Long cold storage influences the microbiological quality of raw goat milk

Storage of goat milk production in cold temperatures is a current Brazilian legislation request, however there is no specification of a limit period for this. The present work aimed to characterize the microbiological characteristics of raw goat milk produced in a specific region of Brazil, as well...

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Bibliographic Details
Published in:Small ruminant research 2013-06, Vol.113 (1), p.205-210
Main Authors: Yamazi, Anderson Keizo, Moreira, Thalita Scatamburlo, Cavicchioli, Valéria Quintana, Burin, Raquel Cristina Konrad, Nero, Luís Augusto
Format: Article
Language:English
Subjects:
analysis of variance
cold
Cold storage
coliform bacteria
Escherichia coli
farms
freezers
Goat milk
goats
hygiene
laws and regulations
microbiological quality
milk production
milk tanks
proteolysis
Proteolytics
Psychrotrophics
storage time
temperature
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Summary:Storage of goat milk production in cold temperatures is a current Brazilian legislation request, however there is no specification of a limit period for this. The present work aimed to characterize the microbiological characteristics of raw goat milk produced in a specific region of Brazil, as well as the influence of the storage system and period on its quality. Sixty-one samples from 12 goat farms were collected and subjected to analysis to enumerate hygiene indicator microorganisms, psychrotrophics and proteolytic psychrotrophics. The obtained counts were described and compared considering the system and period of storage (ANOVA, Tukey). Despite presenting low counts of mesophiles, the samples presented high counts of other groups and a relevant presence of proteolytics. Samples collected from bulk tanks presented higher counts of mesophiles and psychrotrophics when compared to immersion tanks and freezers (p
ISSN:0921-4488
1879-0941
DOI:10.1016/j.smallrumres.2013.02.004