Phenolic and triterpenoid composition and inhibition of α-amylase of pistachio kernels (Pistacia vera L.) as affected by rootstock and irrigation treatment

Luis Noguera-Artiaga, David Pérez-López, Armando Burgos-Hernández, Aneta Wojdyło, Ángel A. Carbonell-Barrachina

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23 Scopus citations

Abstract

© 2018 Elsevier Ltd The current water scarcity forces farmers to adopt new irrigation strategies to save water without jeopardizing the fruit yield and quality. In this study, the influence of 3 regulated deficit irrigation (RDI) treatments and 3 rootstocks on the functional quality of pistachios were studied. The functional parameters studied included, polyphenols, triterpenoids, and inhibition of α-amylase. The results showed that P. terebinthus and P. atlantica rootstocks led to pistachio kernels with higher contents of polyphenols and triterpenoids (mainly betulinic acid with 111 and 102 µg g−1, respectively) than pistachios obtained using P. integerrima rootstock (81 µg g−1). On the other hand, the use of moderate RDI (T1 treatment) increased the total content of polyphenols (∼10%), quercetin-O-galloyl-hexoside (∼15%), keampferol-3-O-glucoside (∼19%), and polymeric procyanidins (∼20%), as compared to the control trees, resulting in pistachios with a better functional profile, lower economic cost and with a lesser environmental impact.
Original languageAmerican English
Pages (from-to)240-245
Number of pages6
JournalFood Chemistry
DOIs
StatePublished - 30 Sep 2018

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