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http://hdl.handle.net/20.500.12207/5939
Title: | Comparing different packaging conditions on quality stability of high-pressure treated Serra da Estrela cheeses during cold storage |
Authors: | Inácio, Rita S. Monteiro, Maria J. P. Lopes-da-Silva, José A Gomes, Ana M. P. Saraiva, Jorge A. |
Keywords: | Ewe raw milk cheese High pressure Vacuum Wrapped in paper Plastic film Microbial Evolution Safety Storage Sensorial Proteolysis |
Issue Date: | 9-May-2023 |
Citation: | Inácio, R., Monteiro, M., Lopes-da-Silva, J., Gomes, A. & Saraiva, J. (2023). Comparing different packaging conditions on quality stability of high-pressure treated Serra da Estrela cheeses during cold storage. Foods, 12(10), 1-17, https://doi.org/10.3390/foods12101935 |
Abstract: | Serra da Estrela cheese with a Protected Designation of Origin (PDO) is a traditional cheese that is wrapped in paper without vacuum. High-pressure processing (HPP), which requires vacuum packaging of the cheese, has been used for its cold pasteurization to overcome safety issues. In this study, two packaging systems were studied: non-vacuum greaseproof paper wrapping package and vacuum packaging in plastic film. Lactococci, lactobacilli, enterococci, and total mesophiles reached ca. 8 log cfu g-1 and 4-6 log cfu g-1 in control (unpasteurized) and HPP-treated cheeses, respectively, with no significant differences between packaging systems. Spoilage microorganisms' viable cell numbers were reduced to <3 log cfu g-1 (quantification limit) in HPP-treated cheeses, independently of the packaging system. Yeasts and molds reached >5 log cfu g-1 in non-vacuum paper-wrapped cheeses. A vacuum-packaging system enabled better control of cheese proteolysis, which was revealed to be closer to that of the original control cheese values at the end of the 10-month storage period. In addition, cheese stored under vacuum film packaging became harder than non-vacuum paper-wrapped cheeses at each time point. Overall, conventional non-vacuum paper wrapping is adequate for short storage periods (<3 months), but for long periods vacuum packaging in plastic film is preferable. |
Peer reviewed: | yes |
URI: | https://hdl.handle.net/20.500.12207/5939 |
metadata.dc.identifier.doi: | https://doi.org/10.3390/foods12101935 |
ISSN: | 2304-8158 |
Publisher version: | https://www.mdpi.com/journal/foods |
Appears in Collections: | D-TCA - Artigos em revistas indexadas à WoS/Scopus |
Files in This Item:
File | Description | Size | Format | |
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foods-12-01935-v2_PDFA.pdf | 4.32 MB | Adobe PDF | View/Open |
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