Publication
Multivariate geostatistical analysis of stable isotopes in Portuguese varietal extra virgin olive oils
| dc.contributor.author | Jiménez-Morillo, Nicasio T. | |
| dc.contributor.author | Palma, Vera | |
| dc.contributor.author | Garcia, Raquel | |
| dc.contributor.author | Pereira, J.A. | |
| dc.contributor.author | Dias, Cristina Barrocas | |
| dc.contributor.author | Cabrita, Maria João | |
| dc.date.accessioned | 2018-02-19T10:00:00Z | |
| dc.date.accessioned | 2020-06-22T10:18:51Z | |
| dc.date.available | 2018-01-19T10:00:00Z | |
| dc.date.available | 2020-06-22T10:18:51Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Stable isotope contents of carbon, hydrogen and oxygen are known to reflect the geo-climatic conditions under which olives grown. This study aims to unravel the correlation between some of the main geographic variables and the isotopic composition of different Portuguese varietal extra virgin olive oil (EVOO) samples. Thus, the isotopic composition (δ13C, δ18O and δ2H) of 38 EVOO samples from 11 olive varieties from 2 Portuguese regions (Alentejo and Trás-os-Montes) was studied using an elemental analyzer coupled to an isotope ratio mass spectrometry. Multivariate analysis indicated that bulk δ13C, δ2H and δ18O values were enough to significantly (P < 0.05) predict altitude, latitude, longitude, temperature, rainfall, and sea distance. This work showed that the assessment of EVOO isotopic composition give information not only on the geographic origin, but also on the environmental conditions. To the best of our knowledge, this is the first report on bulk isotopic composition of Portuguese EVOOs. | |
| dc.description.sponsorship | This work was funded by European Regional Development Fund (FEDER) and National Funds through Foundation for Science and Technology (FCT) under Project “Por3O - Portuguese Olive Oil Omics for traceability and authenticity - PTDC/AGRPRO/2003/2014, and by National Funds through FCT - Foundation for Science and Technology under the Projects UIDB/05183/2020 and UID/AGR/00690/2019. Pedro N. Jiménez-Morillo is acknowledged for statistical assistance. | |
| dc.description.version | info:eu-repo/semantics/publishedVersion | en_EN |
| dc.identifier.citation | Jiménez-Morillo, Nicasio T.; Palma, Vera; Garcia, Raquel; Pereira, José Alberto; Dias, Cristina Barrocas; Cabrita, Maria João (2020). Multivariate geostatistical analysis of stable isotopes in Portuguese varietal extra virgin olive oils. Microchemical Journal. ISSN 0026-265X. 157, p. 1-7 | en_EN |
| dc.identifier.doi | 10.1016/j.microc.2020.105044 | en_EN |
| dc.identifier.issn | 0026-265X | |
| dc.identifier.uri | http://hdl.handle.net/10198/19114 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | en_EN |
| dc.subject | Extra virgin olive oil | en_EN |
| dc.subject | Geographic origin | en_EN |
| dc.subject | Multi linear regression | en_EN |
| dc.subject | Stable isotopes | en_EN |
| dc.subject | Statistical analysis | en_EN |
| dc.title | Multivariate geostatistical analysis of stable isotopes in Portuguese varietal extra virgin olive oils | en_EN |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| person.familyName | Pereira | |
| person.givenName | Jose Alberto | |
| person.identifier.ciencia-id | 611F-80B2-A7C1 | |
| person.identifier.orcid | 0000-0002-2260-0600 | |
| person.identifier.rid | L-6798-2014 | |
| person.identifier.scopus-author-id | 57204366348 | |
| rcaap.rights | openAccess | en_EN |
| rcaap.type | article | en_EN |
| relation.isAuthorOfPublication | 7932162e-a2da-4913-b00d-17babbe51857 | |
| relation.isAuthorOfPublication.latestForDiscovery | 7932162e-a2da-4913-b00d-17babbe51857 |