Effect of volatile organic compounds from Pinus sylvestris and Picea abies on Staphylococcus aureus, Escherichia coli, Streptococcus pneumoniae and Salmonella enterica serovar Typhimurium

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • National Institute for Health and Welfare
  • Thünen Institute of Wood Research

Abstract

Pine and spruce heartwood and sapwood were milled to wood particles and the volatile organic compounds (VOCs) of the wood particles were tested against four bacterial strains. To study the influence of relative humidity on the antibacterial effect, both dry and wet wood particles were tested. Twenty microliters of the bacterial dilution with a concentration of 1.5×107 CFU ml-1 was cultured on glass surfaces in the presence of VOCs and the amount of viable bacteria was studied after 2, 4, and 24 h. The volatile emissions were evaluated by GC/MS and the results were compared with the results from the bacterial trial. VOCs had an antibacterial effect on Escherichia coli, Streptococcus pneumoniae and slightly on Salmonella enterica serovar Typhimurium. But the effect on Staphylococcus aureus was minute even after 3 days' incubation. The dry wood particles generally had a stronger antibacterial effect, though the amount of VOCs from the wet wood was higher. Pine heartwood had the strongest antibacterial effect and also the highest emissions of VOCs. However, the interaction between different bacterial strains and wood species shows some variations.

Details

Original languageEnglish
Pages (from-to)905-912
Number of pages8
JournalHolzforschung
Volume71
Issue number11
Publication statusPublished - 26 Oct 2017
MoE publication typeA1 Journal article-refereed

    Research areas

  • antibacterial emissions, E. coli, Picea abies, Pinus sylvestris, S. aureus, S. pneumoniae, S. Typhimurium, wood VOC

ID: 17195265