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Ethanol production from sweet sorghum by Saccharomyces cerevisiae DBKKUY-53 immobilized on alginate-loofah matrices.


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 20×20×5mm3 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 97.54g/L and 1.36g/Lh, respectively. The use of the ALM-immobilized cells was successful for at least six consecutive batches (360h) without any loss of ethanol production efficiency, suggesting their potential application in industrial ethanol production.

SUBMITTER: Nuanpeng S 

PROVIDER: S-EPMC6328710 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Ethanol production from sweet sorghum by Saccharomyces cerevisiae DBKKUY-53 immobilized on alginate-loofah matrices.

Nuanpeng Sunan S   Thanonkeo Sudarat S   Klanrit Preekamol P   Thanonkeo Pornthap P  

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] 20180313


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 20×20×5mm<sup>3</sup> 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 composi  ...[more]

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