Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/11925
ชื่อเรื่อง: Comparative Study of Three Chemical Pretreatments and Their Effects on the Structural Changes of Rice Straw and Butanol Production
ผู้แต่ง: Boonsombuti A.
Trisinsub O.
Luengnaruemitchai A.
Keywords: Acetone
Alkalinity
Butenes
Clostridium
Detoxification
Fermentation
Ionic liquids
Microwave irradiation
Saccharification
Sodium hydroxide
Abe fermentations
Chemical pre-treatment
Chemical pretreatments
Clostridium beijerinckii
Enzymatic saccharification
Ionic liquid pretreatment
Response surface methodology
Rice straws
Liquid sugar
วันที่เผยแพร่: 2020
บทคัดย่อ: In this study, the optimal conditions for the ionic liquid pretreatment of rice straw by microwave irradiation was identified by Response Surface Methodology (RSM). The maximum level of sugar concentration of 19.59 g/L was derived when rice straw was pretreated at 162 °C for 48 min and further hydrolyzed by enzymatic saccharification. The comparison of chemical pretreatment was performed using ionic liquid, alkaline, and acid to evaluate the effectiveness and effect structural changes of rice straw. Nevertheless, the total sugar yield from this ionic liquid pretreatment was 13% lower than alkaline (NaOH) pretreatment. All hydrolysates from chemical pretreatment were subjected for use as a culture medium for Clostridium beijerinckii TISTR 1461 in acetone–butanol–ethanol (ABE) fermentation. The results suggested that residue ionic liquid affects microbial growth, so a detoxification step was cautiously considered. Additionally, using hydrolysate of the rice straw pretreated by NaOH as a substrate, isobutyraldehyde was found in the fermentation broth, suggesting that C. beijerinckii TISTR 1461 can produce isobutanol in proper conditions. © 2019, Springer Nature B.V.
URI: https://ir.swu.ac.th/jspui/handle/123456789/11925
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062148208&doi=10.1007%2fs12649-019-00622-z&partnerID=40&md5=9cbe281a3eaebb05fac35de40a82a2aa
ISSN: 18772641
Appears in Collections:Scopus 1983-2021

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