Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/15454
ชื่อเรื่อง: Bioethanol production from enzymatically saccharified sunflower stalks using steam explosion as pretreatment
ผู้แต่ง: Vaithanomsat P.
Chuichulcherm S.
Apiwatanapiwat W.
Keywords: Bio-ethanol production
Cellulose pulp
Chemical compositions
Citrate buffer
Dry weight
Enzymatic
Enzymatic saccharification
Ethanol production
Ethanol yield
Fixed-bed
Holocellulose
Optimum conditions
Pre-Treatment
Steam explosion
Sunflower stalk
Sunflower stalks
Biochemical engineering
Bioethanol
Cellulose
Ethanol
Explosions
Explosives
Glucose
Saccharification
Sugar (sucrose)
Steam
Biotechnology
Cellulose
Enzymes
Ethanol
Helianthus
Saccharification
Steam
Sucrose
วันที่เผยแพร่: 2009
บทคัดย่อ: Sunflower stalks were analysed for chemical compositions: pentosan 15.84%, holocellulose 70.69%, alphacellulose 45.74%, glucose 27.10% and xylose 7.69% based on dry weight of 100-g raw material. The most optimum condition for steam explosion pretreatment was as follows. Sunflower stalks were cut into small pieces and soaked in 0.02 M H2SO4 for overnight. After that, they were steam exploded at 207 C and 21 kg/cm2 for 3 minutes to fractionate cellulose, hemicellulose and lignin. The resulting hydrolysate, containing hemicellulose, and cellulose pulp contained xylose sugar at 2.53% and 7.00%, respectively.The pulp was further subjected to enzymatic saccharification at 50C pH 4.8 citrate buffer) with pulp/buffer 6% (w/w)and Celluclast 1.5L/pulp 2.67%(w/w) to obtain single glucose with maximum yield 11.97%. After fixed-bed fermentation under optimum condition using conventional yeast mixtures to produce bioethanol, it indicated maximum ethanol yield of 0.028 g/100 g sunflower stalk. © 2009 WASET.ORG.
URI: https://ir.swu.ac.th/jspui/handle/123456789/15454
https://www.scopus.com/inward/record.uri?eid=2-s2.0-78649581413&partnerID=40&md5=3ed0456ad8ee804d1be3d38698636ccf
ISSN: 2010376X
Appears in Collections:Scopus 1983-2021

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