Publication
Inactivation kinetics of Alicyclobacillus acidoterrestris in apple juice submitted to ultraviolet radiation
| dc.contributor.author | Tremarin, Andréia | |
| dc.contributor.author | Brandão, Teresa R. S. | |
| dc.contributor.author | Silva, Cristina L. M. | |
| dc.date.accessioned | 2017-12-19T19:08:12Z | |
| dc.date.available | 2017-12-19T19:08:12Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | Ultraviolet-C radiation (UV-C) is widely used as an alternative strategy to control microorganism in food products. Alicyclobacillus acidoterrestris is a thermo-acidophilic, non-pathogenic and spore-forming bacterium, able to grow at low pH and high temperatures. It is a concern, particularly in apple juice thermal pasteurization, because it is responsible for quality degradation. The main objective of this work was to study the influence of UV-C radiation treatments with seven different intensities (0.34, 0.86, 2.59, 5.59, 8.45, 11.50 and 13.44 W/m2) on A. acidoterrestris inactivation in apple juices. Treatments were carried out in a camera (75 × 70 × 45 cm3) with four germicidal UV lamps with peak emission at 254 nm. Commercial juices were artificially inoculated with bacterium, with initial loads around 107 CFU/mL and then exposed to UV-C radiation and the treatment impact on microbial loads was assessed throughout exposure times. The UV transmittance at 254 nm of the juice was 58%. Results showed that the log-survival of A. acidoterrestris decreased linearly with treatment time, for all intensities tested. When the most severe intensity was used, the number of spores decreased drastically (around 5-log reduction) after 8 min of treatment. Overall it can be concluded that UV-C radiation is a promising treatment with a drastic impact on the loads of A. acidoterrestris in apple juices, especially when high intensities are used. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Tremarin, A., Brandão, T. R. S., & Silva, C. L. M. (2017). Inactivation kinetics of alicyclobacillus acidoterrestris in apple juice submitted to ultraviolet radiation. Food Control, 73, 18-23 | pt_PT |
| dc.identifier.doi | 10.1016/j.foodcont.2016.07.008 | pt_PT |
| dc.identifier.eid | 84979573623 | |
| dc.identifier.eissn | 1873-7129 | |
| dc.identifier.issn | 0956-7135 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/23773 | |
| dc.identifier.wos | 000390636300004 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | 11761/13-0 | pt_PT |
| dc.relation | Exploitation of bioactive and nutritive compounds from waste parts of fruits, seeking development of new strategies for adding value to fruit waste | |
| dc.subject | Ultraviolet-C inactivation | pt_PT |
| dc.subject | Apple juices | pt_PT |
| dc.subject | Alicyclobacillus acidoterrestris | pt_PT |
| dc.title | Inactivation kinetics of Alicyclobacillus acidoterrestris in apple juice submitted to ultraviolet radiation | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Exploitation of bioactive and nutritive compounds from waste parts of fruits, seeking development of new strategies for adding value to fruit waste | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F101179%2F2014/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT | |
| oaire.citation.endPage | 23 | pt_PT |
| oaire.citation.startPage | 18 | pt_PT |
| oaire.citation.title | Food Control | pt_PT |
| oaire.citation.volume | 73 | pt_PT |
| oaire.fundingStream | 5876 | |
| person.familyName | Brandão | |
| person.familyName | Silva | |
| person.givenName | Teresa | |
| person.givenName | Cristina | |
| person.identifier | J-9418-2012 | |
| person.identifier | 1473674 | |
| person.identifier.ciencia-id | 7B19-E23B-BB31 | |
| person.identifier.ciencia-id | 6611-634A-132C | |
| person.identifier.orcid | 0000-0002-8857-6471 | |
| person.identifier.orcid | 0000-0002-0495-3955 | |
| person.identifier.rid | J-9418-2012 | |
| person.identifier.rid | A-3568-2013 | |
| person.identifier.scopus-author-id | 6602174128 | |
| person.identifier.scopus-author-id | 7201387397 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | restrictedAccess | pt_PT |
| rcaap.type | article | pt_PT |
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