Enhanced ethanol and glucosamine production from rice husk by NAOH pretreatment and fermentation by fungus Mucor hiemalis

Omidvar, Maryam; Karimi, Keikhosro; Mohammadi, Marzieh

doi:10.18331/brj2016.3.3.7

Cited by 18 publications

(6 citation statements)

References 33 publications

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“…From this study, 90mins pretreatment time with 2% NaOH was found to be more effective for pretreatment of rice bran and maximum ethanol yield was obtained. Omidvar et al, [16] reported 2.6M NaOH at 67°C for 150 minas optimum pretreatment condition of rice husk in their study of enhanced ethanol and glucosamine production from rice husk by NaOH pretreatment and fermentation by Mucor hiemalis. However the effect of alkaline pretreatment method depends on lignin content of lignocellulosic biomass McMillan [24].…”

Section: Discussionmentioning

confidence: 99%

“…Simultaneous saccharification and fermentation that is, hydroylosis and fementation was carried out in same vessel according to the method described by Omidvar et al, [16]…”

Section: Simultaneous Saccharification and Fermentation With S Cerevmentioning

confidence: 99%

“…Simultaneous sacharification and fermentation for ethanol production with fungi was conducted as described by Omidvar et al, [16]…”

Section: Simultaneous Saccharification and Fermentation With Mucor Inmentioning

confidence: 99%

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Potential of Bran from Two Varieties of Rice (Oryza) Spp for Bioethanol Production

Musa

Abdullahi

El-Yakub

et al. 2020

JABB

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Second generation ethanol is produced from non-food based including waste from food crops, wood chips and agricultural residue. Lignocellulosic and starchy materials in them are converted to fermentable sugars which are further processed to produce bioethanol. Rice bran is an agricultural residue with abundant carbohydrate for bioconversion into ethanol. This study was designed to evaluate the potential of two varieties of rice bran (Sipi and Wita) to produce bioethanol. Compositional analysis of Wita rice bran showed 40% cellulose, 23% hemicellulose and 16% lignin content. Sipi variety contains 35% cellulose, 27% hemicellulose and 13% lignin content. Sodium hydroxide pretreatment was carried out at different concentrations (0.5%, 1%, 2% and 3%) and residence time of (15, 30, 60, and 90min). It was observed from the present study, pretreatment of rice bran with 2% NaOH for 90min is considered as effective pretreatment condition for bioethanol production from rice bran. Simultaneous saccharification and fermentation of cellulosic biomass was carried out for 72h with Saccharomyces cerevisae and Mucor indicus. Fermentation of Wita variety with S.cerevisiae produced highest bioethanol yield of 1.36% while Mucor indicus produced 0.75% bioethanol yield. From the result of these findings, it can be concluded that rice bran could be considered as a promising substrate for the fermentation of second generation ethanol.

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Section: Discussionmentioning

confidence: 99%

“…Simultaneous saccharification and fermentation that is, hydroylosis and fementation was carried out in same vessel according to the method described by Omidvar et al, [16]…”

Section: Simultaneous Saccharification and Fermentation With S Cerevmentioning

confidence: 99%

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Potential of Bran from Two Varieties of Rice (Oryza) Spp for Bioethanol Production

Musa

Abdullahi

El-Yakub

et al. 2020

JABB

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show abstract

“…Yoo et al subjected the substrate with ammonia treatment before applying hot water pretreatment. Omidvar et al pretreated rice husk at 0°C to 100°C, with NaOH concentration 1 to 3 M for the time of 30 to 180 minutes. Further on simulators saccharification and fermentation it produced 86.7% ethanol produce.…”

Section: Organic Solventsmentioning

confidence: 99%

Future prospects of delignification pretreatments for the lignocellulosic materials to produce second generation bioethanol

