Soumahoro Souleymane^1,, Kouame Maimouna Liliane¹, Guédé Seri Serge¹, Touré Abdoulaye², Soro Yadé Réné³

The aim of this study is to make assessment of the hygienic and sanitary qualities of the raw and pasteurized milk sold by dairy of korhogo. To do this, 250 ml of raw and pasteurized milk were aseptically sampled from this dairy. The analyzes were targeted on hygiene quality indicator germs (Total Mesophilic Aerobic Flora, total coliforms, fecal coliforms, yeasts and molds) and pathogenic germs (Staphylococcus aureus and Samonella). Raw milk was loaded with mesophilic aerobic flora (3.16×10⁵ CFU/ml), total coliforms (1.20×10⁴ CFU/ml), faecal coliforms (8.10³ CFU/ml), Staphylococcus aureus (1.56×10⁴ CFU/ml) and yeasts and moulds (2.27×10⁴ CFU/ml). Its hygienic and sanitary qualities were unsatisfactory. No salmonella colonies have been counted there. Pasteurized milk was also loaded with mesophilic aerobic flora (1.05×10⁵ CFU/ml), total coliforms (5.88×10³ CFU/ml) and fecal coliforms (8.73×10² CFU/ml). On the other hand, no colonies of Staphylococcus aureus, salmonella, yeasts or moulds were found in pasteurized milk. Its hygienic quality was unsatisfactory, but its sanitary quality was satisfactory. These results suggest that raw milk represents a health risk for consumers. In addition, it appears necessary to limit hygienic-fecal contamination of raw milk in order to obtain pasteurized milk of good hygienic quality.

korhogo, raw milk, pasteurized milk, hygienic quality, sanitary quality