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Oregano powder reduces Streptococcus and increases SCFA concentration in a mixed bacterial culture assay


Autoři: Benjamin W. Bauer aff001;  Sheeana Gangadoo aff001;  Yadav Sharma Bajagai aff001;  Thi Thu Hao Van aff002;  Robert J. Moore aff002;  Dragana Stanley aff001
Působiště autorů: Institute for Future Farming Systems, Central Queensland University, Rockhampton, Queensland, Australia aff001;  RMIT University, School of Science, Bundoora, Victoria, Australia aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0216853

Souhrn

Food borne illnesses have a world-wide economic impact and industries are continuously developing technologies to reduce the spread of disease caused by microorganisms. Antimicrobial growth promoters (AGPs) have been used to decrease microbiological infections in animals and their potential transfer to humans. In recent years there has been a global trend to remove AGPs from animal feed in an attempt to reduce the spread of antimicrobial resistant genes into the human population. Phytobiotics, such as oregano powder, are one of the potential replacements for AGPs due to their well-established antimicrobial components. 16S rRNA gene amplicons were used to determine the effect of oregano powder (1% w/v) on the microbiota of mixed bacterial cell cultures, which were obtained from the ceca of traditionally grown meat chickens (broilers). Oregano powder had a mild effect on the microbial cell cultures increasing Enterococcus faecium, rearranging ratios of members in the genus Lactobacillus and significantly reducing the genus Streptococcus (p = 1.6e-3). Beneficial short chain fatty acids (SCFA), acetic and butyric acid, were also significantly increased in oregano powder supplemented cultures. These results suggest that oregano powder at a concentration of 1% (w/v) may have beneficial influences on mixed microbial communities and SCFA production.

Klíčová slova:

Bacteria – Enterococcus – Filter sterilization – Gastrointestinal tract – Lactobacillus – Livestock – Microbiome – Streptococcus


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