Resumen

TALERO, C; HERNANDEZ, D  y  FIGUEROA, J. RAW PROPOLIS MICROBIOLOGIC QUALITY AND SOLUBLE SOLIDS OF Apis mellifera PROPOLIS EXTRACTS IN COLOMBIA. Rev. Med. Vet. Zoot. [online]. 2012, vol.59, n.2, pp.109-118. ISSN 0120-2952.

Raw propolis samples from three different geographical origins were submitted to the microbiological  quality  tests  and  to  the  extraction  of  the  dry  matter  using  two ethanol extracts (70 and 96%). The aerobic mesophile, total coliforms, fecal coliforms, Staphylococcus sp., molds and yeasts indicator groups were quantified, finding in average 93x103; 79x102; <1; 94; 10x104 CFU/g respectively. The pathogen detection was made for Escherichia coli obtaining 51 samples free of the pathogen and 2 samples with presence of it, and for Staphylococcus aureus, which were present in 4 and 2% of the samples respectively. The microbiologic results were compared with the quality standards of Japan, Peru, and El Salvador, finding that the indicator groups molds and yeasts was the most critical, where 92 to 94% of the evaluated samples were off limits of the international standards. These results show that the ethanol extracts made at concentrations of 70 and 96% of Colombian propolis, obtained in average 93.0 and 175.3 mg/ml of dry extract respectively. The concentration of dry extract was compared with the standards of Brazil, Argentina and Japan. For the most strict standard, which is the Brazilian, there were found complying percentages of 53.4 and 56.1% for propolis ethanol extracts (PEE) of 70 and 96% respectively and for the Japan standard they were found acceptable 75.9 and 69.7% of the PEE 70% and 96% respectively. The results are linked to the flora, geographical origins and to the non specialized production methods. This study included raw propolis samples from countries such as Belgium, Chile, Cuba and New Zealand.

Palabras clave : propolis; parameters; classification; standards.

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