Evaluation of lignocellulosic material for butanol production using enzymatic hydrolysate medium

  • Butanol is a promising gasoline additive and platform chemical that can be readily produced via acetone-butanolethanol (ABE) fermentation from pretreated lignocellulosic materials. This article examines lignocellulosic material from beech wood for ABE fermentation, using Clostridium acetobutylicum. First, the utilization of both C₅₋ (xylose) and C₆₋ (glucose) sugars as sole carbon source was investigated in static cultivation, using serum bottles and synthetic medium. The utilization of pentose sugar resulted in a solvent yield of 0.231 g·g_sugar⁻¹, compared to 0.262 g·g_sugar⁻¹ using hexose. Then, the Organosolv pretreated crude cellulose fibers (CF) were enzymatically decomposed, and the resulting hydrolysate medium was analyzed for inhibiting compounds (furans, organic acids, phenolics) and treated with ionexchangers for detoxification. Batch fermentation in a bioreactor using CF hydrolysate medium resulted in a total solvent yield of 0.20 gABE·g_sugar⁻¹.

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Metadaten
Author:Jasmine Roth, Nils TippkötterORCiD
Parent Title (English):Cellulose Chemistry and Technology
Publisher:Editura Academiei Romane
Place of publication:Bukarest
Document Type:Article
Language:English
Year of Completion:2016
Volume:50
Issue:3-4
First Page:405
Last Page:410
Link:https://www.cellulosechemtechnol.ro/pdf/CCT3-4(2016)/p.405-410.pdf
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Chemie und Biotechnologie
collections:Verlag / Editura Academiei Romane