Next Article in Journal
Glycosylated-Chitosan Derivatives: A Systematic Review
Next Article in Special Issue
Use of Lead Isotopic Ratios as Geographical Tracer for Lambrusco PDO Wines
Previous Article in Journal
Novel Approach to Automated Flow Titration for the Determination of Fe(III)
Previous Article in Special Issue
Carbon and Nitrogen Isotope Ratios of Food and Beverage in Brazil
Article

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

1
cE3c—Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
2
Unidade Tecnologia e Inovação, Instituto Nacional de Investigação Agrária e Veterinária, I.P. Av. da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
3
CREA—Research Centre for Agriculture and Environment, Via di Saliceto 80, 40128 Bologna, Italy
4
LEAF—Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
*
Authors to whom correspondence should be addressed.
Academic Editors: Nives Ogrinc and Federica Camin
Molecules 2020, 25(7), 1535; https://doi.org/10.3390/molecules25071535
Received: 25 February 2020 / Revised: 24 March 2020 / Accepted: 27 March 2020 / Published: 27 March 2020
(This article belongs to the Special Issue Isotopic Techniques for Food Science)
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. View Full-Text
Keywords: Quercus rotundifolia; Quercus suber; physiological traits; δ15N; aridity index; isoscapes Quercus rotundifolia; Quercus suber; physiological traits; δ15N; aridity index; isoscapes
Show Figures

Graphical abstract

MDPI and ACS Style

Alegria, C.; Antunes, C.; Giovanetti, M.; Abreu, M.; Máguas, C. Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products. Molecules 2020, 25, 1535. https://doi.org/10.3390/molecules25071535

AMA Style

Alegria C, Antunes C, Giovanetti M, Abreu M, Máguas C. Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products. Molecules. 2020; 25(7):1535. https://doi.org/10.3390/molecules25071535

Chicago/Turabian Style

Alegria, Carla, Cristina Antunes, Manuela Giovanetti, Marta Abreu, and Cristina Máguas. 2020. "Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado’s High-Value Food Products" Molecules 25, no. 7: 1535. https://doi.org/10.3390/molecules25071535

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop