ETHANOL PRODUCTION FROM SUGARCANE BAGASSE USING SSF PROCESS AND THERMOTOLERANT YEAST

被引：6

作者：

Silva, G. M. ^{[1
]}

Giordano, R. L. C. ^{[1
]}

Cruz, A. J. G. ^{[1
]}

Ramachandriya, K. D. ^{[2
]}

Banat, I. M. ^{[3
]}

Wilkins, M. R. ^{[2
]}

机构：

[1] Univ Fed Sao Carlos, Dept Chem Engn, BR-13565905 Sao Carlos, SP, Brazil

[2] Oklahoma State Univ, Dept Biosyst & Agr Engn, Stillwater, OK 74078 USA

[3] Univ Ulster, Sch Biomed Sci, Coleraine BT52 1SA, Londonderry, North Ireland

来源：

TRANSACTIONS OF THE ASABE | 2015年 / 58卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

Enzymatic hydrolysis; Ethanol; Hydrothermolysis; Kluyveromyces marxianus IMB3; SSF; Sugarcane bagasse; STEAM EXPLOSION PRETREATMENT; KLUYVEROMYCES-MARXIANUS IMB4; HOT-WATER PRETREATMENT; SIMULTANEOUS SACCHARIFICATION; SACCHAROMYCES-CEREVISIAE; HYDROTHERMAL PRETREATMENT; BIOETHANOL PRODUCTION; ENZYMATIC-HYDROLYSIS; KANLOW SWITCHGRASS; EASTERN REDCEDAR;

D O I：

10.13031/trans.58.11024

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Sugarcane bagasse (SCB) pretreated by hydrothermolysis at 195 degrees C for 10 min was used as a substrate for ethanol production in a simultaneous saccharification and fermentation (SSF) process with the thermotolerant yeast Kluyveromyces marxianus IMB3 at 45 degrees C. SSF was carried out for 7 days using 15 and 30 filter paper units (FPU) cellulase g(-1) treated SCB (Accellerase 1500) to determine the effect of enzyme loading on ethanol production. Different pretreated dry solids loadings of 10% and 15% (w/w) were investigated in this work during enzymatic hydrolysis. Results showed 89.7% hemicellulose removal during pretreatment and glucan recovery of 97.8%. The highest ethanol concentration of 29.2 g L-1 was obtained with 30 FPU cellulase g(-1) treated SCB within 72 h, which was equivalent to 58.9% of the maximum theoretical ethanol yield.

引用

页码：193 / 200

页数：8

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