Intereference of storage temperatures in the development of mesophilic, psychrotrophic, lipolytic and proteolytic microbiota of raw milk

Autores/as

  • Luana Martins Perin Universidade Federal de Viçosa
  • Paula Mendonça Moraes Universidade Federal de Viçosa
  • Michelle Vieira Almeida Universidade Federal de Viçosa
  • Luís Augusto Nero Universidade Federal de Viçosa

DOI:

https://doi.org/10.5433/1679-0359.2012v33n1p333

Palabras clave:

Milk storage, Raw milk, Microbiological quality, psychrotrophic.

Resumen

With the objective of comparing distinct storage conditions of raw milk, 20 samples of raw milk were collected, and portions of each were stored at different storage conditions (4°C for 48 h, 7°C for 48 h and 25°C for 4 h). Populations of mesophilic aerobes, coliforms and psychrotrophics (total, lipolytic and proteolytic) were monitored, and the results were compared by analysis of variance (ANOVA, P < 0.05). Psychrotrophics were randomly selected and identified. Mesophilic aerobes and coliforms had significant development after 48 h at 7°C and 25°C. For psychrotrophics, the differences were evident in samples with high levels of initial contamination. Pseudomonas and Serratia were the main species of contamination. The storage conditions of raw milk allowed the development of spoilage psychrotrophics, which were more evident in samples with low microbiological quality.

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Biografía del autor/a

Luana Martins Perin, Universidade Federal de Viçosa

Discente do Programa de Pós-Graduação em Medicina Veterinária, Deptº de Veterinária, Universidade Federal de Viçosa, Viçosa, MG.

Paula Mendonça Moraes, Universidade Federal de Viçosa

Discente do Programa de Pós-Graduação em Medicina Veterinária, Deptº de Veterinária, Universidade Federal de Viçosa, Viçosa, MG.

Michelle Vieira Almeida, Universidade Federal de Viçosa

Discente do Programa de Pós-Graduação em Medicina Veterinária, Deptº de Veterinária, Universidade Federal de Viçosa, Viçosa, MG.

Luís Augusto Nero, Universidade Federal de Viçosa

Prof. do Deptº de Veterinária da UFV, Viçosa, MG.

Publicado

2012-04-05

Cómo citar

Perin, L. M., Moraes, P. M., Almeida, M. V., & Nero, L. A. (2012). Intereference of storage temperatures in the development of mesophilic, psychrotrophic, lipolytic and proteolytic microbiota of raw milk. Semina: Ciências Agrárias, 33(1), 333–342. https://doi.org/10.5433/1679-0359.2012v33n1p333

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