Comprehensive Characterization of Tuber maculatum, New in Uruguay: Morphological, Molecular, and Aromatic Analyses
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Date
2024
Authors
Kuhar, FranciscoTejedor Calvo, Eva
Sequeira, Alejandro
Pelissero, David
Cosse, Mariana
Donnini, Domizia
Nouhra, Eduardo
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Abstract
Although only a few species of Tuber account for the major truffle sales volume, many
species that are not considered delicacies are finding their way to the market, especially in regions
where the traditionally appreciated ones do not occur. This is the case for whitish truffles. Specimens
of whitish truffles were collected in pecan (Carya illinoinensis) orchards in Uruguay in October 2021.
Morphological and molecular methods were used to characterize and assess their identity as Tuber
maculatum Vittad. An SPME extraction of volatile compounds and GC–MS analyses were performed
to characterize the aromatic profile of these specimens and evaluate their potential applications.
Among the 60 VOCs detected, 3-octenone (mushroom odor), 3-octanol (moss, nut, mushroom odor),
and 2H-pyran-2-one (no odor), followed by octen-1-ol-acetate (no odor) and 2-undecanone (orange,
fresh, green odor) were the major compounds in T. maculatum fruiting bodies. The attributes of
exotic edible mushrooms of commercial value in the region are highlighted. In particular, this work
emphasizes the characteristics of truffles as a byproduct of pecan cultivation.
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Bibliographic citation
Journal of Fungi, 2024, 10, 6, 421
AGROVOC subjects
Trufa (hongo)Filogenia
Análisis
Compuestos aromáticos
Other field subjects
Compuestos orgánicos volátilesFilogenia
TUBER
Sponsorship
This study has received funding from the European Union under “Horizon 2020—the
Framework Programme for Research and Innovation (2014–2020)”, INTACT project No 101007623
“Innovation in truffle cultivation, preservation, processing and wild truffle resources management”
and also from “Usina de Códigos de Barra de la Vida” Grant ANII-FMV_1_2021_1_166380. FK, EN,
and DP would like to thank CONICET and UNC.