Baig

Turcotte

2019

Int J Energy Res

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Summary Production of bioethanol is winning support from masses because it is a workable choice to solve the problems associated with the fluctuating prices of crude petroleum oil, climatic change, and reducing non‐renewable fuel reserves. First‐generation biofuels are produced directly from food crops. The biofuel (bioethanol, biodiesel) is ultimately derived from the starch, sugar, animal fats, and vegetable oil that these crops provide. It is important to note that the structure of the biofuel itself does not change between generations, but rather the source from which the fuel is derived changes. Corn, wheat, and sugar cane are the most commonly used first‐generation bioethanol feed stocks. Lignocellulosic materials are used as a feed stock for the production of second‐generation bioethanol. The major production steps are (1) delignification, (2) depolymerisation, and (3) fermentation. Agricultural residues are waste materials produced through the processing of agricultural crops. The main reason to use of these agricultural residues to produce bioethanol is to convert waste to value added products. The main challenges are the low yield of the cellulosic hydrolysis process due to the presence of lignin and hemicellulose with cellulose. Pretreatments of lignocellulosic materials to remove lignin and hemicellulose are the techniques used to enhance the hydrolysis. Present review article comprehensively discusses the different pretreatment methods of delignification for ethanol production. Published literature on pretreatments from 1982 to 2018 has been studied. Perspectives, gaps in studies, and recommendations are given to fully describe implementation of eight prominent pretreatments (milling, pyrolysis, organic solvents, steam explosion, hot water treatments, ozonolysis, enzymatic delignification, and genetic modification) for future research. The energy and environmental features of lignocellulosic materials are elaborated to show a sustainable aspect of second‐generation biofuel. It was felt necessary to discuss the concept of bio refinery to make biofuel production financially more attractive as well because the future prospects of second‐generation biofuel are promising.

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“…For example, Brazil, with its experience of more than 40 years in bioethanol production at the commercial scale, depends on sugarcane molasses (Lopes et al, 2016). In Asian and African countries, rice straw (Singh et al, 2017) and rice husks (Omidvar et al, 2016) are the locally available feedstocks for bioethanol production. The waste generated from oil palm tree is the principal source for bioethanol production in countries such as Indonesia, Thailand, and Malaysia (Shahirah et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Value addition to Pongamia biodiesel industry through bioethanol production from pressed oil cake using Bacillus cereus

Venkatesh¹,

Rao²

2020

bta

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Pongamia pinnata, a tree bearing oil seeds, has been one of the prime focus among nonedible oil sources for biodiesel production in most parts of India. The oil cake obtained after the extraction of oil serves as an adequate source of cellulose, hemicellulose, proteins, lipids, and starch. The scarce literature data available suggest very low conversion rate of complex sugars to fermentable sugars and further to bioethanol. In the present work, a sulfuric acid hydrolysate obtained from Pongamia oil cake (POC) under microwave irradiation was anaerobically fermented using Bacillus cereus ATCC 14579. Under anaerobic and acidic conditions, the process parameters affecting the bioethanol production efficiency (BPE) were screened and optimized using statistical experimental designs. Of the seven parameters screened (glucose concentration, yeast extract as nitrogen source, agitation speed, pH, inoculum size, fermentation time, and temperature), only 3 were found to be significant and to increase BPE. The significant parameters were optimized using the Box-Behnken experimental design to obtain an optimal condition of 9 g/l reducing sugars, pH 4.6 maintained with acetate buffer, and fermentation period of 51 h that yielded 92% BPE with 4.2 g/l ethanol. Moreover, it was observed that the use of a buffer system to maintain broth pH, especially acetate buffer, significantly improved BPE. Low concentration of fermentation inhibitors is the key factor for improved BPE. The research outcome suggests that the production of dual fuel from Pongamia pinnata, viz. biodiesel and bioethanol, could not only improve the process economics but also reduce waste generation.

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Enhanced ethanol and glucosamine production from rice husk by NAOH pretreatment and fermentation by fungus Mucor hiemalis

Cited by 18 publications

References 33 publications

Potential of Bran from Two Varieties of Rice (Oryza) Spp for Bioethanol Production

Potential of Bran from Two Varieties of Rice (Oryza) Spp for Bioethanol Production

Future prospects of delignification pretreatments for the lignocellulosic materials to produce second generation bioethanol

Value addition to Pongamia biodiesel industry through bioethanol production from pressed oil cake using Bacillus cereus

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