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Sieving process selects sugarcane bagasse with lower recalcitrance to xylan solubilization
Author(s) -
Alves Rosângela C,
Melati Ranieri B,
Casagrande Giovanna MS,
Contiero Jonas,
Pagnocca Fernando C,
Brienzo Michel
Publication year - 2021
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.6541
Subject(s) - bagasse , xylan , xylose , chemistry , enzymatic hydrolysis , hydrolysis , cellulose , yield (engineering) , particle size , nuclear chemistry , biochemistry , chromatography , pulp and paper industry , materials science , fermentation , composite material , engineering
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. © 2020 Society of Chemical Industry (SCI)