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Publication details

Document type
Journal articles

Document subtype
Full paper

Title
Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products

Participants in the publication
Carla Alegria (Author)
cE3c/FCUL
 Cristina Antunes (Author)
cE3c/FCUL
 Manuela Giovanetti (Author)
cE3c/FCUL
 Marta Abreu (Author)
INSTITUTO NACIONAL DE INVESTIGAÇÃO AGRÁRIA E VETERINÁRIA, I.P.
 Cristina Máguas (Author)
Dep. Biologia Vegetal
 cE3c
Summary
It is often overlooked that even food production is linked to the ecology of plants and animals. Living organisms respond to environmental short-and long-term variability: acknowledging this may help in the ultimate goal of valorizing a territory/product. We investigated acorns of the two main Quercus species of the Portuguese Montado, a main feed of the renown black Iberian pig. We tested their responses to an aridity gradient by morphological parameters and isotopic signature. Q. rotundifolia and Q. suber acorns did not differ morphologically, even if a higher variability in all parameters was observed in acorns of Q. suber. According to the site-specific Aridity Index, correlations are indicative to higher weight and length only in Q. suber acorns from more arid sites. As for isotopic composition, there were no differences in nitrogen or carbon (δ15N and δ13C) between the two species. However, combining the samples and testing for association with the Aridity Index, we found that more arid sites lead to a 15N enrichment. This result, combined with the positive correlation between AI and acorns length, support the use of acorns as a tool, their isoscapes of nitrogen being a stepping stone for the provenance of the black Iberian pig.

Date of Submisson/Request
2020-02-25
Date of Acceptance
2020-03-27
Date of Publication
2020-03-27

Institution
Centro de Ecologia, Evolução e Alterações Ambientais

Where published
Molecules

Publication Identifiers
ISSN - 1420-3049

Publisher
MDPI AG

Volume
25
Number
7

Starting page
1535

Document Identifiers
DOI - https://doi.org/10.3390/molecules25071535
URL - http://dx.doi.org/10.3390/molecules25071535

Rankings
SCIMAGO Q2 (2020) - 0.782 - Analytical Chemistry

Keywords
Quercus rotundifolia Quercus suber physiological traits δ15N aridity index isoscapes

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APA
Carla Alegria, Cristina Antunes, Manuela Giovanetti, Marta Abreu, Cristina Máguas, (2020). Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products. Molecules, 25, ISSN 1420-3049. eISSN . http://dx.doi.org/10.3390/molecules25071535

IEEE
Carla Alegria, Cristina Antunes, Manuela Giovanetti, Marta Abreu, Cristina Máguas, "Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products" in Molecules, vol. 25, 2020. 10.3390/molecules25071535

BIBTEX
@article{45141, author = {Carla Alegria and Cristina Antunes and Manuela Giovanetti and Marta Abreu and Cristina Máguas}, title = {Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products}, journal = {Molecules}, year = 2020, volume = 25 }