Cellulose solvent-based pretreatment for enhanced second-generation biofuel production: a review

Abstract

Cellulose solvent-based fractionation technologies can prove to be economical to enhance lignocellulosic biomass microbial conversion to fuels and chemicals.

Enzymatic Hydrolysis of Blend of Lignicellulosic Materials for Reducing Sugar Production: Screening of Significant Process Factors

“…It showed the positive impact of alkali pretreatment process on both corn cob and deseeded fluted pumpkin fruit as their cellulose contents increased from 44.24% and 32.08% to 51.67% and 36.75%, with consequent decrease in lignin contents from 17.61% and 15.27% to 16.21% and 13.48% respectively. The result agreed with the report by Satari et al [8] that NaOH is capable of reorganising the hydrogen bond network structure of cellulose thereby decreasing cellulose crystallinity and thus facilitates glucan digestibility. The table equally showed observable decrease in their hemicellulose content from 31.91% to 25.88% for corn cob, and 36.92% to 34.06% for deseeded fluted pumpkin fruit.…”

“…These, among other factors, cause a push for further research on improving the yield of bioethanol from second generation feedstock. These second generation feedstock comprising mainly of lignocellulosic materials have been reported to potentially contain large amount of energy and have the potential for bioethanol production [7] while equally offering the advantage of less competition to food [8]. However, large quantities of these wastes are underutilised in Nigeria [9].…”

A clean and effective potassium hydroxide pretreatment of corncob residue for the enhancement of enzymatic hydrolysis at high solids loading

“…With the increasing global demand of energy and the concern for the sustainable development of human society, it is urgent to explore alternative resources for the production of renewable energy. [1][2][3] Bioenergy (e.g., bioethanol) has been paid much attention over the past decades, because the feedstocks are abundant, readily available, and renewable lignocelluloses, including woods, agricultural wastes (e.g., wheat straw), industrial biomass wastes (e.g. corncob residue), etc.…”

Peer Review #1 of "An overview of biomass conversion: exploring new opportunities (v0.1)"

“…These so-called first-generation biofuel technologies necessarily raise ethical, environmental and political concerns due to the raw materials used in these processes. Therefore, second-generation technologies (Satari et al, 2019) are under constant development. These technologies can utilize lignocellulose-containing byproducts of agriculture and forestry, as well as industrial wastes or residues along with crops that are not used for food production.…”