Abstract

MARTINEZ M, MARÍA MARCELA  and  GOMEZ S, CARLOS ALBERTO. COMPOSITIONAL AND HYGIENIC QUALITY OF RAW MILK RECEIVED IN DAIRIES IN SUCRE, COLOMBIA. Rev.Bio.Agro [online]. 2013, vol.11, n.2, pp.93-100. ISSN 1692-3561.

The compositional and hygienic quality of raw milk received in dairies in Sucre was evaluated, Colombia. During the summer and winter of 2008, 179 samples were taken. The evaluation was done by determining density, acidity, and alcoholometry, percentage of fat, protein and total solids, mesophilic bacteria, coliforms, fecal coliforms, and Staphylococcus aureus counts and detection of Salmonella spp. The data were processed in SPSSS 15.0 with a confidence level of 95%.High acidity and alcoholometry were found being higher in summer. However, the mean values of fat, protein and total solids indicated a standard compositional quality with values above the parameters established by 616/2006 Decree.The hygienic quality was poor, showing high aerobic mesophilic, coliforms, fecal coliforms, and S. aureus counts. Likewise, it was found significant differences in microbial counts from the two sampling periods, being higher in summer. It was founded the presence of Salmonella spp. at 4,4% and 1,8% of the samples in summer and winter, respectively. There was a poor hygienic quality of raw milk related to improper handling conditions through the production chain. However, the compositional quality of raw milk was found to be standard due to the percentages of fat, protein and total solids.

Keywords : Microbiological Analysis; Physicochemical Analysis; Quality Control; Food Legislation.

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