Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Lignin Removal and Cellulose Digestibility Improved by Adding Antioxidants and Surfactants to Organosolv Pretreatment of Sugarcane Bagasse

Full text
Author(s):
Schmatz, Alison Andrei [1] ; Masarin, Fernando [2] ; Brienzo, Michel [1]
Total Authors: 3
Affiliation:
[1] Sao Paulo State Univ UNESP, Inst Res Bioenergy IPBEN, R 10, 2527 Santana, BR-13500230 Rio Claro, SP - Brazil
[2] Sao Paulo State Univ UNESP, Sch Pharmaceut Sci FCF, Dept Bioproc Engn & Biotechnol, Araraquara, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: BioEnergy Research; DEC 2021.
Web of Science Citations: 0
Abstract

Annually, tons of sugarcane bagasse are generated in the sugar and alcohol industries. This biomass has great potential in the use of converting cellulose into glucose, an energy currency for various biotechnological processes. However, lignin content is a limiting factor in cellulose accessibility. This study aimed to improve lignin removal by evaluating the additive's effect on biomass pretreatment. The additives were tert-butylhydroquinone, 3-tert-butyl-4-hydroxyanisole, methyl 3,4,5-trihydroxybenzoate; surfactants Tween 20, Tween 80, and dimethyl sulfoxide (DMSO). The antioxidants collaborated with lignin removal; the 3-tert-butyl-4-hydroxyanisole reached 71% of lignin removal. Inherent to the pretreatment, tert-butylhydroquinone showed 23.53% and 89.54% of cellulose and hemicellulose removal, respectively. Dioxane extraction compounds from the pretreated biomass showed an increased amount using additives, suggesting more compounds adsorbed on the material surface. All the antioxidants/surfactants applied to the organosolv pretreatment improved enzymatic hydrolysis, reaching 98.9% cellulose into glucose conversion (Tween 80). The use of chemical compounds during pretreatment beneficed the removal of lignin from biomass and consequently the cellulose hydrolysis. (AU)

FAPESP's process: 17/22401-8 - Fruit-refinery: obtention processes, characterization methods and generation of products derived from residues of the fruitculture
Grantee:Nelson Ramos Stradiotto
Support Opportunities: Research Projects - Thematic Grants