Effects of anti-foaming agents on biohydrogen production

Periyasamy Sivagurunathan, Parthiban Anburajan, Gopalakrishnan Kumar, Péter Bakonyi, Nándor Nemestóthy, Katalin Bélafi-Bakó, Sang Hyoun Kim

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8 Citations (Scopus)


The effects of antifoaming agents on fermentative hydrogen production using galactose in batch and continuous operations were investigated. Batch hydrogen production assays with LS-303 (dimethylpolysiloxane), LG-109 (polyalkylene), LG-126 (polyoxyethylenealkylene), and LG-299 (polyether) showed that the doses and types of antifoaming agents played a significant role in hydrogen production. During batch tests, LS-303 at 100 μL/L resulted in the maximum hydrogen production rate (HPR) and hydrogen yield (HY) of 2.5 L/L-d and 1.08 mol H 2 /mol galactose added , respectively. The following continuously stirred tank reactor operated at 12 h HRT with LS-303 at 100 μL/L showed a stable HPR and HY of 4.9 L/L-d and 1.17 mol H 2 /mol galactose added , respectively, which were higher than those found for the control reactor. Microbial community analysis supported the alterations in H 2 generation under different operating conditions and the stimulatory impact of certain antifoaming chemicals on H 2 production was demonstrated.

Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalBioresource Technology
Publication statusPublished - 2016 Dec 29


All Science Journal Classification (ASJC) codes

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

Cite this

Sivagurunathan, P., Anburajan, P., Kumar, G., Bakonyi, P., Nemestóthy, N., Bélafi-Bakó, K., & Kim, S. H. (2016). Effects of anti-foaming agents on biohydrogen production. Bioresource Technology, 213, 121-128. https://doi.org/10.1016/j.biortech.2016.02.121