Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/87146
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Campo DC | Valor | Idioma |
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dc.contributor.author | Araújo, Alberta | por |
dc.contributor.author | Barbosa, Carla | por |
dc.contributor.author | Alves, Manuel Rui | por |
dc.contributor.author | Romão, Alexandre | por |
dc.contributor.author | Fernandes, Paulo | por |
dc.date.accessioned | 2023-10-31T09:08:33Z | - |
dc.date.available | 2023-10-31T09:08:33Z | - |
dc.date.issued | 2023-10 | - |
dc.identifier.citation | Araújo, M. A.; Barbosa, Carla; Alves, Manuel Rui; Romão, Alexandre; Fernandes, Paulo, Implications of pulsed electric field pre-treatment on goat milk pasteurization. Foods, 12(21), 3913, 2023 | por |
dc.identifier.issn | 2304-8158 | por |
dc.identifier.uri | https://hdl.handle.net/1822/87146 | - |
dc.description.abstract | Goat milk is an interesting product from a nutritional and health standpoint, although its physico-chemical composition presents some technological challenges, mainly for being less stable than cow’s milk at high temperatures. As pasteurization and ultra-high temperature processing are universally employed to ensure milk quality and safety, non-thermal methods, such as pulsed electric fields (PEFs), reduce the microbial load and eliminate pathogens, representing an interesting alternative for processing this product. This study demonstrates how the combined use of a PEF with short thermal processing and moderate temperature can be effective and energy-efficient in goat milk processing. A combination of thermal treatment at 63 °C after a low-intensity PEF (50 µs pulses, 3 Hz, and 10 kV·cm−1) caused the same reduction effect on the population of Listeria monocytogenes (goat’s raw milk artificially spiked), as compared to a thermal treatment at 72 °C without a PEF. However, z values are significantly higher when PEF is used as a pre-treatment, suggesting that it may induce heat resistance in the survival population of L. monocytogenes. The sensitivity of L. monocytogenes to high temperatures is less pronounced in goat’s milk than cow’s milk, with a more pronounced impact of a PEF on lethality when combined with lower temperatures in goat’s milk. The effect of a PEF on Escherichia coli viability was even more pronounced. It was also observed that thermal treatment energy needs with a PEF as a pre-treatment can be reduced by at least 50% of the total energy requirements. | por |
dc.description.sponsorship | This work was funded by UIDB/05937/2020—CISAS funded by national funds, through FCT—Fundação para a Ciência e a Tecnologia. Alexandre Romão was supported by grant BI_01_2021_ CISAS | por |
dc.language.iso | eng | por |
dc.publisher | MDPI AG | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05937%2F2020/PT | por |
dc.rights | openAccess | por |
dc.subject | Pulsed electric fields | por |
dc.subject | PEF | por |
dc.subject | Goats milk | por |
dc.subject | Cows milk | por |
dc.subject | Listeria monocytogenes | por |
dc.subject | E. coli | por |
dc.subject | Pasteurization | por |
dc.title | Implications of pulsed electric field pre-treatment on goat milk pasteurization | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/2304-8158/12/21/3913 | por |
dc.comments | CEB56492 | por |
oaire.citationStartPage | 3913 | por |
oaire.citationIssue | 21 | por |
oaire.citationConferencePlace | Basel, Switzerland | - |
oaire.citationVolume | 12 | por |
dc.date.updated | 2023-10-30T20:59:33Z | - |
dc.identifier.doi | 10.3390/foods12213913 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
sdum.journal | Foods | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_56492_1.pdf | 984,71 kB | Adobe PDF | Ver/Abrir |