6533b838fe1ef96bd12a4faf

RESEARCH PRODUCT

Determination of stilbenes in Sicilian pistachio by high-performance liquid chromatographic diode array (HPLC-DAD/FLD) and evaluation of eventually mycotoxin contamination

Gioacchino AielloFrancesca OliveriLucia CrostaFrancesca GrippiManlio TolomeoNicola GebbiaAlice Curione

subject

ChromatographybiologyAspergillus flavusGeneral MedicineContaminationbiology.organism_classificationHigh-performance liquid chromatographyDiode arrayAspergillus parasiticusAnalytical Chemistrychemistry.chemical_compoundGlucosidechemistryAnacardiaceaeMycotoxinFood Science

description

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.

https://doi.org/10.1016/j.foodchem.2007.07.079