Changes in the microflora composition of goat and sheep milk during lactation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F15%3A43907992" target="_blank" >RIV/62156489:43210/15:43907992 - isvavai.cz</a>

Result on the web

<a href="http://www.potravinarstvo.com/journal1/index.php/potravinarstvo/article/view/489/pdf" target="_blank" >http://www.potravinarstvo.com/journal1/index.php/potravinarstvo/article/view/489/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5219/489" target="_blank" >10.5219/489</a>

Result language

angličtina

Original language name

Changes in the microflora composition of goat and sheep milk during lactation

Original language description

The aim of this work was to determine extend of microbial contamination of raw milk in individual seasons. Raw goat milk (3 farms) and sheep milk (2 farms) were analyzed. Samples were taken during lactation three terms in the beginning, middle and end of lactation. In milk, following groups of microorganisms were determined by standard methods: total count of microorganisms (TCM), psychrotrophic microorganisms, Enterobacteriaceae, lactic acid bacteria (lactobacilli), enterococci, aerobic and anaerobic thermoresistant microorganisms (TMRae, TMRan), micromycetes (yeast and moulds). In goat milk, the following numbers of microorganisms were detected: total count of microorganisms (TCM) from 105 to 109 CFU/mL, lactobacilli from 102 to 105 CFU/mL, bacteria fam. Enterobacteriaceae from 101 to 105 CFU/mL, enterococci from 101 to 105 CFU/mL, TMRae and TMRan from units to 103 resp. 105 CFU/mL, psychrotrophic microorganisms from 101 to 106 CFU/mL, micromycets from 101 to 104 CFU/mL. In the sheep milk, the following numbers of microorganisms were determined: TCM from 105 to 106 CFU/mL, lactobacilli from 103 to 106 CFU/mL, bacteria fam. Enterobacteriaceae from 101 to 105 CFU/mL, enterococci from 101 to 104 CFU/mL, TMRae and TMRan from units to 105 CFU/mL, psychrotrophic microorganisms from 104 to 106 CFU/mL, micromycets from 102 to 104 CFU /mL. From the above mentioned results, the following conclusions can be suggested. The bacterial counts of raw goat and sheep milk are highly variable and influenced by a number of important factors in the course of lactation and year (temperature, health, secondary contamination etc.). The bacterial numbers are not affected by the stage of lactation. High numbers of microorganisms in goat and sheep milk may be primarily caused by the insufficient cleaning and sanitizing of milking equipment or low hygiene of hand milking. An important role may also act the cooling rate of milk and purity of cooling eguipment.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EE - Microbiology, virology

OECD FORD branch

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Project

<a href="/en/project/QJ1230044" target="_blank" >QJ1230044: Determination of parameters for legislative assessing of the quality and safety of raw milk from cows, sheep and goats</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Potravinárstvo (Food Science)

ISSN

1338-0230

e-ISSN

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Volume of the periodical

9

Issue of the periodical within the volume

1

Country of publishing house

SK - SLOVAKIA

Number of pages

6

Pages from-to

309-314

UT code for WoS article

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EID of the result in the Scopus database

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