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http://hdl.handle.net/20.500.12207/5618
Title: | Preservation under pressure (hyperbaric storage) at 25ºC, 30ºC and 37ºC of a highly perishable dairy food and comparison with refrigeration |
Authors: | Duarte, R.V. Moreira, S.A. Fernandes, P.A.R. Fidalgo, Liliana G. Santos, M.D. Queirós, R.P. Santos, D.I. Delgadillo, I. Saraiva, J.A. |
Keywords: | Food preservation High pressure Hyperbaric storage Refrigeration Whey cheese |
Issue Date: | 2015 |
Publisher: | Taylor & Francis |
Citation: | Duarte, R., Moreira, S., Fernandes, P., Fidalgo, L., Santos, M., Queirós, R., Santos, D., Delgadillo, I. & Saraiva, J. (2015). Preservation under pressure (hyperbaric storage) at 25°C, 30°C and 37°C of a highly perishable dairy food and comparison with refrigeration. CyTA - Journal of Food, 13(3), 321-328. https://doi.org/10.1080/19476337.2014.971876 |
Abstract: | Hyperbaric storage (HS) under mild pressure of requeijão, a traditional Portuguese whey cheese, as a case study of a highly perishable dairy food, was evaluated as a possible energy costless alternative to refrigeration. Whey cheese was stored for 4 and 8 hours, at different pressure levels (0.1, 100 and 150 MPa) and temperatures (25°C, 30°C and 37°C), and the results were compared with refrigeration (4°C). Microbial analyses showed that storage for 4 hours at 100 MPa was able to maintain microbial counts similar to refrigeration and initial load, ≈3 Log10 CFU/g, at all tested temperatures. By increasing the pressure to 150 MPa and the storage time to 8 hours, microbial loads were reduced to undetectable counts, with the exception for total aerobic mesophiles that were reduced to about ≈1 Log unit. HS in general maintained pH, water activity and lipid oxidation values, at levels similar to that in refrigeration. |
Peer reviewed: | yes |
URI: | http://hdl.handle.net/20.500.12207/5618 |
metadata.dc.identifier.doi: | https://doi.org/10.1080/19476337.2014.971876 |
ISSN: | 1947-6337 |
Publisher version: | https://www.tandfonline.com/journals/TCYT |
Appears in Collections: | D-TCA - Artigos em revistas indexadas à WoS/Scopus |
Files in This Item:
File | Description | Size | Format | |
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Preservation under pressure (hyperbaric storage)_PDFA.pdf | 208.47 kB | Adobe PDF | View/Open |
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