Simultaneous saccharification and co-fermentation of glucose and xylose in steam-pretreated corn stover at high fiber content with Saccharomyces cerevisiae TMB3400

Potential of Agricultural Residues and Hay for Bioethanol Production

“…The liquid streams obtained during acid and alkaline pretreatment likely contained fermentable sugars and inhibitory substances [furfural, hydroxymethyl furfural (HMF), acetic acid] released from the breakdown of hemicellulose [44]. Recovery and fermentation of sugars from the pretreatment liquid requires either expensive detoxification procedures (overliming, steam stripping, adsorption, ion exchange) or genetically engineered yeast strains [45][46][47] and was therefore not investigated in this bench scale study.…”

Comparative Alterations in the Compositional Profile of Selected Root and Vegetable Peels Subjected to Three Pretreatments for Enhanced Saccharification

“…Bioethanol is regarded as the best alternative to petroleum-based fuel, due to its high O2 content (35%) and ability to reduce the emission of toxic gases which contribute to greenhouse effect [2,3]. Lignocellulosic biomass (LCBs) is identified as the best raw material for bioethanol production due to several factors such as abundant and cheap global availability, non-food resource and effective waste valorization potential [4,5].…”

“…Starch, being a major component of the selected biomasses, their pretreatment approaches and resulting compositional alterations may also be different from conventional LCBs. Dilute sulfuric acid (DSA) has been widely used for the deconstruction of cellulose in agricultural residues, woody and herbaceous crops [3,20,21,22] found that acid pretreatment causes disruption of covalent and hydrogen bonds as well as Vanderwaals forces which hold the biomass components, leading to solubilization of hemicellulose and reduction in cellulose crystallinity. Nevertheless, acid pretreatment has certain disadvantages such as the need for corrosion-resistant reactors, less efficiency of lignin removal and formation of inhibitors such as furfural, 5-hydroxymethyl furfural and acetic acid [23].…”

A review of conversion processes for bioethanol production with a focus on syngas fermentation

“…Strains of Saccharomyces cerevisiae and Zymomonas mobilis are genetically engineered to co-ferment both glucose and xylose (Dien et al, 2003;Hahn-Hägerdal et al, 2007;Öhgren et al, 2006;Zhang et al, 1995).…”