FERMENTAÇÃO ALCOÓLICA DE HIDROLISADO HEMICELULÓSICO DE TORTA DO CAROÇO DE ALGODÃO POR GALACTOMYCES GEOTRICHUM UFVJM-R10

ALCOHOLIC FERMENTATION FROM COTTON SEED CAKE HEMICELLULOSIC HYDROLYSATE BY GALACTOMYCES GEOTRICHUM UFVJM-R10

GARCIA, CAMILA TELES DE RIETRA; SANTOS, ALEXANDRE SOARES DOS; MATOS, JÉSSICA PEREIRA DE; RIBEIRO, BRUNA TAMEIRãO; PANTOJA, LILIAN DE ARAUJO

Artigo:

The use of hemicellulosic fraction from some agroindustrial wastes for second generation bioethanol (2G) production depends on microorganisms capable of pentose and hexose fermentation. The present study evaluated the efficiency and viability of bioethanol production carried out with Galactomyces geotrichum UFVJM-R10 fermentation capability in cotton seed cake hemicellulosic fraction. The biomass hydrolysis was performed on a 31% rate solid/liquid (m/v) using a H2SO4 8% solution at 120ºC and 1 atm pressure for 38 minutes. The best product yields (1.16 g g-1), fermentative efficiency (>100%) and volumetric productivity (0.05 g L -1 h -1) were observed in the medium with nitrogen and mineral salts supplementation. From the results, it can be inferred that G. geotirchum UFVJM-R10 has potential for bioethanol production from glucose and xylose assimilation. Furthermore, the addition of a supplementing solution containing nitrogen and mineral salts should be considered to achieve better results.

The use of hemicellulosic fraction from some agroindustrial wastes for second generation bioethanol (2G) production depends on microorganisms capable of pentose and hexose fermentation. The present study evaluated the efficiency and viability of bioethanol production carried out with Galactomyces geotrichum UFVJM-R10 fermentation capability in cotton seed cake hemicellulosic fraction. The biomass hydrolysis was performed on a 31% rate solid/liquid (m/v) using a H2SO4 8% solution at 120ºC and 1 atm pressure for 38 minutes. The best product yields (1.16 g g-1), fermentative efficiency (>100%) and volumetric productivity (0.05 g L -1 h -1) were observed in the medium with nitrogen and mineral salts supplementation. From the results, it can be inferred that G. geotirchum UFVJM-R10 has potential for bioethanol production from glucose and xylose assimilation. Furthermore, the addition of a supplementing solution containing nitrogen and mineral salts should be considered to achieve better results.

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DOI: 10.5151/cobecic2019-PBIO20

Referências bibliográficas

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Como citar:

GARCIA, CAMILA TELES DE RIETRA; SANTOS, ALEXANDRE SOARES DOS; MATOS, JÉSSICA PEREIRA DE; RIBEIRO, BRUNA TAMEIRãO; PANTOJA, LILIAN DE ARAUJO; "FERMENTAÇÃO ALCOÓLICA DE HIDROLISADO HEMICELULÓSICO DE TORTA DO CAROÇO DE ALGODÃO POR GALACTOMYCES GEOTRICHUM UFVJM-R10", p-2541-2547. In: Anais do XIII Congresso Brasileiro de Engenharia Química em Iniciação Científica. São Paulo: Blucher, 2019.
ISSN 23591757, DOI 10.5151/cobecic2019-PBIO20