The effect of the tetracyclines over the antioxidant properties of Chilean native honeys

Chilean honeys are produced from several native vegetables species with interesting biological properties such as antioxidant and antiradical activities. Those attributes are related with the phenolic compounds of honeys.

In many cases, it is possible too to find certain kind of undesirable chemical compounds owing to the treatments for improving the production of honeys and other bee products. This fact may affect the original properties of a given honey.

Samples of Chilean unifloral honey were obtained from different zones of Chile. The screening of the content of veterinary drugs and the phenolic profiles of honeys were obtained by UPLC- MS/MS. The Folin-Ciocalteu reagent was used for total phenolic compounds determination. The analysis of the antioxidant and antiradical activities were made by colorimetric methods (FRAP and DPPH).

Also, a group of honeys with no antibiotic content were fortified with increasing amounts of one of the following tetracyclines: Tetracycline, Oxytetracycline, Doxycycline or Chlortetracycline in order to obtain an assessment of the changes in the phenolic profiles and the antioxidant power.

In this work, the results of the detection of the residual presence of veterinary drugs are showed and the correlation with the modification of the early antioxidant properties of the analyzed honeys is discussed.

Funded by INICIO VRI-PUC 16/2013 Grant to Dr. Enrique MEJIAS