Ethanol production from sweet sorghum by Saccharomyces cerevisiae DBKKUY-53 immobilized on alginate-loofah matrices
Braz. j. microbiol
;
49(supl.1): 140-150, 2018. tab, graf
Article
in English
| LILACS
| ID: biblio-974343
ABSTRACT
Abstract Ethanol production from sweet sorghum juice (SSJ) using the thermotolerant Saccharomyces cerevisiae strain DBKKUY-53 immobilized in an alginate-loofah matrix (ALM) was successfully developed. As found in this study, an ALM with dimensions of 20 × 20 × 5 mm3 is effective for cell immobilization due to its compact structure and long-term stability. The ALM-immobilized cell system exhibited greater ethanol production efficiency than the freely suspended cell system. By using a central composite design (CCD), the optimum conditions for ethanol production from SSJ by ALM-immobilized cells were determined. The maximum ethanol concentration and volumetric ethanol productivity obtained using ALM-immobilized cells under the optimal conditions were 97.54 g/L and 1.36 g/L h, respectively. The use of the ALM-immobilized cells was successful for at least six consecutive batches (360 h) without any loss of ethanol production efficiency, suggesting their potential application in industrial ethanol production.
Full text:
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Index:
LILACS (Americas)
Main subject:
Saccharomyces cerevisiae
/
Industrial Microbiology
/
Sorghum
/
Ethanol
Type of study:
Evaluation studies
Language:
English
Journal:
Braz. j. microbiol
Journal subject:
Microbiology
Year:
2018
Type:
Article
Affiliation country:
Thailand
Institution/Affiliation country:
Khon Kaen University/TH
/
Mahasarakham University,/TH
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