Study of the Anti-Staphylococcal Potential of Honeys Produced in Northern Poland

Katarzyna Grecka; Piotr Kuś; Randy Worobo; Piotr Szweda

doi:10.3390/molecules23020260

Study of the Anti-Staphylococcal Potential of Honeys Produced in Northern Poland

Abstrakt

The antimicrobial activity of 144 samples of honeys including 95 products from apiaries located in Northern Poland was evaluated. The antibacterial activity of those natural products, their thermal stability, and activity in the presence of catalase was investigated by microdilution assays in titration plates. The MTT assay was performed for the determination of anti-biofilm activity. Spectrophotometric assays were used for the determination of antioxidant potential, total phenolic content, and ability to generate hydrogen peroxide. Some of the investigated honeys exhibited surprisingly high antimicrobial, especially anti-staphylococcal, potential, with Minimal Inhibitory Concentration (MIC) values of only 1.56% (v/v). Much higher resistance was observed in the case of staphylococci growing as biofilms. Lower concentrations of the product, up to 12.5% (v/v) stimulated its growth and effective eradication of biofilm required concentration of at least 25% (v/v). Hydrogen peroxide has been identified as a crucial contributor to the antimicrobial activity of honeys supplied by Polish beekeepers. However, some of the results suggest that phytochemicals, especially polyphenols, play an important role depending on botanical source (both positive, e.g., in the case of buckwheat honeys as well as negative, e.g., in the case of some rapeseed honeys) in their antimicrobial potential.

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Autorzy (4)

Katarzyna Grecka
Piotr Kuś dr
- Wydział Farmaceutyczny z O. Analityki Medycznej Katedra i Zakład Farmakognozji
Randy Worobo
- Department of Food Science
Piotr Szweda dr hab. inż.

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Wersja publikacji: Accepted albo Published Version
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/molecules23020260
Licencja: otwiera się w nowej karcie

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MIC

Informacje szczegółowe

Kategoria:: Publikacja w czasopiśmie
Typ:: artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:: MOLECULES nr 23, wydanie 2, strony 1 - 23,
ISSN: 1420-3049
Język:: angielski
Rok wydania:: 2018
Opis bibliograficzny:: Grecka K., Kuś P., Worobo R., Szweda P.: Study of the Anti-Staphylococcal Potential of Honeys Produced in Northern Poland// MOLECULES. -Vol. 23, iss. 2 (2018), s.1-23
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/molecules23020260
Weryfikacja:: Politechnika Gdańska