Multi-scale study of the integrated use of the carbohydrate fractions of sugarcane bagasse for ethanol and xylitol production

被引：39

作者：

Antunes, Felipe A. F. ^{[1
]}

Thome, Lucas C. ^{[1
]}

Santos, Julio C. ^{[1
]}

Ingle, Avinash P. ^{[1
]}

Costa, Cassiano B. ^{[2
]}

Dos Anjos, Virgilio ^{[2
]}

Bell, Maria J., V ^{[2
]}

Rosa, Carlos A. ^{[3
]}

Da Silva, Silvio S. ^{[1
]}

机构：

[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, Area 1,Estr Municipal Campinho S-N, BR-12602810 Lorena, SP, Brazil

[2] Univ Fed Juiz de Fora, Dept Phys, Mat Engn & Spect Grp, Univ Campus SN, BR-36036330 Juiz De Fora, MG, Brazil

[3] Univ Fed Minas Gerais, Inst Biol Sci, Av Pres Antonio Carlos 6627, BR-31270901 Belo Horizonte, MG, Brazil

来源：

RENEWABLE ENERGY | 2021年 / 163卷

基金：

巴西圣保罗研究基金会;

关键词：

Sugarcane bagasse; Sequential processes; Bioethanol; Xylitol; SSSCF; ENZYMATIC-HYDROLYSIS; PRETREATMENT; XYLOSE; FERMENTATION; CELLULOSE; FTIR; WOOD; HEMICELLULOSE; CHEMISTRY; SPECTRUM;

D O I：

10.1016/j.renene.2020.08.020

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A multi-scale study of sugarcane bagasse (SB) pretreatments and integrated developments for use of its carbohydrates portions for ethanol and xylitol production, are presented. In a first approach, after SB acid hydrolysis, hemicellulosic ethanol production was investigated, verifying ethanol yield of 0.31 g/g and volumetric productivity (Q(P)) of 0.1 g/L.h. Xylitol production was also studied, showing xylitol yield and Q(P) of 0.61 g/g and 0.38 g/L.h, respectively. Thus, remaining cellulignin from acid pretreatment was submitted to alkaline hydrolysis followed by Semi-Simultaneous Saccharification and Co-fermentation in sequential processes to ethanol production, by using mixture of SB hemicellulosic and enzymatic hydrolysate as carbon source, verifying Q(P) of 0.6 g/L.h. Moreover, a biomass multi-scale study was conducted by analysis of MEV, X-Ray, FTIR and Ramman Spectroscopy, verifying clear changes in SB structure along each pretreatment. These novel approaches indicated the potential of these integrated use of SB carbohydrates portion for bioproducts obtaining from SB in sustainable processes. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页码：1343 / 1355

页数：13

共 42 条

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JOURNAL OF CLEANER PRODUCTION, 2023, 395

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