Evaluation of physicochemical composition and labeling information of commercial pasteurized milk and their Mexican official regulatory compliance

Abstract

Currently, there is a wide variety of pasteurized milk brands sold in supermarkets and grocery stores. The objective of this study was to evaluate the physicochemical composition and nutritional information of commercial pasteurized milk commercial and their compliance with the official Mexican standards. In general, all milk brands comply with the commercial information required by the regulations. Likewise, the different pasteurized milk brands showed statistical differences between production batches of the same brand (p < 0.05) and milk brands (p < 0.05) in terms of physicochemical composition. On the other hand, any milk brands did not comply with the protein, fat, and lactose content reported in its labeling (p < 0.05) and the NOM-151-SCFI-2012 stipulations. Additionally, the cluster analysis permits the aggrupation of milk brand quality in four groups. The first group is formed by the A sample, group 2 by the B sample, while, in the third group, the B and C samples, and the fourth group is characterized by the E, F, G, and H samples. In this context, greater vigilance by the corresponding authorities is required to ensure compliance with the parameters established by the official regulations and allow consumers to obtain good quality dairy products.