Processing of wheat bran to sugar solution

Chotěborská, Pavla; Palmarola-Adrados, Beatriz; Galbe, Mats; Zacchi, Guido; Melzoch, Karel; Rychtera, M.

doi:10.1016/s0260-8774(03)00216-4

Cited by 41 publications

(17 citation statements)

References 13 publications

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“…Hexoses and pentose degradation under more severe pretreatment conditions resulted in an increased yield of HMF and furfural, respectively. The concentrations of HMF and furfural in the hydrolysate are highly dependent on the temperature, residence time and acid concentration in the hydrolysis, and more severe conditions give higher yields of inhibitors [7]. In the hydrolysate of wheat bran, the concentration of furfural and HMF were 0.1 and 0.13 g/l, respectively.…”

Section: Resultsmentioning

confidence: 99%

Butanol production by Clostridium beijerinckii ATCC 55025 from wheat bran

Liu

et al. 2010

J Ind Microbiol Biotechnol

176

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Wheat bran, a by-product of the wheat milling industry, consists mainly of hemicellulose, starch and protein. In this study, the hydrolysate of wheat bran pretreated with dilute sulfuric acid was used as a substrate to produce ABE (acetone, butanol and ethanol) using Clostridium beijerinckii ATCC 55025. The wheat bran hydrolysate contained 53.1 g/l total reducing sugars, including 21.3 g/l of glucose, 17.4 g/l of xylose and 10.6 g/l of arabinose. C. beijerinckii ATCC 55025 can utilize hexose and pentose simultaneously in the hydrolysate to produce ABE. After 72 h of fermentation, the total ABE in the system was 11.8 g/l, of which acetone, butanol and ethanol were 2.2, 8.8 and 0.8 g/l, respectively. The fermentation resulted in an ABE yield of 0.32 and productivity of 0.16 g l(-1) h(-1). This study suggests that wheat bran can be a potential renewable resource for ABE fermentation.

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Section: Resultsmentioning

confidence: 99%

Butanol production by Clostridium beijerinckii ATCC 55025 from wheat bran

Liu

et al. 2010

J Ind Microbiol Biotechnol

176

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“…below 100 ºC) is not able to break the cross-links between the WUAXs and the wall matrix (Izydorczyk & Biliaderis, 2007). In order to improve the AXs extraction yield from different biomass, several techniques, such as hydrothermal treatments (Bobleter, 1994;Buranov & Mazza, 2010;Carvalheiro, Garrote, Parajó, Pereira, & Gírio, 2005;Dien et al, 2006;Garrote, Domínguez, & Parajó, 1999;Garrote, Domínguez, & Parajó, 2001;Garrote, Domínguez, & Parajó, 2002;Kim, Hendrickson, Mosier, & Ladisch, 2009;Lavarack, Griffin, & Rodman, 2000;Li, Converse, & Wyman, 2003;Maes & Delcour, 2002;Mok & Antal, 1992;Nabarlatz, Farriol, & Montané, 2004;Negahdar, Delidovich, & Palkovits, 2016;Reisinger et al, 2013;Shen & Wyman, 2011;Tekin et al, 2014), chemical-solvent extractions (Adams et al, 1955;Aguedo, Fougnies, Dermience, & Richel, 2014;Bataillon, Mathaly, Nunes Cardinali, & Duchiron, 1998;Buranov & Mazza, 2010;Choteborská et al, 2004;Doner, Chau, Fishman, & Hicks, 1998;Höije, Gröndahl, TØmmeraas, & Gatenholm, 2005;Hollmann & Lindhauer, 2005;Kim, Kreke, & Ladisch, 2013;Kusema et al, 2011;Lavarack, Griffin, & Rodman, 2002;Maes & Delcour, 2002;Shen & Wyman, 2011;Swennen, Courtin, Lindemans, & Delcour, 2006;Xu et al, 2006;Yao, Nie, Yuan, Wang, & Qin, 2015;…”

Section: Introductionmentioning

confidence: 99%

Extraction of arabinoxylans from wheat bran using hydrothermal processes assisted by heterogeneous catalysts

Sanchez‐Bastardo

Romero

Alonso

2017

Carbohydrate Polymers

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The extraction/hydrolysis process of arabinoxylans from destarched wheat bran was studied in this work using different mesoporous silica supports and the corresponding RuCl3-based catalysts. The effects of temperature, time, catalyst supports and ruthenium catalysts were investigated and discussed in terms of the arabinoxylans extraction yield and their polymerization degree. Relatively high temperatures (180 ºC), short extraction times (10 minutes) and RuCl3 supported on Al-MCM-48 led to a high amount of arabinoxylans extracted (78%) with a low molecular weight (9 KDa). Finally, a relation between the operating conditions, the arabinoxylans extraction yield and the molecular weight was stablished based on the obtained results. Abbreviation: AXs, arabinoxylans; DWB, destarched wheat branKeywords: Hemicelluloses fractionation, wheat bran, arabinoxylans, heterogeneous catalysis, hydrothermal process, biomass Chemical compounds studied in this articleXylose (PubChem CID: 135191); Arabinose (PubChem CID: 439195) Highlights:-Effects of ruthenium catalyst, temperature, time and catalyst support are discussed -RuCl3-based catalysts show good activity for the arabinoxylans extraction from wheat bran -Liquid extracts are characterized in terms of sugars, molecular weight and purity

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“…In addition to the starch content (15-30% dry matter), the hemicellulose and cellulose fractions can also be used for bioethanol production [24]. Although wheat bran does not require costly pre-treatments for hydrolysis [15,25], not many studies have used this substrate for ethanol production [26].…”

Section: Introductionmentioning

confidence: 99%

Utilisation of wheat bran as a substrate for bioethanol production using recombinant cellulases and amylolytic yeast

et al. 2015

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Wheat bran, generated from the milling of wheat, represents a promising feedstock for the production of bioethanol. This substrate consists of three main components: starch, hemicellulose and cellulose. The optimal conditions for wheat bran hydrolysis have been determined using a recombinant cellulase cocktail (RCC), which contains two cellobiohydrolases, an endoglucanase and a beta-glucosidase. The 10% (w/v, expressed in terms of dry matter) substrate loading yielded the most glucose, while the 2% loading gave the best hydrolysis efficiency (degree of saccharification) using unmilled wheat bran. The ethanol production of two industrial amylolytic Saccharomyces cerevisiae strains, MEL2[TLG1-SFA1] and M2n [TLG1-SFA1], were compared in a simultaneous saccharification and fermentation (SSF) for 10% wheat bran loading with or without the supplementation of optimised RCC. The recombinant yeasts. cerevisiae MEL2[TLG1-SFA1] and M2n[TLG1-SFA1] completely hydrolysed wheat bran's starch producing similar amounts of ethanol (5.3 +/- 0.14 g/L and 5.0 +/- 0.09 g/L, respectively). Supplementing SSF with RCC resulted in additional ethanol production of about 2.0 g/L. Scanning electron microscopy confirmed the effectiveness of both RCC and engineered amylolytic strains in terms of cellulose and starch depolymerisatio

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Processing of wheat bran to sugar solution

Cited by 41 publications

References 13 publications

Butanol production by Clostridium beijerinckii ATCC 55025 from wheat bran

Butanol production by Clostridium beijerinckii ATCC 55025 from wheat bran

Extraction of arabinoxylans from wheat bran using hydrothermal processes assisted by heterogeneous catalysts

Utilisation of wheat bran as a substrate for bioethanol production using recombinant cellulases and amylolytic yeast

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