03508naa a2200301 a 450000100080000000500110000800800410001902400340006010000160009424501330011026000090024350007750025252018460102765300300287365300240290365300160292765300090294365300090295265300290296165300160299065300120300665300160301870000120303470000160304670000160306270000170307877301110309510633592022-12-02       2022    bl uuuu     u00u1 u    #d7 a10.3389/fnut.2022.8680542DOI1 aFERRARI, V.  aInfluence of Cultivar on Nutritional Composition and Nutraceutical Potential of Pecan Growing in Uruguay.h[electronic resource]  c2022  aArticle history: Received 02 February 2022; Accepted 30 May 2022; Published: 22 June 2022. -- Correspondence: Facundo Ibáñez, fibanez@inia.org.uy  -- Edited by: Elena Ibañez, Institute of Food Science Research (CSIC), Spain. Reviewed by: Anabela Marisa Azul, University of Coimbra, Portugal; Lucia Panzella, University of Naples Federico II, Italy; Abraham Wall-Medrano, Universidad Autónoma de Ciudad Juárez, Mexico. LICENCE: This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). -- This article is part of the research topic "Insights into Food Science and Technology in Latin America" - https://www.frontiersin.org/research-topics/27424/insights-into-food-science-and-technology-in-latin-america#articles  aABSTRACT. - Composition and antioxidant properties of sixteen pecan [Carya illinoinensis (Wangenh) K. Koch] cultivars grown simultaneously in a single experimental orchard in Uruguay were evaluated to characterize their nutritional properties and nutraceutical potential. The percentage of oil, moisture, ash, minerals, and proteins were determined and also the fatty acid profile. Total phenolic compounds [18-41 mg gallic acid equivalents (GAEs)/g], condensed tannin [2-12 mg catechin equivalents (CEs)/g], and tocopherols (110-163 ?g/g) contents were estimated in nut kernels. Total phenolic compounds (32-117 mg GAE/g), condensed tannins (130-357 mg CE/g), and total anthocyanins (1-3 mg 3-glucoside cyanidin/g) were also determined for pecan shells. The antioxidant activity in shells [57.15-578.88 ?mol Trolox equivalents (TEs)/g] was 5 times higher compared with the kernels (23.15-156.60 ?mol TEs/g) measured with hydrophilic ORAC. Bioactive compounds concentrations present statistically significant genetic variability between cultivars studied (p < 0.05). The presence of phenolic compounds was related with high-antioxidant capacity in kernels and shells, and a strong correlation between content of total phenolic compounds and condensed tannins in pecan shells was found. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) show association between cultivars and the observed variables. The nutritional profile in the different cultivars showed the trends described in other countries, but this work shows some significant differences that could be attributed to the specific edaphoclimatic conditions of cultivation in Uruguay.  Copyright © 2022 Ferrari, Gil, Heinzen, Zoppolo and Ibáñez. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).  aAntioxidant activity (AA)  aCarya illinoinensis  aFatty acids  aNuts  aORAC  aPLATAFORMA AGROALIMENTOS  aPolyphenols  aTannins  aTocopherols1 aGIL, G.1 aHEINZEN, H.1 aZOPPOLO, R.1 aIBÁÑEZ, F.  tFrontiers in Nutrition, 2022, volume 9, e868054. OPEN ACESS. doi: https://doi.org/10.3389/fnut.2022.868054