Sieving process selects sugarcane bagasse with lower recalcitrance to xylan solubilization

Autor(es)

Alves, Rosangela C. ^[1] ; Melati, Ranieri B. ^[1] ; Casagrande, Giovanna M. S. ^[1] ; Contiero, Jonas ^[2] ; Pagnocca, Fernando C. ^[2] ; Brienzo, Michel ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo State UNESP, Inst Res Bioenergy IPBEN, Rio Claro, SP - Brazil

^[2] Univ Sao Paulo State UNESP, Biochem & Microbiol Dept, Rio Claro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY; v. 96, n. 2, p. 327-334, FEB 2021.
• Citações Web of Science: 10

Resumo

BACKGROUND Sugarcane bagasse is a heterogeneous and organized material that needs a pretreatment to access the polysaccharides (cellulose and xylan). The particle size of a non-milled bagasse can influence the xylan and xylose solubilization, as well as the enzymatic hydrolysis of the pretreated material. Using bagasse selected on 16-, 30-, 40- and 50-mesh sieves: xylan solubilization was performed with hydrogen peroxide; xylose was solubilized with diluted sulfuric acid; and enzymatic hydrolysis was conducted for glucose yield evaluation. RESULTS The xylose solubilized by acid pretreatment resulted in a maximum of 6.59 g L(-1)with no influence of particle size. The solubilized xylan showed linear correlation with a variation of 36.18% (16-mesh bagasse) to 71.43% (<50-mesh bagasse). Pretreated material submitted to enzymatic hydrolysis revealed that particle size influenced the pretreatment, increasing the glucose yield. CONCLUSIONS The results showed that non-milled sugarcane bagasse particle size selection positively influenced the solubilization of xylan, improving the enzymatic hydrolysis of the pretreated material. (c) 2020 Society of Chemical Industry (SCI) (AU)

• Processo FAPESP: 17/11345-0 - Fracionamento da biomassa e efeito da deslignificação e na extração de hemicelulose e produção de derivados
• Beneficiário: Michel Brienzo
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular