Photoheterotrophic growth of Chlorella vulgaris ESP6 on organic acids from dark hydrogen fermentation effluents

Chien Hung Liu, Chin Yen Chang, Qiang Liao, Xun Zhu, Jo Shu Chang

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

In this work, Chlorella vulgaris ESP6 was used to assimilate the soluble metabolites in the hydrogen fermentation broth of Clostridium butyricum CGS5 to obtain valuable microalgae biomass. The results show that C. vulgaris ESP6 could grow on the 4-fold diluted dark fermentation broth. Acetate was efficiently utilized during the growth of C. vulgaris ESP6, whereas the microalgae growth was inhibited by lactate, butyrate, and HCO3- when their concentrations were higher than 0.5, 0.1, and 2.72. g/L, respectively. C. vulgaris ESP6 could completely consume butyrate (the most abundant dark fermentation metabolite) when it was grown on Tris-Acetate-Phosphate medium under a food to microorganism (F/M) ratio of 1.11.

Original languageEnglish
Pages (from-to)331-336
Number of pages6
JournalBioresource technology
Volume145
DOIs
Publication statusPublished - 2013 Oct

All Science Journal Classification (ASJC) codes

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

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