Immobilization of Zymomonas mobilis and amyloglucosidase for ethanol production from sago starch

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Title
Immobilization of Zymomonas mobilis and amyloglucosidase for ethanol production from sago starch
Author(s)
Chul Ho Kim; G M Lee; Z Abidin; Moon Hi Han; Sang Ki Rhee
Bibliographic Citation
Enzyme and Microbial Technology, vol. 10, pp. 426-430
Publication Year
1988
Abstract
Immobilization of amyloglucosidase (AMG) and Zymomonas mobilis cells was studied in order to produce ethanol from sago starch economically. Among various immobilization methods tested, a coimmobilized system using chitin and sodium alginate appeared most promising with respect to ethanol productivity and operational stability. When the system was run in the continuous simultaneous saccharification and fermentation (SSF) mode, the maximum ethanol productivity was found to be 72.2 g l-1 h-1 at a dilution rate of 3.28 h-1. This system could be run in the stable manner over 40 days with a steady-state ethanol concentration of 44 g l-1 and an ethanol conversion yield of 93%.
Keyword
Immobilizationzymomonas mobilisethanol productionsago starchsimultaneousSaccharification and fermentationamyloglucosidase
ISSN
0141-0229
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/0141-0229(88)90037-3
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Microbial Biotechnology Research Center > 1. Journal Articles
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