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- Title
Physicochemical and microbiological quality of refrigerated raw bovine milk commercialized in Presidente Médici, Rondônia state, Western Amazon, Brazil.
- Authors
Gotardi Rocha, Viviane; Goes Guedes, Gabriel; Dantas Filho, Jerônimo Vieira; Domingos de Oliveira, Antonia Valcemira; Gilio Gasparotto, Paulo Henrique; Cavali, Jucilene; Bianchini Pontuschka, Rute
- Abstract
The aimed of the study was to evaluate the quality of raw milk from some suppliers in rural and urban areas and to test the hypothesis that it is unsafe for direct consumption. The study was conducted with suppliers in rural and urban areas in Presidente Médici municipality, Rondônia state. The method of the Ministério da Agricultura, Pecuária e Abastecimento (MAPA), was used, which consists of titrating a portion of the sample with a sodium hydroxide solution of known concentration, using phenolphthalein as an indicator. According to Brazilian legislation and literature, stability of Alizarol, foreign substances, Chloride, Hypochlorite, Hydrogen Peroxide and Colostrum were analyzed. Microbiological analysis, standard plate count (SPC) and quantification of thermotolerant coliforms were also performed using the most probable number (MPN) technique. Values above the limits established by legislation were found, mainly for temperature and titleable acidity, in addition to stability results against Alizarol and the presence of colostrum. There were high microbial contents with regard to SPC, and, in this case, the presence of pathogenic microorganisms cannot be disregarded. The presence of thermotolerant coliforms may indicate probable contact of milk with feces. Therefore, it is considered that the samples analyzed here are not safe for ingestion in the raw form.
- Subjects
RONDONIA (Brazil : State); BRAZIL; RAW milk; CONSUMPTION (Economics); PATHOGENIC microorganisms; CITIES &; towns; MILK quality; FOOD fermentation
- Publication
Acta Veterinaria Brasilica, 2023, Vol 17, Issue 1, p53
- ISSN
1981-5484
- Publication type
Article
- DOI
10.21708/avb.2023.17.1.11343