Bioethanol production from agricultural wastes: An overview

Sarkar, Nibedita; Ghosh, Sumanta Kumar; Bannerjee, Satarupa; Aikat, Kaustav

doi:10.1016/j.renene.2011.06.045

Cited by 1,484 publications

(772 citation statements)

References 86 publications

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“…The structural complexity of lignocellulosic biomass, generally defined as recalcitrance, hampers microbial and enzymatic treatments (PU et al, 2013), thereby becoming a critical factor for the use of lignocellulosic residues in the production of biofuels. Pretreatment of biomass for conversion to 2G ethanol (second generation ethanol) has shown to be challenging because it must eliminate lignin, reduce crystallinity of cellulose, and dissolve hemicellulose, turning the biomass into a feedstock more susceptible to biological and chemical hydrolysis (SARKAR et al, 2012). Thus, in order to be considered effective, pretreatment methods have to yield large amounts of fermentable sugars, avoiding waste of biomass, degradation of carbohydrates, and formation of inhibitors of hydrolysis and fermentation, being economically viable (SILVA et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Bioethanol production from coconut husk fiber

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Bioethanol production from coconut husk fiber

et al. 2016

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“…Agricultural wastes (agrowastes) were considered one of these sources that serve dual purpose of waste disposal (an environmental concern) and production of biofuel (an energy concern). Rice straw, wheat straw, corn straw and bagasse were considered the four major agrowastes feed-stocks for bioethanol production due to their availability throughout the year [5]. The conventional technique of producing bioethanol is by yeast fermentation of sugars under certain conditions or by hydrolysis of grain to glucose followed by yeast fermentation [6].…”

Section: Introductionmentioning

confidence: 99%

Production of Bioethanol Fuel from Low-Grade-Date Extract

Sulieman¹,

Gaily²,

Zeinelabdeen³

et al. 2013

IJCEA

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Abstract-Experiments on production of bioethanol through anaerobic fermentation of sugars extracted from low-quality dates using a wild strain of Saccharomyces cerevisiae were conducted at 30C and 33C. The effect of the pH during fermentation was insignificant at the operating temperatures.The average ethanol yield for all experiments was greater than 71% of its theoretical value. Experiments in a 1L volume fermentor at 30C and 120 rpm without controlling the pH during fermentation gave ethanol yields of 91.3%, 68.7% and 54.8 % for the 10, 15 and 20% initial sugar concentrations, respectively. The drop in ethanol yield for 20% sugars could be attributed to probable ethanol inhibition.

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“…The research findings presented in this paper expand the existing knowledge about the treatment and enzymatic hydrolysis of other types of biomass for energy production. They also provide valuable information for analyses of biomass markets and energy generation from renewable sources in view of environmental protection standards, which can be found in the works by Kowalski and Lelek (2011), Rosik-Dulewska et al (2011), Sarkar et al (2012, and Sanderson (2006). CONCLUSIONS 1.…”

Section: Resultsmentioning

confidence: 96%

Influence of the crystalline structure of cellulose on the production of ethanol from lignocellulose biomass

Smuga‐Kogut¹,

Zgórska²,

Szymanowska³

2016

International Agrophysics

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A b s t r a c t. In recent years, much attention has been devoted to the possibility of using lignocellulosic biomass for energy. Bioethanol is a promising substitute for conventional fossil fuels and can be produced from straw and wood biomass. Therefore, the aim of this paper was to investigate the effect of 1-ethyl-3-methylimidazolium pretreatment on the structure of cellulose and the acquisition of reducing sugars and bioethanol from cellulosic materials. Material used in the study was rye straw and microcrystalline cellulose subjected to ionic liquid 1-ethyl-3-methylimidazolium pretreatment. The morphology of cellulose fibres in rye straw and microcrystalline cellulose was imaged prior to and after ionic liquid pretreatment. Solutions of ionic liquid-treated and untreated cellulosic materials were subjected to enzymatic hydrolysis in order to obtain reducing sugars, which constituted a substrate for alcoholic fermentation. An influence of the ionic liquid on the cellulose structure, accumulation of reducing sugars in the process of hydrolysis of this material, and an increase in ethanol amount after fermentation was observed. The ionic liquid did not affect cellulolytic enzymes negatively and did not inhibit yeast activity. The amount of reducing sugars and ethyl alcohol was higher in samples purified with 1-ethyl-3-methylimidazolium acetate. A change in the supramolecular structure of cellulose induced by the ionic liquid was also observed.

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Bioethanol production from agricultural wastes: An overview

Cited by 1,484 publications

References 86 publications

Bioethanol production from coconut husk fiber

Bioethanol production from coconut husk fiber

Production of Bioethanol Fuel from Low-Grade-Date Extract

Influence of the crystalline structure of cellulose on the production of ethanol from lignocellulose biomass

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