
Journal of Chemical Technology and Biotechnology, vol. 38, pp. 235-242
Publication Year
1987
Abstract
Simultaneous saccharification and ethanol fermentation (SSF) of sago starch was studied using amyloglucosidase (AMG) and Zymomonas mobilis. The optimal concentration of AMG and operating temperature for the SSF process were found to be 0. 5% (v/w) and 35 degree C, respectively. Under these conditions with 150 g dm** minus **3 sago starch as a substrate, the final ethanol concentration obtained was 69. 2 g dm** minus **3 and ethanol yield, Y//P/////S, 0. 50 g g** minus **1 (97% of theoretical yield). Sago starch in the concentration range of 100-200 g dm** minus **3 was efficiently converted into ethanol. When compared to a two-step process involving separate saccharification and fermentation stages, the SSF reduced the total process time by half.
Keyword
ETHANOL - FermentationAMYLOGLUCOSIDASESAGO STARCHZYMOMONAS MOBILISSTARCH
ISSN
0268-2575
Publisher
Wiley
DOI
http://dx.doi.org/10.1007/BF00369488
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Microbial Biotechnology Research Center > 1. Journal Articles
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