Development of novel ternary deep eutectic pretreatment solvents from lignin-derived phenol, and its efficiency in delignification and enzymatic hydrolysis of peanut shells

Aiping Lu, Xiaojie Yu, Li Chen, Clinton Emeka Okonkwo, Phyllis Otu, Cunshan Zhou, Qiaomin Lu and Qiaolan Sun

Renewable Energy, 2023, vol. 205, issue C, 617-626

Abstract: This work evaluated the effectiveness of a novel deep eutectic solvents (DES) prepared from guaiacol (GG), and p-hydroxybenzoic acid (PB) as a double hydrogen bond donor and choline chloride (ChCl) as a hydrogen bond receptor. The effect of ChCl-GG-PB on the structural properties and enzymatic hydrolysis of peanut shell was analyzed. Furthermore, the performance of ChCl-GG-PB as a hydrogen bond donor was compared with two other DES of PB and GG as hydrogen bond donors, and the effects of molar ratio, temperature and time were studied. The results showed that after ChCl-GG-PB pretreatment, hemicellulose and lignin were effectively removed, the removal rate was about 63.36% and 69.54%, respectively, and the enzymatic glycosaccharification efficiency was significantly improved, of which the xylose content was 5.5 times higher than the untreated. In addition, ChCl-GG-PB pretreated showed significant changes in the structure and morphology, with the highest crystallinity and lowest solid recovery. These results affirms that the proposed novel ternary DES is a promising pretreatment solvent that can effectively deconstruct lignocellulose and improve cellulose digestibility, thereby achieving an economically viable biomass conversion method.

Keywords: Renewable ternary deep eutectic solvents; Lignin removal rate; Peanut shell; Cellulose hydrolysis (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148123000848
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:205:y:2023:i:c:p:617-626

DOI: 10.1016/j.renene.2023.01.075

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().