2026-04-19T06:26:36Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/90892024-05-01T00:05:18Zcom_10259_9090com_10259_5086com_10259_2604com_10259_4249com_10259_5363col_10259_9091col_10259_4250col_10259_5364

00925njm 22002777a 4500 dc Osés Gómez, Sandra María author Rodríguez, Carlos author Valencia García, Olga author Fernández Muiño, Miguel Ángel author Sancho Ortiz, María Teresa author 2024-04 Honey is a natural sweetener made by bees that exhibits antimicrobial activity, mainly related to its H2O2 content. The aim of this work was to research the H2O2 concentration of 24 Spanish honeys from different botanical origins, studying their possible correlation with glucose oxidase (GOx), catalase (CAT), and anti-Staphylococcus aureus activities (minimal inhibition concentration (MIC), minimal bactericidal concentration (MBC), and percentage of inhibition at 5% (w/v) honey against Staphylococcus aureus), as well as possible correlations among all the analyzed parameters. The results showed that the H2O2 concentration did not depend on the botanical origin of the honeys. There were neither correlations between the H2O2 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 Staphylococcus aureus. Furthermore, a linear regression model has been fitted to explain the antimicrobial activity from CAT and GOx activity and H2O2 concentration. Although H2O2 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-Staphylococcus aureus activity exhibited by all samples could be interesting for commercial honey-based formulations also helping to promote local beekeeping. 2304-8158 http://hdl.handle.net/10259/9089 10.3390/foods13091344 2304-8158 Honey Hydrogen peroxide Glucose oxidase Catalase Antimicrobial activity Relationships among Hydrogen Peroxide Concentration, Catalase, Glucose Oxidase, and Antimicrobial Activities of Honeys