Pretreatment of sugarcane postharvest leaves by γ-valerolactone/water/FeCl3 system for enhanced glucan and bioethanol production

Palliprath, Suchithra; Poolakkalody, Najya Jabeen; Ramesh, Kaviraj; Mangalan, Starlet Marath; Kabekkodu, Shama Prasada; Santiago, Rogelio; Manisseri, Chithra

doi:10.1016/j.indcrop.2023.116571

Cited by 9 publications

(4 citation statements)

References 99 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pretreatment also made the pretreated biomass’ surface favorable for cellulases’ adsorption . Another study that employed FeCl 3 at 0.3 M concentration gave satisfactory delignification yields (74%), as well as the removal of ester-linked ferulic acid and p -coumaric acid …”

Section: Gvl Pretreatment Of Lignocellulosic Feedstocksmentioning

confidence: 99%

“…In another work, GVL recovered was reused in a second cycle of pretreatment of postharvest leaves with the identical solvent system comprising FeCl 3. 69% delignification yield was observed with the recycled solvent whereas 74% delignification was achieved with the pristine solvent . A two-step nonenzymatic approach using GVL/water solvent systems at different ratios and varying H 2 SO 4 concentrations was applied to bamboo shoot shells, and the resulting sugar solution obtained following GVL recovery with a nonpolar solvent, nonylphenol, was fermented.…”

Section: Separation Strategies For the Recovery Of Gvl And Product St...mentioning

confidence: 99%

“…66 Another study that employed FeCl 3 at 0.3 M concentration gave satisfactory delignification yields (74%), as well as the removal of ester-linked ferulic acid and p-coumaric acid. 84 Solid heteropoly acids such as silicotungstic acid, phosphomolybdic acid, and phosphotungstic acid were used for their ability to selectively remove lignin from poplar in the GVL/ water system. Using 30 mM of silicotungstic acid at 140 °C for 3 h resulted in the removal of over 91% of the original lignin content and the recovery of 85% of the original cellulose content.…”

Section: Gvl Pretreatment Of Lignocellulosic Feedstocksmentioning

confidence: 99%

“…69% delignification yield was observed with the recycled solvent whereas 74% delignification was achieved with the pristine solvent. 103 A twostep nonenzymatic approach using GVL/water solvent systems at different ratios and varying H 2 SO 4 concentrations was applied to bamboo shoot shells, and the resulting sugar solution obtained following GVL recovery with a nonpolar solvent, nonylphenol, was fermented. Roughly 75% ethanol yield (based on the maximum ethanol produced from the initial sugar concentration) was achieved.…”

Section: Use Of Cosolventsmentioning

confidence: 99%

See 3 more Smart Citations

Challenges and Opportunities for Gamma-Valerolactone in Biomass Pretreatment

Haykir,

Viell

2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Solvent-aided biomass pretreatment strategies for biorefineries need to address several key points including effective biomass valorization, energy demand, and waste minimization. More specifically, solvents' yield, recovery, and recycling are crucial parameters to improve biorefineries' environmental and economic performances. Gamma-valerolactone (GVL) presents significant promise in biomass pretreatment due to its ability to effectively remove hemicellulose and lignin or provide near-complete biomass solubilization and facilitate hydrolysis. However, GVL utilization is challenging due to its higher cost and the difficulty of recycling it as a high-boiling solvent. Herein, we discuss biomass pretreatment with GVL and solvent recovery. GVL recovery, being conceptual at this stage, has to be proven in the field. It could be realized through liquid−liquid extraction. However, most studies do not address the reutilization of GVL, the separation of heavy-boiling impurities, or the solid−liquid separation of the remaining solids, which are significant gaps in the literature and a limitation to industrialization.

show abstract

Section: Gvl Pretreatment Of Lignocellulosic Feedstocksmentioning

confidence: 99%

Section: Separation Strategies For the Recovery Of Gvl And Product St...mentioning

confidence: 99%