Production of Ethanol from Sudanese Sugar Cane Molasses and Evaluation of Its Quality

Yang, Ruijin

doi:10.4172/2157-7110.1000163

Cited by 18 publications

(13 citation statements)

References 18 publications

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“…Even the 500B sample however had higher weight loss (59.2 g) than the 212A and the two 300 μm samples. Carbon dioxide, glycerol, and yeast cell biomass are reported by Gasmalla et al [33] as the by-products of sugar fermentation.…”

Section: Sugar Consumption and Fermenting Broth Weight Lossmentioning

confidence: 95%

“…Raud et al [32] obtained sugar yield of 24.29 g/100 g from 3 mm particle barley straw with enzymatic hydrolysis, after steam explosion pretreatment at 200 °C. Gasmalla et al [33] obtained a sugar yield of 84 g/100 g from sugarcane molasses. Molasses is a by-product of sugar production from sugarcane and is a popular feedstock for ethanol production.…”

Section: Sugar Consumption and Fermenting Broth Weight Lossmentioning

confidence: 99%

“…Ndukwe et al [38] produced ethanol from sawdust cellulose of 20 different kinds of wood in Southwest Nigeria with varying alcohol concentrations of 1.86 mg/mL to 3.89 mg/mL. Ethanol density of 0.807 g/mL and 96% purity was produced by Gasmalla et al [33] from sugarcane molasses.…”

Section: Physicalmentioning

confidence: 99%

“…These values were less than the 1.525 Pa.sec ASTM standard. Gasmalla et al [33] obtained ethanol of 96% v/v purity and 0.83 cP viscosity from sugarcane molasses.…”

Section: Heating Valuementioning

confidence: 99%

“…The ethanol percentage purity was obtained to be 69%. The United States Department of Energy [43] reported that the predicted yield of ethanol from hardwood sawdust was about 40.32 ml/100 g. 20 mL of ethanol per 100 g of molasses was obtained by Gasmalla et al [33] with a purity of 92%. The ratio of sugar to ethanol produced by palm wine yeast for each particle size is distinctly constant unlike that of Baker's yeast.…”

Section: Effect Of Particle Size and Yeast Strain On Product Yieldmentioning

confidence: 99%

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Effect of Production Factors on the Bioethanol Yield of Tropical Sawdust

Amaefule

Nwakaire

Ogbuagu

et al. 2023

International Journal of Energy Research

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Bioethanol production from cellulosic materials is important in mitigating the concomitant displacement and exploitation of primary food crops for biofuel production and reducing carbon emissions which exacerbate climate change. The problem of reduced yield in the production and availability of yeast locally poses a barrier to market adoption and penetration of bioethanol. The study examined the effect of particle size and different yeast strains on the yield of bioethanol from waste sawdust that was sourced from a local timber processing centre. The samples of yeast were prepared from baker’s yeast (Saccharomyces cerevisiae) and palm wine yeast (Saccharomyces chevalieri). The sawdust was reduced to 212 μm, 300 μm, and 500 μm particle sizes. The samples of each particle size were pretreated and hydrolyzed with H2SO4 and fermented with S. cerevisiae or S. chevalieri yeast. The results obtained show that the weight, pH, density, viscosity, flash point, and heating value of the produced bioethanol ranged between 221.67 and 322.64 g, 6.2 and 6.6, 0.821 and 0.878 g/mL, 1.073 and 1.193, 14 and 16°C, and 20.5 and 23.1 MJ/kg, respectively, while the alcohol content of each of the samples was 69%. Furthermore, the bioethanol yield from Saccharomyces cerevisiae yeast was 213.9 mL, 193.2 mL, and 186.3 mL, for the 212 μm, 300 μm, and 500 μm particles, while for Saccharomyces chevalieri yeast, the yield was 289.8 mL, 255.3 mL, and 220.8 mL for the 212 μm, 300 μm, and 500 μm, respectively. An ANOVA on the effect of particle size on ethanol yield shows a significant difference at 5% level of significance. The study demonstrated that the use of locally produced yeast and increasing the surface area of sawdust increase bioethanol yield. Hence, it was concluded that better yeast strain use and biomass particle size reduction to a level that allows the optimal surface area for the reaction improve the yield of bioethanol. The study outcome can help in ameliorating the continued dependence on fossil fuels and the food security problems arising from displacing or utilizing food for fuel and could also encourage commercial-scale cellulosic ethanol production from waste.

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Section: Sugar Consumption and Fermenting Broth Weight Lossmentioning

confidence: 95%

Section: Sugar Consumption and Fermenting Broth Weight Lossmentioning

confidence: 99%

Section: Physicalmentioning

confidence: 99%

“…These values were less than the 1.525 Pa.sec ASTM standard. Gasmalla et al [33] obtained ethanol of 96% v/v purity and 0.83 cP viscosity from sugarcane molasses.…”

Section: Heating Valuementioning

confidence: 99%

Section: Effect Of Particle Size and Yeast Strain On Product Yieldmentioning

confidence: 99%

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