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Open AccessArticle

Nutrition Quality Parameters of Almonds as Affected by Deficit Irrigation Strategies

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Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Food Technology, Research Group “Food Quality and Safety”, Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
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Departamento de Ciencias Agroforestales, ETSIA, Universidad de Sevilla, Carretera de Utrera, km 1, 41013 Sevilla, Spain
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Unidad Asociada al CSIC de Uso Sostenible del Suelo y el Agua en la Agricultura (US-IRNAS), Crta de Utrera km 1, 41013 Sevilla, Spain
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Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Environmental Economics, Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
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Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Plant Science and Microbiology, Research Group “Plant Production and Technology”, Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
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BCCInnovation, Technological Center in Gastronomy, Juan Avelino Barriola 101, 20009-Donostia-San Sebastián, Gipuzkoa, Spain
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Basque Culinary Center, Mondragon Unibersitatea, Juan Avelino Barriola 101, 20009-Donostia-San Sebastián, Gipuzkoa, Spain
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Author to whom correspondence should be addressed.
Academic Editors: Diego A. Moreno and Débora Villaño
Molecules 2019, 24(14), 2646; https://doi.org/10.3390/molecules24142646
Received: 12 July 2019 / Accepted: 19 July 2019 / Published: 21 July 2019
(This article belongs to the Special Issue Bioactives and Functional Ingredients in Foods and Beverages)
The influence of full irrigation, double-regulated (RDI) and sustained deficit irrigation (SDI) treatments on almond quality was assessed by analyzing different parameters: sugars, organic acids, antioxidant activity, total phenolic content (TPC), and volatile compounds. Almond quality studies for plants submitted to water stress are scarce, and it is essential to understand the biochemical responses of plants to water stress in maintaining fruit yield and quality. Citric acid, sucrose, antioxidant activity, and TPC were not affected by the application of studied deficit irrigation strategies (DI). An increase in malic acid and a decrease in glucose was observed for stressed samples (T3 and T4), while a higher number of total volatiles compounds was found for moderate RDI (T2). Using deficit irrigation strategies, the almond yield and quality was not changed, and in fact, some parameters, such as glucose and key volatile compounds, slightly increased under moderate RDI. This finding might encourage farmers to implement these strategies and contribute to sustainable agriculture. View Full-Text
Keywords: sugars; antioxidants; phenols; volatile compounds; hydroSOStainable products; Prunus dulcis sugars; antioxidants; phenols; volatile compounds; hydroSOStainable products; Prunus dulcis
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MDPI and ACS Style

Lipan, L.; Moriana, A.; López Lluch, D.B.; Cano-Lamadrid, M.; Sendra, E.; Hernández, F.; Vázquez-Araújo, L.; Corell, M.; Carbonell-Barrachina, Á.A. Nutrition Quality Parameters of Almonds as Affected by Deficit Irrigation Strategies. Molecules 2019, 24, 2646.

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