Surfactant-enhanced anaerobic acidogenesis of Canna indica L. by rumen cultures

Zheng Bo Yue, Han Qing Yu, Zhen Hu Hu, Hideki Harada, Yu You Li

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Polyoxyethylene sorbitan monoolate (Tween 80) was used to enhance the anaerobic acidogenesis of Canna indica L. (canna) by rumen culture in this study. Dose of Tween 80 at 1 ml/l enhanced the volatile fatty acids (VFA) production from the acidogenesis of canna compared to the control. However, Tween 80 at higher dosages than 5 ml/l inhibited the rumen microbial activity and reduced the VFA yield. Response surface methodology was successfully used to optimize the VFA yield. A maximum of VFA yield of 0.147 g/g total solids (TS) added was obtained at canna and Tween 80 concentrations of 6.3 g TS/l and 2.0 ml/l, respectively. Dosage of Tween 80 at 1-3.75 ml/l reduced the unproductive adsorption of microbes or enzymes on the lignin part in canna and increased microbial activity. A high VFA production was achieved from canna presoaked with Tween 80, suggesting that the structure of canna was disrupted by Tween 80.

Original languageEnglish
Pages (from-to)3418-3423
Number of pages6
JournalBioresource Technology
Volume99
Issue number9
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • Acidogenesis
  • Canna
  • Rumen
  • Surfactant
  • Tween 80

ASJC Scopus subject areas

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

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