Tipo
Artigos em Revista
Tipo de Documento
Artigo Completo
Título
Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products
Participantes na publicação
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
Resumo
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.
Data de Submissão/Pedido
2020-02-25
Data de Aceitação
2020-03-27
Data de Publicação
2020-03-27
Instituição
Centro de Ecologia, Evolução e Alterações Ambientais
Suporte
Molecules
Identificadores da Publicação
ISSN - 1420-3049
Editora
MDPI AG
Identificadores do Documento
DOI -
https://doi.org/10.3390/molecules25071535
URL -
http://dx.doi.org/10.3390/molecules25071535
Identificadores de Qualidade
SCIMAGO Q2 (2020) - 0.782 - Analytical Chemistry
Keywords
Quercus rotundifolia
Quercus suber
physiological traits
δ15N
aridity index
isoscapes
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