Inactivation of Staphylococcus aureus and native microflora of human milk by high pressure processing
PBN-AR
Instytucja
Instytut Wysokich Ciśnień Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
High Pressure Research
ISSN
0895-7959
EISSN
1477-2299
Wydawca
Taylor & Francis Ltd
Rok publikacji
2015
Numer zeszytu
2
Strony od-do
181-188
Numer tomu
35
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
human milk
high pressure processing (HPP)
Staphylococcus aureus
Enterobacteriaceae
Streszczenia
Język
en
Treść
The storage of unpreserved food, including breast milk, is associated with the growth of microorganisms, including pathogenic bacteria. It is therefore necessary to use suitable processes to eliminate pathogenic microorganisms and reduce the total microbial count in order to ensure product safety for consumers. In the present study, samples of milk obtained from volunteers donating to the human milk bank were artificially contaminated with Staphylococcus aureus ATCC 6538. This bacteria was the model microorganism of choice, being relatively resistant to high pressure as well as posing the most serious risk to infant health. The results obtained show that high pressure processing can reduce the count of S. aureus by about 5 log units at 4°C and about 8 log units at 50°C, and totally eliminate Enterobacteriaceae after 5 min of treatment, and result in a total microbial count reduction after 10 min treatment at 500 MPa at 20°C and 50°C. This suggests the possibility of this technology being applied to ensure the adequate safety and quality of human breast milk in human milk banks.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
600956
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