Mesophilic continuous fermentative hydrogen production from acid pretreated de-oiled jatropha waste hydrolysate using immobilized microorganisms

Gopalakrishnan Kumar, Periyasamy Sivagurunathan, Biswarup Sen, Sang Hyoun Kim, Chiu Yue Lin

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Mesophilic hydrogen production from acid pretreated hydrolysate (biomass concentration of 100 g/L and 2% hydrochloric acid) of de-oiled jatropha waste was carried out in continuous system using immobilized microorganisms at various hydraulic retention times (HRTs) ranging from 48 to 12 h. The experimental results of the reusability of immobilized microorganisms showed their stability up to 10 cycles with an average cumulative hydrogen production of 770 mL/L. The peak hydrogen production rate and hydrogen yield were 0.9 L/L*d and 86 mL/greducing sugars added, respectively at 16 h HRT, with butyrate as the predominant volatile fatty acid. The microbial community analysis revealed that majority of the PCR-DGGE bands were assigned to genus Clostridium and were perhaps the key drivers of the higher hydrogen production.

Original languageEnglish
Pages (from-to)137-143
Number of pages7
JournalBioresource technology
Volume240
DOIs
Publication statusPublished - 2017 Jan 1

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Mesophilic continuous fermentative hydrogen production from acid pretreated de-oiled jatropha waste hydrolysate using immobilized microorganisms'. Together they form a unique fingerprint.

  • Cite this