Production of bioethanol from sugarcane bagasse using yeast strains: A kinetic study

Iram, Mehvish; Asghar, Umar; Irfan, Muhammad; Huma, Zile; Jamil, Saba; Nadeem, Muhammad; Syed, Quratulain

doi:10.1080/15567036.2017.1422056

Cited by 17 publications

(9 citation statements)

References 10 publications

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“…The results suggested that SLQA had no significant effect on the ethanol yield, while BS12 strongly inhibited glucose fermentation. The ethanol yield also decreased during the final fermentation period, which was similar to the phenomenon shown in Figure c and in previous literature. , As mentioned above, this was probably because yeasts converted ethanol to organic acids in the final stage of fermentation …”

Section: Resultssupporting

confidence: 90%

“…The ethanol yield decreased at the end of enzymatic hydrolysis and fermentation, which was consistent with other studies. 40,41 This was probably because yeasts converted ethanol to other organic acids in the late stage of fermentation. 42 The 1 g/L BS12 had an effective enhancement on enzymatic hydrolysis and fermentation of a corncob residue, while the 5 g/L BS12 had an inhibition on enzymatic hydrolysis and fermentation.…”

Section: Resultsmentioning

confidence: 99%

“…The ethanol yield also decreased during the final fermentation period, which was similar to the phenomenon shown in Figure 3c and in previous literature. 40,42 As mentioned above, this was probably because yeasts converted ethanol to organic acids in the final stage of fermentation. 42 In addition, the effects of SLQA and BS12 on the yeast cell viability and cell membrane damage were also studied to explore the mechanism of the effects of amphoteric surfactants on glucose fermentation.…”

Section: Mechanism Of the Effects Of Amphoteric Surfactants On Semi-s...mentioning

confidence: 94%

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Enhancement and Mechanism of a Lignin Amphoteric Surfactant on the Production of Cellulosic Ethanol from a High-Solid Corncob Residue

Cai

et al. 2019

J. Agric. Food Chem.

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A lignin amphoteric surfactant and betaine could enhance the enzymatic hydrolysis of lignocellulose and recover cellulase. The effects of lignosulfonate quaternary ammonium salt (SLQA) and dodecyl dimethyl betaine (BS12) on enzymatic hydrolysis digestibility, ethanol yield, yeast cell viability, and other properties of high-solid enzymatic hydrolysis and fermentation of a corncob residue were studied in this research. The results suggested that SLQA and 1 g/L BS12 effectively improved the ethanol yield through enhancing enzymatic hydrolysis. SLQA had no significant effect on the yeast cell membrane and glucose fermentation. However, 5 g/L BS12 reduced the ethanol yield as a result of the fact that 5 g/L BS12 damaged the yeast cell membrane and inhibited the conversion of glucose to ethanol. Our research also suggested that 1 g/L BS12 enhanced the ethanol yield of corncob residue fermentation, which was attributed to the fact that lignin in the corncob adsorbed BS12 and decreased its concentration in solution to a safe level for the yeast.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Mechanism Of the Effects Of Amphoteric Surfactants On Semi-s...mentioning

confidence: 94%

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Enhancement and Mechanism of a Lignin Amphoteric Surfactant on the Production of Cellulosic Ethanol from a High-Solid Corncob Residue

Cai

et al. 2019

J. Agric. Food Chem.

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“…The use of fossil fuels and its adverse effects resulting in the global warming by emitting greenhouse gases became a matter of concern to the human nation [1]. Several countries have already started working on progressive alternative renewable energy production in order to replace the conventional fossil fuels, especially in the transport sector.…”

Section: Introductionmentioning

confidence: 99%

Cellulosic bioethanol production from Eragrostis airoides Nees grass collected from Northeast India

Singh

2019

SN Appl. Sci.

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The aim of this study was to check the ethanol yield of locally available lignocellulosic biomass (Eragrostis airoides Nees) by enzymatic saccharification and microbial fermentation. Two types of physico-chemical pretreatments were studied (dilute acid and alkaline). Physico-chemical pretreatment with dilute acid showed to be superior over the alkaline treatment with respect to the rate of enzyme hydrolysis and ethanol productivity. In the pretreatment conditions, the 5% acid + autoclave yielded the highest concentrations of total reducing sugar (25.46 g/L) and enzymatic hydrolysis (9.13 g/L). Fermentation of the E. airoides hydrolyzates by Saccharomyces cerevisiae produced a fermentation yield of 17.56 g/L ethanol. Therefore, E. airoides could be utilized to produce bioethanol and it can be a potential candidate for future bioethanol production as suggested by the analysis.

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“…Many authors have relied on Sacchromyces spp. for the production of bio-ethanol [14,[16][17][18]. Cocultures of Aspergillus and Saccharomyces has also been used in the manufacturing of fermentation process.…”

Section: Discussionmentioning

confidence: 99%

Microbial Mediated Production of Bio-ethanol from the Rhizome of Imperata cylindrica (L.) P. Beauv. (Spear Grass)

Stanley

Gbaje

Agbagwa

et al. 2019

AJB2T

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The microbial mediated production of bio-ethanol from the rhizome of Imperata cylindrica (spear grass) was carried out in this research work. Proximate analysis of the rhizome was done to determine the protein, carbohydrate, moisture, ash, lipid, and fibre contents. Sugar profile analysis was carried out using Gas Chromatography (GC). The sugars obtained from the rhizome include ribose, xylose, arabinose, rhamnose, fructose, glucose, maltose, lactose, and sucrose. Ethanol yield increased simultaneously from day 5 to day 20 for all reactors in six different experimental design i.e, Saccharomyces cerevisiae alone; Serratia marcescens alone, Aspergillus flavus + Saccharomyces cerevisiae; Apergillus flavus + Saccharomyces cerevisiae + Serratia marcescens; Aspergillus flavus + Serratia marcescens including the control (containing no microorganism). The highest ethanol yield was achieved at pH 7 and temperature range between 280C to 380C. The reducing sugar decreased from 0.37 to 0.03 g/mol as the period of incubation increased while cell density increased from 0.1 to 0.68 nm as the period of incubation increased. Reactor containing co-cultures of Saccharomyces cerevisiae, Serratia marcescens and Aspergillus flavus in combination produced the highest ethanol yield at day 20 while the reactor containing only Serratia sp produced the lowest ethanol yield. This study has demonstrated that the use of Saccharomyces cerevisiae, Serratia marcescens and Aspergillus flavus co-cultures is more effective in bio-ethanol production using I. cylindrica (spear grass) compared to individual cultures.

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Production of bioethanol from sugarcane bagasse using yeast strains: A kinetic study

Cited by 17 publications

References 10 publications

Enhancement and Mechanism of a Lignin Amphoteric Surfactant on the Production of Cellulosic Ethanol from a High-Solid Corncob Residue

Enhancement and Mechanism of a Lignin Amphoteric Surfactant on the Production of Cellulosic Ethanol from a High-Solid Corncob Residue

Cellulosic bioethanol production from Eragrostis airoides Nees grass collected from Northeast India

Microbial Mediated Production of Bio-ethanol from the Rhizome of Imperata cylindrica (L.) P. Beauv. (Spear Grass)

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