Pretreatment of corn cobs using 1-butyl-3-methylimidazolium tetrafluoroborate and dimethyl sulfoxide to enhance enzymatic saccharification

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Kuntapa M., Sudaprasert K., Tachaapaikoon C.

ผู้เผยแพร่: Springer

ปีที่เผยแพร่ (ค.ศ.): 2021

วารสาร: Biomass Conversion and Biorefinery (2190-6815)

Volume number: 13

Issue number: 8

นอก: 2190-6815

eISSN: 2190-6823

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111878735&doi=10.1007%2fs13399-021-01702-8&partnerID=40&md5=e05041f338f37a491976390c6ed0d2ff

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

Ionic liquid (IL) pretreatment is a promising approach for pretreating biomass before converting it into sugars but associated with high costs. The combination of [BMIM]BF4: DMSO pretreatment shows the highest delignification, whereas cellulose and hemicellulose recoveries are similar in all pretreatments. The lignin of corn cob pretreated with [BMIM]BF4: DMSO has been removed to the amount of1.59- and 1.40-fold of the pretreatment with [EMIM]OAc: DMSO and [BMIM]OAc: DMSO, resulting in a highly porous structure of corn cobs. Furthermore, the delignification of corn cobs pretreated with [BMIM]BF4: DMSO can reduce the crystallinity of biomass, regarding a decrease of lateral order index (LOI) and the crystallinity index (CI) of 1.08- and 1.07-fold and 1.04- and 1.03-fold of crystalline cellulose from the pretreatment with [EMIM]OAc: DMSO and [BMIM]OAc: DMSO, respectively. Additionally, the preceding delignification of [BMIM]BF4: DMSO pretreatment followed by enzymatic hydrolysis can result in the highest cellulose conversion of 92.98 ± 0.02% when compared with cellulose conversion of [EMIM]OAc: DMSO at 82.84 ± 0.06% and [BMIM]OAc: DMSO at 85.97 ± 0.03%. The combination of using [BMIM]BF4 featuring DMSO to pretreat lignocellulose biomass is firstly reported in this work. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

คำสำคัญ

1-Butyl-3-methylimidazolium tetrafluoroborate, Corn cobs, Co-solvent, dimethyl sulfoxide, Ionic liquid pretreatment