1. How does water stress affect the low molecular weight phenolics of hydroSOStainable almonds?
- Author
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Lipan L, Collado-González J, Wojdyło A, Domínguez-Perles R, Gil-Izquierdo Á, Corell M, Moriana A, Cano-Lamadrid M, and Carbonell-Barrachina Á
- Subjects
- Agricultural Irrigation, Antioxidants analysis, Dehydration, Flavonoids analysis, Flavonoids chemistry, Molecular Weight, Nuts chemistry, Phenols analysis, Polyphenols analysis, Polyphenols chemistry, Proanthocyanidins analysis, Proanthocyanidins chemistry, Prunus dulcis growth & development, Spain, Phenols chemistry, Prunus dulcis chemistry
- Abstract
Water scarcity is a threat for food production because, water, is more and more limited and force farmers to use new deficit irrigation (DI) strategies without affecting fruit yield and quality. No information exists on almond polyphenols and proanthocyanidins (PAs) produced under DI. The present work studied the effect of 2 regulated DI (RDI) and one sustained (SDI) on the low molecular weight phenolics together with the antioxidant activity (AA) in almonds. Fifteen phenolic compounds were identified (13 flavonoids and 2 non-flavonoids) and 10 PAs. Kaempferol-3-O-galactoside was the predominant compound in almond skin and whole kernel but it was not found in deskinned kernels. The use of moderate RDI significantly increased the total phenolic content in skin (∼9.8%), PAs, and the AA. Consequently, after one season the application of DI positively affected the almond cv. Vairo phenols, however, several seasons must be evaluated in order to corroborate the present results., (Copyright © 2020 Elsevier Ltd. All rights reserved.) more...
- Published
- 2021
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