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Evaluation of gamma-irradiated aromatic herbs: Chemometric study of samples submitted to extended storage periods

2018Journal article Open access
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dc.contributor.authorPereira, Eliana
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorBarros, Lillian
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2018-07-31T15:22:43Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2018-07-31T15:22:43Z
dc.date.issued2018
dc.description.abstractThe preserving capacity of gamma radiation (10 kGy) on the chemical, nutritional and antioxidant components of Aloysia citrodora Paláu, Melissa officinalis L., Melittis melissophyllum L. and Mentha piperita L., stored for 12 and 18 months, was evaluated. Despite the maintenance of the main characteristics during the first 12 months of storage, the additional 6 months induced several significant changes in individual compounds. In general, the analyzed species reacted dissimilarly throughout time, but it was possible to verify that the fatty acids, tocopherols and antioxidant capacity presented the most significant changes after 18 months of storage, inclusively in samples submitted to gamma radiation. In fact, the applied treatment (10 kGy) did not seem to be effective to prevent the decrease of free sugars, organic acids and tocopherols, especially considering the 18 months period. On the other hand, the evolution in color parameters indicated a greener color (yet slightly more yellow) among irradiated samples. Likewise, gamma radiation had a positive effect on oleic acid, β-carotene bleaching inhibition (in infusions), DPPH scavenging activity and reducing power (in methanolic extracts). Nevertheless, it might be generally concluded that gamma radiation is less suitable than electron-beam to maintain the characteristics of dried herbs during extended storage periods.
dc.description.sponsorshipThe authors are grateful to the Ministry of Agriculture, Portugal (Project PRODER/FEADER/EU, AROMAP), for financial support of the work and E. Pereira grant. Authors also thank Foundation for Science and Technology (FCT, Portugal) for financial support to CIMO (UID/ AGR/00690/2013), REQUIMTE (UID/QUI/50006/2013 - POCI/01/ 0145/FEDER/007265), C2TN (RECI/AAG-TEC/0400/2012 and UID/ Multi/04349/2013 projects), J.C.M. Barreira (BPD/72802/2010) and L. Barros (SFRH/BPD/107855/2015) grants. The authors are also grateful to “MaisErvas - Aromáticas e Medicinais” for providing the plant material.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationPereira, Eliana; Antonio, Amilcar L.; Barreira, João C.M.; Verde, Sandra Cabo; Barros, Lillian; Oliveira, M. Beatriz P.P.; Ferreira, Isabel C.F.R. (2018). Evaluation of gamma-irradiated aromatic herbs: Chemometric study of samples submitted to extended storage periods. Food Research International. ISSN 0963-9969. 111, p. 272-280en_EN
dc.identifier.doi10.1016/j.foodres.2018.05.051en_EN
dc.identifier.issn0963-9969
dc.identifier.urihttp://hdl.handle.net/10198/15370
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationApplication of Ionizing Radiation for a Sustainable Environment
dc.relationBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
dc.relationProviding industry and consumers with new alternative sources of natural additives from plant origin in the classes of preservatives and colouring agents: extraction, purification, stabilization and product development
dc.subjectAntioxidant activityen_EN
dc.subjectChemical/nutritional compositionen_EN
dc.subjectDried plantsen_EN
dc.subjectExtended storageen_EN
dc.subjectGamma radiationen_EN
dc.titleEvaluation of gamma-irradiated aromatic herbs: Chemometric study of samples submitted to extended storage periodsen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleApplication of Ionizing Radiation for a Sustainable Environment
oaire.awardTitleBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
oaire.awardTitleProviding industry and consumers with new alternative sources of natural additives from plant origin in the classes of preservatives and colouring agents: extraction, purification, stabilization and product development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F107855%2F2015/PT
oaire.fundingStream5876
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person.familyNameAntonio
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person.familyNameFerreira
person.givenNameEliana
person.givenNameAmilcar L.
person.givenNameJoão C.M.
person.givenNameLillian
person.givenNameIsabel C.F.R.
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person.identifier.ridQ-8017-2018
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person.identifier.scopus-author-id55938912300
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person.identifier.scopus-author-id54895546900
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
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project.funder.nameFundação para a Ciência e a Tecnologia
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rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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