An experimental study on hydrothermal treatment of sweet sorghum bagasse for the extraction of hemicellulose

Jiby Kudakasseril Kurian, Gopu Raveendran Nair, Yvan Gariepy, Mark Lefsrud, Valerie Orsat, Philippe Seguin, Varoujan Yaylayan, G. S.Vijaya Raghavan

Research output: Contribution to journalArticlepeer-review

Abstract

Hydrothermal treatment can be used for the on-farm processing of lignocellulosic materials. This study investigated the hydrothermal treatment of sweet sorghum bagasse (SSB) powder for the extraction of hemicellulose from it. Changes in chemical composition of SSB and the formation of sugars and hydrolytic products were studied. The optimum conditions of 12.54 % (g/g) substrate concentration and 90 min of isothermal treatment residence time at 394 K were conducive to the extraction of 72.61–72.77 % hemicellulose and producing a hydrolysate containing 56.06–63.54 g/L reducing sugars and 5.52–6.80 g/L furfurals. The treated SSB residue contained about 56.30–56.42 % (g/g) cellulose and 31.40–31.43 % (g/g) lignin in it. The substrate concentration and isothermal treatment residence time were significant in the responses observed.

Original languageEnglish (US)
Pages (from-to)161-171
Number of pages11
JournalBiomass Conversion and Biorefinery
Volume5
Issue number2
DOIs
StatePublished - Jun 1 2015
Externally publishedYes

Keywords

  • Hemicellulose extraction
  • Hydrothermal treatment
  • On-farm processing
  • Sweet sorghum bagasse

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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