Production of hemicellulosic sugars from sugarcane bagasse via steam explosion employing industrially feasible conditions: Pilot scale study

Pilot-scale production of xylo-oligosaccharides and fermentable sugars from Miscanthus using steam explosion pretreatment

“…Moreover, very low concentrations of phenolic compounds were generated (Table 2c), such as p -coumaric and ferulic acid which are involved in crosslinking xylan and lignin in grasses (Carpita, 1996), and vanillin and syringaldehyde derived from the degradation of guaiacyl (G) and syringyl (S) units of lignin. Similar results were found for wheat straw and sugarcane bagasse using SE pretreatment (Álvarez et al, 2017, Huang et al, 2017, Silveira et al, 2018). The difference in pH values of the SE hydrolysate obtained from Mx2779 (4.3) and Mxg (3.7) (Table 2c) are likely a result of the initial amount of extractives and ash in the biomass causing a buffering effect.…”

“…Moreover, XOS have been shown to act as potent inhibitors of cellulase activity in converting glucan into fermentable sugars (Qing et al, 2010). Several xylan-rich agro-residues have been assessed for XOS production via SE pretreatment, including sugarcane bagasse (Carvalho et al, 2018, Silva et al, 2018, Silveira et al, 2018, Zhang et al, 2018), sugarcane straw (Oliveira et al, 2013), corn stover (Liu et al, 2013), and wheat straw (Álvarez et al, 2017, Huang et al, 2017). There have been limited efforts though to employ Miscanthus for the production of value-added XOS compounds.…”

Comparative analysis of key technologies for cellulosic ethanol production from Brazilian sugarcane bagasse at a commercial scale

“…Both C5 and C6 sugars, when converted by yeast, showed 80% conversion of theoretical yield (0.511 g kg −1 sugars) under industrial conditions yielding, finally, 202.92 kg ethanol from 1 ton of bagasse. The hemicellulose conversion into ethanol yields 73.96 kg ethanol/ton of bagasse, contributing 36.44% in overall ethanol conversion . Wyman and Dale found that 202 kg ethanol can be produced from 1 ton of corn stover under industrial conditions assessing their RaBIT process.…”

“…In fact, there are number of pretreatment technologies that exist; however, only a few processes match industry norms. Table presents some pilot‐scale studies on LB pretreatment that conform to industrially relevant parameters . Technology scouting enabled the best technology suited to particular LB and the conditions of production facility to be located.…”

Effect of steam explosion of oil palm frond and empty fruit bunch on nutrient composition and ruminal fermentation characteristics

“…OPF and EFB consist mainly of cellulose, hemicellulose, and lignin. Steam explosion may dissolve most hemicellulose in raw materials and degrade a small amount of cellulose and lignin, which will contribute to improved enzymatic accessibility (Silveira et al 2018). The collapse surface morphology was observed for OPF and EFB, which was probably due to the substantial depolymerization and decreased solubilization of lignin in steam explosion.…”