Bioethanol Production from Waste Corn Using Saccharomyces cerevisiae and Aspergillus awamori

Kumar, Ashish; Rajput, Lps; Nema, Sushma; Tantwai, Keerti

doi:10.20546/ijcmas.2019.808.283

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…This work contradicts Tanbuwal et al 2018's findings, which found a low concentration of ethanol (0.331 mg/l) in corn cob wastes, which could be due to differences in the hydrolysis process used in the work. The volume of ethanol yielded in this study is higher than that reported by other researchers using corn waste such as corn stover [36], corn stalk juice [37], and waste corn [37,38].…”

Section: Saccharomyces Cerevisiae Atcc 36858contrasting

confidence: 63%

The Production of Second-generation Bioethanol from Lignocellulosic Biomass using Two Strains of Sacharomyces cerevisiae

Adedayo

Adetula

Ajiboye

et al. 2022

JAMB

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Concerns about first generation bioethanol's impact on the food chain and biodiversity have shifted research to second generation (2G) bioethanol technologies. The 2G-bioethanol is made from lignocellulosic biomass, which is more sustainable and does not harm food security or the environment. This production process uses non-food crops, food crop residues, wood or food wastes, such as wood chips, skins, or pulp from fruit pressing. The present study examines the bioethanol production potential of three lignocellulosic biomass residues: corn cob, corn husk, and corn stem, as well as their physiochemical and mineral composition before and after fermentation. Before fermentation, the corn waste samples were hydrolyzed into sugar monomer and the hydrolysate was fermented separately to produce bioethanol for five days at 282oC using two Saccharomyces cerevisiae strains: typed yeast ATCC 3585 and Baker's yeast ATCC 204508/S288c. At one-day intervals, the pH, simple sugar and ethanol production were measured. ANOVA was used to find significant differences between the investigated organisms. The results showed that Saccharomyces cerevisiae ATCC 35858 produces more ethanol than the other strain (20.25±0.63). Corn cob also produced more ethanol than stem and husk. During fermentation, the typed yeasts outperformed the Baker's yeast in pH, reducing sugar, and specific gravity. Average dry yeast cell mass (ADM) of Saccharomyces cerevisiae ATCC 35858 and Saccharomyces cerevisiae ATCC 204508/S288c were 1.82±0.07 and 1.98±0.03, respectively. According to proximate composition, fermentation lost over 50% of the corn waste's nutrients (ash), while recovering over 50% of the minerals (nitrogen, phosphorus, and potassium). The ability of the two Saccharomyces cerevisiae strains to produce bioethanol was not significantly different at p value ≤ 0.05.

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Section: Saccharomyces Cerevisiae Atcc 36858contrasting

confidence: 63%

The Production of Second-generation Bioethanol from Lignocellulosic Biomass using Two Strains of Sacharomyces cerevisiae

Adedayo

Adetula

Ajiboye

et al. 2022

JAMB

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“…Low ethanol concentration from corn cobs hydrolysate under soil and dark room conditions as compared to incubator is due to the low temperatures in the soil and dark room and the presence of other unfavourable conditions causing stresses in yeast growth and fermentation performance. (Kumar and Tantwai, 2019) also reported maximum bioethanol content from corn wastes using an incubator set at temperature 30 o C.…”

Section: Effects Of Different Fermentationmentioning

confidence: 93%

Effects of Different Incubation Methods on Ethanol Production from SelectedFood Wastes Products

Osei

Manohar

Kitur

2020

indones. j. env. man. sus.

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The study describes the potential of producing bioethanol from corn (Zea mays) cobs, collard greens (Brassica oleracea) wasteand banana (Musa acuminate) peels using different methods of incubation. Wastes were pre-treated by grinding into smallerparticles and enzymatic hydrolysis was carried out using commercial cellulase from Aspergillus niger. Anaerobic fermentationwas done using cultured Saccharomyces cerevisiae yeast suspension. Different incubation conditions (incubator, dark roomand under soil) at different temperatures 30oC, 21oC and 19oC respectively were optimised for bioethanol production atdifferent incubation times of 48, 96 and 144 hours. Maximum bioethanol percentages of corn cobs, banana peels and collardgreens were (0.48%), (0.39%) and (0.15%) respectively. The optimum conditions for maximum ethanol concentration in corncobs was the incubator conditions at temperature 30oC and 144 hours; banana peels was under soil conditions at 19oC and48 hours whilst collard greens was dark room conditions at 21oC and 48 hours incubation times. Results obtained show thepotential of producing bioethanol from corn cobs, collard greens and banana peels under different incubation conditions. Useof incubators for fermentation especially in collard greens wastes and banana peels can successfully be replaced with darkroom and soil which are more economically feasible.

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Bioethanol Production from Waste Corn Using Saccharomyces cerevisiae and Aspergillus awamori

Cited by 2 publications

References 2 publications

The Production of Second-generation Bioethanol from Lignocellulosic Biomass using Two Strains of Sacharomyces cerevisiae

The Production of Second-generation Bioethanol from Lignocellulosic Biomass using Two Strains of Sacharomyces cerevisiae

Effects of Different Incubation Methods on Ethanol Production from SelectedFood Wastes Products

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