Optimization of Sodium Carbonate Pretreatment on Enzymatic Digestibility of Bioenergy Material: Miscanthus

Abstract:

Pretreatment is a critical step in the conversion of lignocellulose to fermentable sugars. In this work, Miscanthus straw was pretreated with ammonium carbonate (Na₂CO₃), which was shown by earlier works to be an effective pretreatment of grass stovers and other plant materials in the context of ethanol production. Here, we explored several key parameters including Na₂CO₃ concentration (2–6%), temperature (120–160°C), and reaction time (10–30 min) to evaluate their effects on enzymatic digestibility using response surface methodology. The best conditions were found to be Na₂CO₃ of 4.4%, temperature of 150.7°C, and reaction time of 20.0 min, under which glucose yield reached to 294.5 g/Kg biomass.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 240-243
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.240
• Online since: October 2014
• Authors: Ning Xu*, Ben Lin Dai, Zhen Wu, Fei Hu Mu, Ji Ming Xu
• Keywords: Ammonium Carbonate Pretreatment, Enzymatic Hydrolysis, Miscanthus

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