Zymomonas mobilis immobilized on loofa sponge: Ethanol and Levan production by support recycling

Zymomonas mobilis immobilized on loofa sponge: Ethanol and Levan production by support recycling

Santos, Vidiany Aparecida Queiroz; Fonseca, Michel da Silva; Cunha, Mário Antônio Alves da; Cruz, Crispin Humberto Garcia; Horcasitas, Maria Del Carmem Montes

Artigo Completo:

The Zymomonas mobilis is considered a high technological potential for the ethanol and levan production, because showed low biomass and high tolerance to ethanol. The aim of this study was to evaluate the levan-ethanol production by Zymomonas mobilis immobilized on loofa sponge by immobilization support recycling. The immobilization was realized directly on the reactor with changes in the design of support fermentation and the fermentation cycles were repeated till the production of levan and ethanol dropped to considerably lower level. It was observed higher ethanol (34.64 g.L-1) and levan (26.40 g.L-1) production during all fermentation cycles. The maximum substrate consume was 45% and the final pH was between 3.3 and 3.5. It was also found that the microorganism remained viable and showed levan and ethanol production until the last recycle day.

The Zymomonas mobilis is considered a high technological potential for the ethanol and levan production, because showed low biomass and high tolerance to ethanol. The aim of this study was to evaluate the levan-ethanol production by Zymomonas mobilis immobilized on loofa sponge by immobilization support recycling. The immobilization was realized directly on the reactor with changes in the design of support fermentation and the fermentation cycles were repeated till the production of levan and ethanol dropped to considerably lower level. It was observed higher ethanol (34.64 g.L-1) and levan (26.40 g.L-1) production during all fermentation cycles. The maximum substrate consume was 45% and the final pH was between 3.3 and 3.5. It was also found that the microorganism remained viable and showed levan and ethanol production until the last recycle day.

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DOI: 10.5151/biochem-vsimbbtec-22269

Referências bibliográficas

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Como citar:

Santos, Vidiany Aparecida Queiroz; Fonseca, Michel da Silva; Cunha, Mário Antônio Alves da; Cruz, Crispin Humberto Garcia; Horcasitas, Maria Del Carmem Montes; "Zymomonas mobilis immobilized on loofa sponge: Ethanol and Levan production by support recycling", p-279-282. In: In Anais do V Simpósio de Bioquímica e Biotecnologia - VSIMBBTEC [=Blucher Biochemistry Proceedings].. São Paulo: Blucher, 2015.
ISSN 23595043, DOI 10.5151/biochem-vsimbbtec-22269