Enhancement of Biological Pretreatment on Rice Straw by an Ionic Liquid or Surfactant
บทความในวารสาร
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Chang, Ken-Lin; Liu, Chun-Hung; Phitsuwan, Paripok; Ratanakhanokchai, Khanok; Lin, Yung-Chang; Dong, Cheng-Di; Lin, Ming-Hsun; Yang, Gordon C. C.
ผู้เผยแพร่: MDPI
ปีที่เผยแพร่ (ค.ศ.): 2021
Volume number: 11
Issue number: 11
นอก: 20734344
eISSN: 2073-4344
ภาษา: English-Great Britain (EN-GB)
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บทคัดย่อ
Fungal delignification can be a feasible process to pretreat biomass for bioethanol production if its performance is improved in terms of efficiency through a few modifications. The aim of this study was to enhance the biodelignification pretreatment of rice straw using laccase in the presence of ionic liquid (1-Allyl-3-methylimidazolium chloride, [AMIM]Cl) or surfactant (TritonX-100). Addition of 750 mg/L [AMIM]Cl and 500 mg/L TritonX-100 increases the lignin removal to 18.49% and 31.79%, which is higher than that of laccase only (11.97%). The enzymatic saccharification process was carried out based on different strategies. The highest cellulose conversion, 40.96%, 38.24%, and 37.91%, was obtained after 72 h of enzymatic saccharification when the substrate was washed with distilled water after pretreatment of rice straw with laccase + TritonX-100, laccase + [AMIM]Cl, and laccase only, respectively. In addition, the morphology and structure changes of pretreated and untreated rice straw were studied. Both surface area and cellulose crystallinity are substantially altered after laccase + [AMIM]Cl and laccase + TritonX-100 pretreatment. Enhanced saccharification efficiency of rice straw was achieved by laccase pretreatment with ionic liquid or surfactant in a single system.
คำสำคัญ
Delignification, Ionic liquid, Laccase
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