National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Cow's milk is sought for its high concentration of animal protein and nutrients. Unfortunately, the conditions of milking, transport, packaging and marketing of milk in Daloa (Côte d'Ivoire) jeopardize its microbiological quality. Our study aimed to study the physicochemical and microbiological characteristics of raw milk (collected from pastures and sellers) and artisanal curd (nonnonkoumou). A total of 33 samples underwent physicochemical analysis. This analysis consisted of determination of pH, titratable acidity, and density. Microbiological analysis consisted of enumeration of lactic acid bacteria, yeasts and molds, Aerobic mesophiles, total and thermotolerant coliforms, and Salmonella research. A survey was also conducted to determine the knowledge, mode and frequency of milk consumption. This survey has shown that milk is known and consumed by many Ivorians and some nationals of neighboring countries of any age and any social level. The physicochemical analyzes revealed a low pH (between 3.7 ± 0.007 and 3.9 ± 0.02) in the nonnonkoumou compared to that of the milk (between 5.9 ± 0.02 and 6.7 ± 0.007). Titratable acidity ranged from 1.4 ± 0.007 to 1.34 ± 0.007 in nonnonkoumou and from 0.36 ± 0.01 to 0.08 ± 0.007 in milk. Densities of milk and nonnonkoumou ranged from 0.841 ± 0.007 to 1.072 ± 0.02. Microbiological analyzes of milk samples taken from pastures showed similar loads (between 4.81 ± 0.4 and 6.88 ± 0.73 log CFU/ml) in fermentative germs and contaminants. In addition, the milk collected from the sellers was free of yeasts and molds and the total and thermotolerant coliforms were not detected in the nonnonkoumou samples analyzed. Salmonella (pathogenic flora) was detected in some milk samples analyzed thus demonstrating that this milk is of poor microbiological quality. Its consumption can lead to a food poisoning.
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