Production of bioethanol from corn meal hydrolyzates

Mojović, Ljiljana; Nikolic, Slobodan; Rakin, Marica; Vukašinović, Maja

doi:10.1016/j.fuel.2006.01.018

Cited by 136 publications

(76 citation statements)

References 26 publications

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“…Bioethanol, produced from sugar, starch and lignocellulosic biomass resources by fermentation, is the most promising biofuel and the original material of various chemical; especially since it has shown potential to partially substitute for gasoline [1][2][3]. Although the ethanol used today is mainly produced from sugar cane (Brazil) and corn (USA), projected fuel demands indicate that ethanol production from other starch-rich grains, agricultural and forest residues, food processing by-products and agricultural energy crops will be required in the future [4,5].…”

Section: Introductionmentioning

confidence: 99%

Energy-saving direct ethanol production from viscosity reduction mash of sweet potato at very high gravity (VHG)

Zhang

Chen

Jin

et al. 2010

Fuel Processing Technology

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Section: Introductionmentioning

confidence: 99%

Energy-saving direct ethanol production from viscosity reduction mash of sweet potato at very high gravity (VHG)

Zhang

Chen

Jin

et al. 2010

Fuel Processing Technology

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“…Arasaratnam and Balasubramaniam (1993) obtained a similar glucose yield on corn flour by using a two enzyme hydrolysis method. Simillarly, Mojovic et al (2006) also reported a high conversion rate (dextrose equivalent 92.1%) of corn meal by using the same method.…”

Section: Enzymatic Saccharification and Fermentationmentioning

confidence: 76%

“…These results are in agreement with those of Dabas et al (1997) who obtained 6-6.4% (v/v) ethanol within 36 h at 30 o C from 25% wheat mash saccharified by a combination of -amylase and amyloglucosidase and fermented by S. cerevisiae. In a different study, Mojovic et al (2006) achieved 78.5 % of The theoretical yield of ethanol and the highest volumetric productivity of 1.6 g/l/h utilizing 17.5 % corn meal in 48 h using S. cerevisiae. The lower product yield obtained in the current study may be due to the different experimental conditions applied and the fermenting organism used.…”

Section: Enzymatic Saccharification and Fermentationmentioning

confidence: 99%

“…To reduce the complete process time and achieve beneficial energy savings as suggested by Mojovic et al (2006), the fermenting organism Z. mobilis was inoculated along with AMG and both saccharification and fermentation were carried out at room temperature (30 o C). Volumetric ethanol productivity by Z. mobilis was higher in AMG enzyme saccharification (0.38g l -1 h -1…”

Section: Simultaneous Saccharification and Fermentationmentioning

confidence: 99%

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Simultaneous saccharification and fermentation of cassava waste for ethanol production

Pothiraj

Arun

Eyini³

2015

Biofuel Res. J.

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Please cite this article as: Pothiraj C., Arun A., Eyini M. Simultaneous saccharification and fermentation of cassava waste for ethanol production. The efficiency of enzymatic and microbial saccharification of cassava waste for ethanol production was investigated and the effective parameters were optimized. The mixture of amylase and amyloglucosidase (AMG) resulted in a significantly higher rate of saccharification (79.6%) than the amylase alone (68.7%). Simultaneous saccharification and fermentation (SSF) yielded 6.2 g L -1 ethanol representing 64.5% of the theoretical yield. Saccharification and fermentation using pure and cocultures of fungal isolates including Rhizopus stolonifer, Aspergillus terreus, Saccharomyces diastaticus and Zymomonas mobilis revealed that the co-culture system involving S. diastaticus and Z. mobilis was highly suitable for the bio-conversion of cassava waste into ethanol, resulting in 20.4 g L -1 in 36 h (91.3% of the theoretical yield).

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“…Azúcares reductores Espectrofotométrico 8.0 mM** La hidrólisis del almidón presente en el banano debe ser considerado como el paso clave para la producción de etanol. En éste paso ocurre la conversión de amilosa y amilopectina a azúcares fermentables que posteriormente pueden ser convertidos a etanol por levaduras y bacterias (Mojovic et al, 2006) La figura 1 muestra los resultados que se obtienen al evaluar los diferentes procesos de hidrólisis con respecto a los sólidos solubles (ºBx) y el etanol producido. Si se considera una concentración de carbohidratos en el banano completo, cercana al 29% (Aurorea, 2009).…”

Section: Resultados Y Discusionunclassified

Obtención de Etanol y Biogás a Partir de Banano de Rechazo

et al. 2012

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* Autor a quien debe ser dirigida la correspondencia.Recibido Ago. 25, 2011; Aceptado Oct. 12, 2011; Versión Final recibida Nov. 03, 2011 Resumen Se desarrolló un proceso fermentativo mediante hidrólisis endógena inducida para producir etanol a partir de banano verde no apto para exportación. El potencial de las vinazas también fue evaluado para obtener biogás. A escala de 1 litro se comparó la hidrólisis endógena inducida con la hidrólisis exógena usando enzimas comerciales, y la hidrólisis ácida tomando como punto de referencia el etanol producido en la fermentación. Con la hidrólisis endógena se obtuvo los mayores rendimientos y con esta metodología se realizaron fermentaciones a 15 litros Los rendimientos de etanol en promedio fueron 0.065 litros por kilogramo de banano verde y los del biogás fueron 2.24 litros por litro de vinaza. El proceso propuesto presenta rendimientos comparables con los de la fermentación de caña de azúcar. Además presenta ventajas, tales como su bajo costo, fácil operación y por ser una alternativa de solución ambientalmente compatible en el área del manejo de residuos de cosecha. Palabras clave: hidrólisis enzimática; banano de rechazo, etanol, biogás, fermentación Biogas and Bioethanol Production from Non-Exportable Low Quality Banana AbstractIn this study was developed a fermentative process to produce ethanol from green banana non optimal for exportation through one induced endogenous hydrolysis. The potential of the stillage to produce biogas was also evaluated. It was compared the induced endogenous hydrolysis, with the exogenous hydrolysis that uses commercial enzymes and the traditional acid hydrolysis done all of them in a final volume of 1 liter, the reference point was the ethanol produced in the fermentation process. The maximum performance was obtained with the endogenous hydrolysis and with these methodology fermentations at 15 liter as done. The average of ethanol produced was 0.065 liters from one kilogram of green banana and the biogas production was 2.24 liter per liter of stillage. The proposed process shows performance comparable with that obtained by sugar cane fermentation. Also the methodology demonstrated several advantages, such as low cost, simple to operate, and because it constitutes a good alternative, which is environmentally compatible in the area of management of crop residues.

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Production of bioethanol from corn meal hydrolyzates

Cited by 136 publications

References 26 publications

Energy-saving direct ethanol production from viscosity reduction mash of sweet potato at very high gravity (VHG)

Energy-saving direct ethanol production from viscosity reduction mash of sweet potato at very high gravity (VHG)

Simultaneous saccharification and fermentation of cassava waste for ethanol production

Obtención de Etanol y Biogás a Partir de Banano de Rechazo

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