Effects of Deficit Irrigation, Rootstock, and Roasting on the Contents of Fatty Acids, Phytoprostanes, and Phytofurans in Pistachio Kernels

  • Jacinta Collado-González /
  • Marina Cano-Lamadrid /
  • David Pérez-López /
  • ángel A. Carbonell-Barrachina /
  • Ana Centeno /
  • Sonia Medina /
  • Isabel Griñán /
  • Alexandre Guy /
  • Jean Marie Galano /
  • Thierry Durand /
  • Raúl Domínguez-Perles /
  • Arturo Torrecillas /
  • Federico Ferreres /
  • ángel Gil-Izquierdo
Journal ar
Journal of Agricultural and Food Chemistry
  • Volumen: 68
  • Número: 33
  • Fecha: 19 agosto 2020
  • Páginas: 8915-8924
  • ISSN: 15205118 00218561
  • Tipo de fuente: Revista
  • DOI: 10.1021/acs.jafc.0c02901
  • Tipo de documento: Artículo
  • Editorial: American Chemical
Copyright © 2020 American Chemical Society.Pistachio (Pistacia vera L.) is a drought-Tolerant species grown under the semiarid conditions of the Mediterranean basin. For this reason, it is essential to make an exhaustive quantification of yield and quality benefits of the kernels because the regulated deficit irrigation will allow significant water savings with a minimum impact on yield while improving kernel quality. The goal of this scientific work was to study the influence of the rootstock, water deficit during pit hardening, and kernel roasting on pistachio (P. vera, cv. Kerman) fruit yield, fruit size, and kernel content of fatty acids phytoprostanes (PhytoPs) and phytofurans (PhytoFs) for the first time. Water stress during pit hardening did not affect the pistachio yield. The kernel cultivar showed a lower oleic acid and a higher linoleic acid contents than other cultivars. Kernels from plants grafted on the studied rootstocks showed very interesting characteristics. P. integerrima led to the highest percentage of monounsaturated fatty acids. Regarding the plant oxylipins, P.Terebinthus led to the highest contents of PhytoPs and PhytoFs (1260 ng/100 g and 16.2 ng/100 g, respectively). In addition, nuts from trees cultivated under intermediate water deficit during pit hardening showed increased contents of the 9-series F1-phytoprostanes and ent-16(RS)-9-epi-ST- "14-10-phytofuran. However, roasting of pistachios led to PhytoP degradation. Therefore, plant cultivar, deficit irrigation, rootstock, and roasting must be considered to enhance biosynthesis of these secondary metabolites. New tools using agricultural strategies to produce hydroSOS pistachios have been opened thanks to the biological properties of these prostaglandin-like compounds linking agriculture, nutrition, and food science technology for further research initiatives.

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