Sodium hydroxide pretreatment and enzymatic hydrolysis of coastal Bermuda grass

Ziyu Wang, Deepak R. Keshwani, Arthur P. Redding, Jay J. Cheng

Research output: Contribution to journalArticlepeer-review

187 Scopus citations

Abstract

Coastal Bermuda grass was pretreated with NaOH at concentrations from 0.5% to 3% (w/v) for a residence time from 15 to 90 min at 121 °C. The pretreatments were evaluated based on total lignin removal and production of total reducing sugars, glucose and xylose from enzymatic hydrolysis of the pretreated biomass. Up to 86% lignin removal was observed. The optimal NaOH pretreatment conditions at 121 °C for total reducing sugars production as well as glucose and xylose yields are 15 min and 0.75% NaOH. Under these optimal pretreatment conditions, total reducing sugars yield was about 71% of the theoretical maximum, and the overall conversion efficiencies for glucan and xylan were 90.43% and 65.11%, respectively.

Original languageEnglish (US)
Pages (from-to)3583-3585
Number of pages3
JournalBioresource Technology
Volume101
Issue number10
DOIs
StatePublished - May 2010

Keywords

  • Coastal Bermuda grass
  • Glucose
  • NaOH pretreatment
  • Reducing sugar
  • Xylose

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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