Determination of stilbenes in Sicilian pistachio by high-performance liquid chromatographic diode array (HPLC-DAD/FLD) and evaluation of eventually mycotoxin contamination |
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Authors: | Francesca Grippi Lucia Crosta Gioacchino Aiello Manlio Tolomeo Francesca Oliveri Nicola Gebbia Alice Curione |
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Affiliation: | 1. Co.Ri.Bi.A. (Consorzio di Ricerca sul Rischio Biologico in Agricoltura), Via G. Marinuzzi 3, 90129 Palermo, Italy;2. Dipartimento di Ematologia, Policlinico, Università di Palermo, Via del Vespro 129, 90127 Palermo, Italy |
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Abstract: | In this work, we have investigated about the presence of several natural stilbenes in 12 samples of pistachios harvested from 10 different farms of Sicily (Bronte and Agrigento). At the same time, we have evaluated the relation between the stilbenes synthesis and the possible contamination of mycotoxin produced by Aspergillus flavus and Aspergillus parasiticus. We have found two types of stilbenes in the samples of pistachios examined: trans-resveratrol and trans-resveratrol-3-O-β-glucoside (trans-piceid). Their concentration ranged from 0.07 to 0.18 mg/kg (av. = 0.12 ± 0.03 mg/kg) for trans-resveratrol, from 6.20 to 8.15 mg/kg (av. = 6.97 ± 0.55 mg/kg) for trans-piceid and from 6.38 to 8.27 mg/kg (av. = 7.09 ± 0.54 mg/kg) for total resveratrol. |
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Keywords: | Pistacia vera L Sicilian pistachio HPLC-DAD/FLD Stilbenes trans-Resveratrol trans-Resveratrol-3-O-β-glucoside (trans-Piceid) Mycotoxin |
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