Publication: The Effect of the Addition of Acetic Acid to Aqueous Ionic Liquid Mixture Using Microwave-assisted Pretreatment in the Saccharification of Napier Grass
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Issued Date
2018
Resource Type
File Type
application/pdf
ISSN
18772641
Other identifier(s)
2-s2.0-85017422433
Rights Holder(s)
Scopus
Bibliographic Citation
Waste and Biomass Valorization. Vol 9, No.10 (2018), p.1795-1804
Suggested Citation
Boonsombuti A., Wanapirom R., Luengnaruemitchai A., Wongkasemjit S. The Effect of the Addition of Acetic Acid to Aqueous Ionic Liquid Mixture Using Microwave-assisted Pretreatment in the Saccharification of Napier Grass. Waste and Biomass Valorization. Vol 9, No.10 (2018), p.1795-1804. doi:10.1007/s12649-017-9908-y Retrieved from: https://hdl.handle.net/20.500.14740/5839
Abstract
Napier grass, Pennisetum purpureum cv. Pakchong 1, was pretreated in an ionic liquid mixture through microwave irradiation. To improve the fermentable sugar yield, an acid catalyzed aqueous ionic liquid pretreatment was applied to maximize the total sugar conversion of pretreated Napier grass. Additionally, to optimize the fermentable sugar yield, experiments were carried out employing response surface methodology (RSM). The study showed that a maximum fermentable sugar concentration of 15.72 g/L could be predicted from the model when Napier grass was pretreated by 1-ethyl-3-methylimidazolium acetate ([EMIM] [OAc]) 50% (v/v) aqueous mixture combined with 1.287% (v/v) acetic acid at a microwave pretreatment temperature and time of 147 °C and 76 min, respectively. The experiments confirmed that the maximum sugar concentration obtained from acidic aqueous ionic liquid pretreatment were 14.38 g/L under the optimal conditions. The results from the Fourier transmission infrared spectroscopic showed that an acid catalyzed aqueous ionic liquid pretreatment removed large fractions of lignin. © 2017, Springer Science+Business Media Dordrecht.
Subject(s)
Acetic acid
Catalysis
Ionic liquids
Microwave irradiation
Mixtures
PH
Saccharification
1-ethyl-3-methylimidazolium acetates
Infrared spectroscopic
Ionic liquid mixtures
Lignocellulosic biomass
Microwave pretreatment
Napier grass
Pre-Treatment
Response surface methodology
Liquid sugar
Acetic Acid
Catalysts
Liquids
Mixtures
Ph
Pretreatment
Saccharification
Sugar
Catalysis
Ionic liquids
Microwave irradiation
Mixtures
PH
Saccharification
1-ethyl-3-methylimidazolium acetates
Infrared spectroscopic
Ionic liquid mixtures
Lignocellulosic biomass
Microwave pretreatment
Napier grass
Pre-Treatment
Response surface methodology
Liquid sugar
Acetic Acid
Catalysts
Liquids
Mixtures
Ph
Pretreatment
Saccharification
Sugar