Abstract

TARAZONA MANRIQUE, Luis Edgar et al. Presence of mycotic microorganisms in raw milk from cooling tanks in the Boyacense highlands (Colombia). Ces. Med. Vet. Zootec. [online]. 2019, vol.14, n.2, pp.8-17. ISSN 1900-9607.  https://doi.org/10.21615/cesmvz.14.2.1.

Yeasts and molds are germs that should not be found in milk samples because they are potentially pathogenic for both animals and humans. Due to its high handling during collection, storage, and transport, milk is susceptible to contamination with these microorganisms, so its detection in this food in these phases is relevant in order to prevent possible situations that compromise public health. The objective of the present work was to determine the presence of molds and yeasts in samples of milk cooling tanks in the Boyacense highlands. Samples were taken from 20 raw milk cooling tanks located in 20 different dairy municipalities of the department of Boyacá in order to determine the presence of molds and yeasts through Compact Dry YM®. 35% of the samples of milk did not present growth of molds or yeasts, meanwhile, in 25% yellow colony growth and its tonalities were found, which would correspond with mold colonies, in 5% determined the growth only of blue colonies, corresponding to yeast growth. In the remaining 35% growth of blue and yellow colonies was detailed. This shows that there is a high percentage of molds and yeasts in samples of refrigerated raw milk, a situation that could trigger a public health problem.

Keywords : Compact Dry YM®; microbiology; mycotic agents; raw milk.

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