Skip to main content
Erschienen in: Cellulose 16/2021

05.09.2021 | Original Research

Pretreatment of corn stover by acidic and basic choline chloride solutions for enzymatic hydrolysis

verfasst von: Benkun Qi, Zhenwu Wang, Jianquan Luo, Yinhua Wan

Erschienen in: Cellulose | Ausgabe 16/2021

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

As a cheap, biodegradable, and nontoxic chemical, choline chloride (ChCl) is widely used in animal feed. In this study, acid and alkali catalyzed ChCl pretreatments of corn stover (CS) were investigated. Compared with single aqueous ChCl pretreatment, H2SO4 acidified aqueous ChCl pretreatment was more effective in removing lignin (69.5%) and xylan (84.9%). NaOH alkalified aqueous ChCl pretreatment demonstrated better performance of delignification (76.8%) but weaker capability of removing xylan (46.2%) than acidified aqueous ChCl pretreatment. Following enzymatic digestibility of pretreated CS, glucose yield from acidified ChCl pretreatment was 72.1%, significantly lower than that of alkalified ChCl pretreatment (89.4%). However, the highest glucose yield of 98.6% resulted from solitary alkali pretreatment. Correlation studies between change in physico-chemical properties of pretreated solids and corresponding enzymatic digestibility indicated high delignification and bigger cellulose crystallite size were mainly responsible for high enzymatic hydrolysis efficiency. Additionally, the properties of extracted lignin from single and combined pretreatments with ChCl and alkali or acid were analyzed. Acidified ChCl pretreatment increased, whereas alkaline ChCl pretreatment decreased molecular weight and phenolic hydroxyl groups of separated lignin in comparison to individual acid and alkali pretreatment. These findings would provide useful information in understanding biomass pretreatments with aqueous ChCl.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Literatur
Zurück zum Zitat da Costa Lopes AM, Gomes JRB, Coutinho JAP, Silvestre AJD (2020) Novel insights into biomass delignification with acidic deep eutectic solvents: a mechanistic study of β-O-4 ether bond cleavage and the role of the halide counterion in the catalytic performance. Green Chem 22(8):2474–2487. https://doi.org/10.1039/C9GC02569CCrossRef da Costa Lopes AM, Gomes JRB, Coutinho JAP, Silvestre AJD (2020) Novel insights into biomass delignification with acidic deep eutectic solvents: a mechanistic study of β-O-4 ether bond cleavage and the role of the halide counterion in the catalytic performance. Green Chem 22(8):2474–2487. https://​doi.​org/​10.​1039/​C9GC02569CCrossRef
Zurück zum Zitat Li Z, Cai Z, Zeng Q, Zhang T, France LJ, Song C, Zhang Y, He H, Jiang L, Long J, Li X (2018) Selective catalytic tailoring of the H unit in herbaceous lignin for methyl p-hydroxycinnamate production over metal-based ionic liquids. Green Chem 20(16):3743–3752. https://doi.org/10.1039/C8GC01252KCrossRef Li Z, Cai Z, Zeng Q, Zhang T, France LJ, Song C, Zhang Y, He H, Jiang L, Long J, Li X (2018) Selective catalytic tailoring of the H unit in herbaceous lignin for methyl p-hydroxycinnamate production over metal-based ionic liquids. Green Chem 20(16):3743–3752. https://​doi.​org/​10.​1039/​C8GC01252KCrossRef
Zurück zum Zitat Sluiter A, Hames B, Scarlata C, Sluiter J, Templeton D, Crocker D (2008) Determination of structural carbohydrates and lignin in biomass—NREL/TP-510–42618. Laboratory Analytical Procedure (LAP) Sluiter A, Hames B, Scarlata C, Sluiter J, Templeton D, Crocker D (2008) Determination of structural carbohydrates and lignin in biomass—NREL/TP-510–42618. Laboratory Analytical Procedure (LAP)
Zurück zum Zitat Zakis GF (1994) Functional analysis of lignins and their derivatives. Tappi Press, Atlanta, GA, USA Zakis GF (1994) Functional analysis of lignins and their derivatives. Tappi Press, Atlanta, GA, USA
Metadaten
Titel
Pretreatment of corn stover by acidic and basic choline chloride solutions for enzymatic hydrolysis
verfasst von
Benkun Qi
Zhenwu Wang
Jianquan Luo
Yinhua Wan
Publikationsdatum
05.09.2021
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 16/2021
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04163-4

Weitere Artikel der Ausgabe 16/2021

Cellulose 16/2021 Zur Ausgabe