Aug 2026· Biofuels, Bioproducts and Biorefining· 0 citations· 49 references
Abstract
Green coconut waste was subjected to different fractionation methods to obtain integrated lignin nanoparticles and cellulosic ethanol. Pretreatment with gradual addition of dilute sulfuric acid provided a higher structural hemicellulose precursor yield (68.2%). Alkaline treatment resulted in the highest extraction and recovery of lignin from coconut waste, at 79.5% and 25.3%, respectively. Separate hydrolysis and fermentation indicated that slow acid addition followed by alkaline treatment rendered the coconut biomass more susceptible to enzymatic digestion, achieving sugar yields above 60% and an ethanol yield of 0.48 (w/w). Alkaline lignin from coconut fibers was successfully converted into nanometric structures of spherical conformation (
Ø
= 80–600 nm) with a high degree of uniformity, homogeneous dispersion, and colloidal stability, with weight yields of 30% to 50%. Thus, utilizing coconut waste to obtain cellulosic ethanol and lignin nanoparticles is feasible and results in value‐added products and an environmentally sustainable alternative to waste disposal.
Achieving efficient delignification while preserving the native structure of lignin remains a critical challenge for integrated bamboo biorefineries. In this study, a ternary deep eutectic solvent (DES) composed of (Benzyltriethylammonium chloride) TEBAC, ethylene glycol (EG), and p-toluenesulfonic acid (p-TsOH) was de...
Yaoyao Jin, Zi-Dong Xu, Haiyan Yang et al.· Bioresource Technology· 1 citation
Development of pretreatment to reduce biomass recalcitrance is essential to produce fermentable sugars, which is used as carbon sources for microorganisms to synthesize biofuels. Lignin in lignocellulose is generally removed by alkaline pretreatment (e.g., NH4OH, ethanediamine), while the severe environment causes equi...
Yu Shao, Wen-Jing Yang, Ting-Ting Liu et al.· ChemSusChem· 0 citations
An integrated strategy was developed to promote conversion of a sugarcane bagasse cellulose-rich fraction into water-soluble cellulosic oligomers (WCOs) through phosphoric acid-mediated regeneration and enzymatic hydrolysis. Alkaline pretreatment on sugarcane bagasse powder increased glucan content from 57.6 to 93.4 g/...
Chiou-Yeong Saw, David Agus Setiawan Wibisono, Tsung-Yen Wu et al.· Journal of Food and Drug Ana...· 0 citations
A holistic biorefinery concept integrating cell wall deconstruction, downstream separation and purification steps to convert brewers' spent grains (BSG) into high-value fractions was developed using alkali and deep eutectic solvents. Protein and arabinoxylan yields significantly increased with ultrasound (US) pretreatm...
David Nkurunziza, T. Pukala, Vincent Bulone et al.· Food Chemistry· 0 citations
This study investigates the conversion of sugarcane bagasse into fermentable sugars through an integrated alkaline pretreatment and synergistic enzymatic hydrolysis strategy. Dilute NaOH pretreatment (1% NaOH, 150°C, 60 min) effectively modified biomass structure, achieving approximately 59% lignin removal and 69.6% de...
Giap Vu Dinh, Huong Ta Thi· E3S Web of Conferences· 0 citations
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