Publication:
Bioethanol production from enzymatically saccharified sunflower stalks using steam explosion as pretreatment

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Issued Date

2009

Resource Type

Article

File Type

application/pdf

ISSN

2010376X

Other identifier(s)

2-s2.0-78649581413

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

World Academy of Science, Engineering and Technology. Vol 37, (2009), p.140-143

Suggested Citation

Vaithanomsat P., Chuichulcherm S., Apiwatanapiwat W. Bioethanol production from enzymatically saccharified sunflower stalks using steam explosion as pretreatment. World Academy of Science, Engineering and Technology. Vol 37, (2009), p.140-143. Retrieved from: https://hdl.handle.net/20.500.14740/7708

Title

Bioethanol production from enzymatically saccharified sunflower stalks using steam explosion as pretreatment

Author(s)

Vaithanomsat P.
 Chuichulcherm S.
 Apiwatanapiwat W.

Abstract

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.

Subject(s)

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

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URI

https://hdl.handle.net/20.500.14740/7708

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Scopus: Year 1983-2021

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