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Whey protein isolate edible film: a carrier for probiotic bacteria

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dc.contributor.authorOdila Pereira, Joana
dc.contributor.authorGomes, Ana
dc.contributor.authorPintado, M.M.E
dc.date.accessioned2015-05-08T10:23:07Z
dc.date.available2015-05-08T10:23:07Z
dc.date.issued2014
dc.description.abstractThe use of edible films formulated with bioactive compounds in food products in order to convey new functionalities or extend shelf-life opens new possibilities as support for functional lactic acid bacteria. Thus, active coatings can be obtained by immobilization of the microorganisms in the film, which when in contact with food, will enable the release of microbial bioactive principles and/or after ingestion can directly exert functionality in the human body. Such action may include specific health benefits, such as modulation of the intestinal microbiota that may provide protection against gastrointestinal disorders. Probiotics, when delivered via food or supplement-like forms may contribute to such modulation if their survival and stability is assured until their reaching of the gastrointestinal tract. In this work the main objective was to study the stability of probiotic microorganisms, viz. Bifidobacterium animalis ssp. Lactis BB-12® and Lactobacillus casei 01, in edible films based on whey proteins for coating food products and improving their quality and safety. The selected probiotics at 109 CFU/g of film were incorporated in whey protein-based films to obtain stable edible films to be later applied in food products to provide them antimicrobial protection or make them carriers of viable probiotic bacteria. Films solutions were produced, dried and stored for 60 days to assess stability through the determination of viable cell numbers and physical properties namely color, aw, thickness and weight. The results demonstrated the stability of probiotics in edible films for 60 days at 23 and 4 oC. A loss of viability of ca. 3 log cycles (reaching 106 CFU/g film) was observed until the end of storage at both temperatures. Nevertheless, the final viable cell numbers achieved are still within the minimum threshold necessary for intended biological function in the human body. Physical properties of films did not change throughout storage period.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationODILA PEREIRA, Joana; GOMES, Ana; PINTADO, Manuela - Whey protein isolate edible film: a carrier for probiotic bacteria. In Congress on Food Structure Design, 1st, Porto, Portugal, 15-17 October, 2014. VICENTE, A. A. ; SILVA, C. L. M. ; PIAZZA, L. (eds.) - Book of Abstracts of the 1st Congress on Food Structure Design. Braga: Universidade do Minho, Departamento de Engenharia Biológica, 2014. ISBN 978-989-97478-5-2. p. 84por
dc.identifier.isbn9789899747852
dc.identifier.urihttp://hdl.handle.net/10400.14/17497
dc.language.isoengpor
dc.relationPEstOE/EQB/LA0016/2013por
dc.subjectEdible films/coatingpor
dc.subjectBifidobacteriumpor
dc.subjectLacotbacilluspor
dc.subjectWhey protein isolatepor
dc.titleWhey protein isolate edible film: a carrier for probiotic bacteriapor
dc.typeconference object
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F88383%2F2012/PT
oaire.fundingStreamSFRH
person.familyNameGomes
person.familyNamePintado
person.givenNameAna Maria
person.givenNameMaria Manuela
person.identifier162628
person.identifier456608
person.identifier.ciencia-idAA12-BFC1-B2E3
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.orcid0000-0001-7883-2446
person.identifier.orcid0000-0002-0760-3184
person.identifier.ridB-9944-2013
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id57190668768
person.identifier.scopus-author-id7004483898
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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relation.isAuthorOfPublicationba387c7d-27c9-4016-895c-b35597e91ebc
relation.isAuthorOfPublication.latestForDiscoveryba387c7d-27c9-4016-895c-b35597e91ebc
relation.isProjectOfPublicationacd60970-aab1-4ab9-9a47-df2b0fcf2a6a
relation.isProjectOfPublication.latestForDiscoveryacd60970-aab1-4ab9-9a47-df2b0fcf2a6a

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