Prevalence of some pathogenic bacteria of raw milk in Algeria

Soumeya Kaouche, Nesrine Bouguerra, Soumeya Mesbahi

Abstract


This study was conducted in order to assess the microbial load of raw milk produced in Algeria by some toxic bacteria. In total, 30 samples were collected for 6 weeks from the point of delivery of the state dairy of Boumerdes in 5 tanks of different collectors. The analysis results showed that 13% of milks were contaminated with Listeria. 7 samples were positive for Staphylococcus aureus, with an average count expressed in Log10 cfu/ml of 1,85 ± 0,68. Positive coagulase were 79% of S. aureus strains. The average value of E. coli bacteria was considerable: 5,64 ± 1,27. The sulphite-reducing Clostridia detected in 9 samples were achieved varying levels between 0 and 60 cfu/ml. All samples were free of Salmonella spp. Significant differences in the profiles of various studied microbial pathogens indicate a deterioration in the microbiological quality of raw milk. 


Keywords


Raw milk; Collection; Pathogens; Bacteria; Algeria

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References


Faye B, Loiseau G. 2000. Source de contamination dans les filières laitières et exemple de démarche qualité. Acte de l’atelier international. Montpellier, France.

Brisabois A, Lafarge V, Brouillaud A, De Buyser ML, Collete C, Garin-Bastuji B, Thorel MF. Les germes pathogènes dans le lait et les produits laitiers: situation en France et en Europe. Sci Tech Off Int Epi. 1997; 16(1): 452-471.

Debuyser ML, Dufour B, Marie M, Lafarage V. Implication of milk products in food borne diseases in France and different industrialized countries. Int J Food Microbiol. 2001; 67: 1-17. http://dx.doi.org/10.1016/S0168-1605(01)00443-3

Leonard FC, Markey BK. Meticillin-resistant Staphylococcus aureus in animals. Vet J. 2008; 175: 27-36. http://dx.doi.org/10.1016/j.tvjl.2006.11.008

Kouamé-Sina SM, Bassa A, Makita K, Grace D, Dje M, Bonfoh B. Analyse des risques microbiens du lait cru local à Abidjan (Cote d’Ivoire). RASPA. 2010; 8: 35-42.

Aggad H, Mahoitz F, Ahmed Ammar Y, Kihal M. Evaluation de la qualité hygiénique du lait dans l'ouest d'Algérie. Rev Med Vét. 2009; 160(2): 590-595.

Ghazi K, Guessab B, Niar A, Louacini KI. Hygienic quality of raw milk, in various bovine breeds of Tiaret area (Algeria). Asian J Animal Vet Adv. 2010. 5(8): 552-596. http://dx.doi.org/10.3923/ajava.2010.20592.596

Afif A, Faid M, Najimi M. Qualité microbiologique du lait cru produit dans la région de Tadia au Maroc. Rev Biol Biotech. 2009; 7(1): 2-7.

Chey FY, Abdyllah A, Ayob L. Bacteriological quality and safety of raw milk in Malaysia. Food Microbiol. 2004; 21: 535-554. http://dx.doi.org/10.1016/j.fm.2003.11.007

Bonfoh B, Fané A, Traoré NA, Coulibaly Z, Simbe CF, Alfaroukh OJ, et al. 2002. Qualité microbiologique du lait cru et des produits laitiers vendus en saison chaude dans le district de Bamako au Mali. Rev Inter Sci de la Vie et de la Terre No spécial. 9p.

Michel V, Hauway A, Chamba JF. La flore microbienne du lait cru de vache : Diversité et influence des conditions de production. Lait. 2001; 81: 575-592. http://dx.doi.org/10.1051/lait:2001151

Hamdi TM, Naïm M, Martin P, Jacquet C. Identification and molecular characterization of Listeria monocytogenes isolated in raw milk in the region of Algiers (Algeria). Rev Int J Food Microbiol. 2007; 116: 190-193. http://dx.doi.org/10.1016/j.ijfoodmicro.2006.12.038

Boubendir M, Hamidechi MA, Mostakim M, Elabed S, Ibn Souda Koraici S. Incidence de Listeria spp et autre bactéries psychotrophes dans le lait cru bovin dans le Nord Est Algérien. Rev Méd Vêt. 2011; 162(5): 256-269.


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