Frias, H.; Murga, L.; Portocarrero-Villegas, S.M.; Arista-Ruiz, M.A.; Santillán Pinedo, L.; Diaz Escobedo, H.; Maraví, C.; Milla Pino, M.E.; Culqui Vilca, J.; Alvarado Chuqui, W.; Segura Portocarrero, G.T.; Saucedo-Uriarte, J.A.; Bardales, W. Physicochemical and Sanitary Parameters of Raw Cow's Milk Intended for Consumption in the Amazonas Region, Peru. Preprints2023, 2023081107. https://doi.org/10.20944/preprints202308.1107.v1
APA Style
Frias, H., Murga, L., Portocarrero-Villegas, S.M., Arista-Ruiz, M.A., Santillán Pinedo, L., Diaz Escobedo, H., Maraví, C., Milla Pino, M.E., Culqui Vilca, J., Alvarado Chuqui, W., Segura Portocarrero, G.T., Saucedo-Uriarte, J.A., & Bardales, W. (2023). Physicochemical and Sanitary Parameters of Raw Cow's Milk Intended for Consumption in the Amazonas Region, Peru. Preprints. https://doi.org/10.20944/preprints202308.1107.v1
Chicago/Turabian Style
Frias, H., José Américo Saucedo-Uriarte and William Bardales. 2023 "Physicochemical and Sanitary Parameters of Raw Cow's Milk Intended for Consumption in the Amazonas Region, Peru" Preprints. https://doi.org/10.20944/preprints202308.1107.v1
Abstract
The objective of this research was to evaluate the physicochemical and sanitary parameters of raw cow's milk intended for consumption in the Amazonas region, Peru. We sampled 31 collection centers and dairy processors. We evaluated physicochemical parameters (fat, protein, solids not fat, lactose, ash, pH, and density), somatic cell count, and microbiology (mesophilic aerobic bacteria and total coliforms) of raw milk. We applied an analysis of variance (α=0.05) and the comparison of means between the collection centers and livestock basins (p<0.05). In addition, we performed a cluster analysis, principal components and correlation. Depending on the collection center, we found differences in all the physicochemical parameters, somatic cell count and milk microbiology. In the livestock basin analysis, we found differences for somatic cells, fat, protein, solids, pH, coliforms and bacteria. The Jumbilla basin presented less somatic cells, less fat was found in the Levanto basin and higher protein in the Yambrasbamba basin. Lactose, ash, density, total coliforms and mesophilic aerobic bacteria did not vary according to basin. The cluster analysis yielded four groups, Group 1 is higher in ash and density, Group 2 and 3 are higher in fat, Group 3 with higher protein, but higher in total coliforms and mesophilic aerobic bacteria. Group 4 registered the highest pH and the lowest protein concentration. There was a positive correlation of fat with protein and solids not fat, lactose with solids not fat, ash with density. Negative correlations of somatic cells with fat and, protein and solids not fat with pH.
Biology and Life Sciences, Animal Science, Veterinary Science and Zoology
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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