Bioethanol Production from Corncob Hydrolysed by Cellulase of Aspergillus niger Using Zymomonas mobilis and Saccharomyces cerevisiae Isolated from Palm Wine

Jerry, Orji; Aleke, Kelechi; Chika, Ejikeugwu; Anthonia, Nwachi; Ikechukwu, Moses; Stanley, Eluu; Emmanuel, Ugbo

doi:10.20546/ijcrbp.2016.301.004

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…It is found that there is a result discrepancy which is caused by dynamics that happen in each experimental condition while this study is a simulation that does not experience that dynamism. However, it is quite lower than yield reported by Jerry et al 33) which might be caused by the excellent cell strain in their research. The top flow of the fermentation reactor (stream 15) is wet CO2 gas containing 33.03 kg CO2 and 14.95 kg of water vapor from 5%-wt of water vapor that is set to be carried over out of the fermenter.…”

Section: Fermentation Sectioncontrasting

confidence: 56%

“…Nevertheless, it is still rarely communicated as nowadays only contains a total of 49 documents, as seen in Figure 1. The aforementioned list of studies is dominant in experimental mode focusing on hydrolysis, fermentation, or ethanol distillation separately [32][33][34][35] . Thus, a more specialized and integrated simulation study in corn cob sustainable valorization by fermentation using Zymomonas mobilis to produce bioethanol is believed to fill the gap and contribute to science and technology communities.…”

Section: Introductionmentioning

confidence: 99%

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Potential of Corn Cob Sustainable Valorization to Fuel-Grade Bioethanol: A Simulation Study Using Superpro Designer®

Steven,

Neng Tresna Umi Culsum,

Intan Clarissa Sophiana

et al. 2023

Evergreen

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The massive dependence on fossil fuels to produce ethanol has damaged the environment. This compels the quest for other alternatives using lignocellulosic materials (2 nd generation bioethanol) so as not to compete and disturb food security purposes. The promising biomass to be valorized is corn cob because of its high productivity and short harvest period. Coupled with the fact that simulation studies of its fermentation with Zymomonas mobilis to produce bioethanol are still lacking, a corn cob sustainable valorization to fuel-grade bioethanol is hence disclosed. Superpro Designer 8.5 ® was employed for simulation. Corn cob undergoes pretreatment, 2-h hydrolysis of cellulose and hemicellulose, delignification, 48-h glucose and xylose anaerobic fermentation, cells removal, vaporation, and distillation. Bioethanol is produced at 10.85%-wt from direct fermentation. Subsequently, the 1 st distillation (13 actual stages number) upgrades its concentration to 92.34%-wt. The second one (23 actual stages number) rectifies up to 99.96% and the product finally meets the criteria of fuel grade. Afterward, the calculated yield is 0.35 g/g corn cob or 44.30% based on glucose and xylose. Several by-products are also produced and to comply with the concept of sustainability, water is returned to the river, lignin and extractives are utilized for phenolic producers, wet CO2 gas is proposed for microalgae inorganic carbon sources, and stillage is returned to nature as liquid fertilizer.

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Section: Fermentation Sectioncontrasting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Potential of Corn Cob Sustainable Valorization to Fuel-Grade Bioethanol: A Simulation Study Using Superpro Designer®

Steven,

Neng Tresna Umi Culsum,

Intan Clarissa Sophiana

et al. 2023

Evergreen

View full text Add to dashboard Cite

show abstract

“…3 and 4). The total soluble solids usually decreased as the sugar in the medium fermented to ethanol [41][42][43]. On day four (4) of fermentation, the sugar depletion was very rapid, and the ethanol yield was highest; this period corresponds to the exponential phase of yeast growth, and product formation is usually at its peak during late exponential growth [7].…”

Section: Saccharomyces Cerevisiae Atcc 204508/5288cmentioning

confidence: 99%

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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Catalytic conversion of corncob biomass into bioethanol

Rekha

Saravanathamizhan

2020

Int J Energy Res

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Summary Biofuel is an eco‐friendly alternative source for the depleting fossil fuel resources. The catalytic conversion of biomass into biofuel is an emerging technique in biofuel production. In this study, iron oxide nanoparticles were synthesized from Spinacia oleracea by green synthesis method and subsequently sulfonated to produce active nanocatalyst material. The catalyst obtained has high acid activity and can be readily recovered by an external magnetic field. Corncob waste was crushed to powder form and is subjected to pretreatment by ultrasonication. The compositional analysis was carried out using the Soxhlet extraction method to estimate the cellulose, hemicellulose, and lignin contents. The functional group of biomass and morphology changes were studied by Fourier transform infrared spectroscopy (FT‐IR) and scanning electron microscopy (SEM) analysis. The active nanocatalyst was tested for the hydrolysis of corncob into sugar. The effects of catalyst dosage and temperature on sugar yield were studied. The reducing sugar yield was measured using the dinitrosalicylic acid test. The production of bioethanol from sugar hydrolysate was carried out using a simultaneous saccharification route. A reference sample and the sample with a high yield of reducing sugar were taken into the fermentation process, which was done using Saccharomyces cerevisiae yeast; this yeast was initially cultured in the YPD medium, and the grown yeast was used in the fermentation process for the production of bioethanol, whose yield was confirmed using GC analysis.

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Bioethanol Production from Corncob Hydrolysed by Cellulase of Aspergillus niger Using Zymomonas mobilis and Saccharomyces cerevisiae Isolated from Palm Wine

Cited by 7 publications

References 12 publications

Potential of Corn Cob Sustainable Valorization to Fuel-Grade Bioethanol: A Simulation Study Using Superpro Designer®

Potential of Corn Cob Sustainable Valorization to Fuel-Grade Bioethanol: A Simulation Study Using Superpro Designer®

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

Catalytic conversion of corncob biomass into bioethanol

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