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Relationships Among Hydrogen Peroxide Concentration, Catalase, Glucose Oxidase, and Antimicrobial Activities of Honeys

Overview
Journal Foods
Specialty Biotechnology
Date 2024 May 11
PMID 38731715
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Abstract

Honey is a natural sweetener made by bees that exhibits antimicrobial activity, mainly related to its HO content. The aim of this work was to research the HO concentration of 24 Spanish honeys from different botanical origins, studying their possible correlation with glucose oxidase (GOx), catalase (CAT), and anti- activities (minimal inhibition concentration (MIC), minimal bactericidal concentration (MBC), and percentage of inhibition at 5% (/) honey against ), as well as possible correlations among all the analyzed parameters. The results showed that the HO concentration did not depend on the botanical origin of the honeys. There were neither correlations between the HO concentration and the activities of GOx and CAT, nor between GOx and antimicrobial activity. However, CAT and antimicrobial activities were positively correlated. Therefore, CAT could be successfully used as a possible marker of the antimicrobial activity of honeys against . Furthermore, a linear regression model has been fitted to explain the antimicrobial activity from CAT and GOx activity and HO concentration. Although HO is one of the compounds involved in honey's antibacterial activity, this capacity also strongly depends on other honey components (such as low water activity, acidity, osmolarity, and phenolic compounds). The very high anti- activity exhibited by all samples could be interesting for commercial honey-based formulations also helping to promote local beekeeping.

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