Determination of selected mycotoxins in feed samples by UHPLC-MS/MS
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Título
Determination of selected mycotoxins in feed samples by UHPLC-MS/MSAutoría
Tutor/Supervisor; Universidad.Departamento
López Benet, Francisco; Universitat Jaume I. Departament de Química Física i AnalíticaFecha de publicación
2019-06Editor
Universitat Jaume IResumen
In the practice of aquaculture, vegetable ingredients and processed animal
protein (PAP) are alternative foods suitable for feeding fish. However, the use of
these materials can introduce contaminants that are not ... [+]
In the practice of aquaculture, vegetable ingredients and processed animal
protein (PAP) are alternative foods suitable for feeding fish. However, the use of
these materials can introduce contaminants that are not previously associated with
salmon. One of these contaminants may be mycotoxins. They are well known as
natural contaminants in plant foods, although they can also grow in PAP during
storage due to the growth of fungi. In this study 17 samples of feed for fish of
vegetable origin were analyzed in order to detect/quantify the presence of 15
different mycotoxins.
The analyses were performed by ultra-high-performance liquid
chromatography (UHPLC) coupled to tandem mass spectrometry with triple
quadrupole. Extraction recoveries between 70 and 120% were obtained for most
analytes. The limits of quantification were lower than the maximum levels allowed
for each mycotoxin. A high confidence confirmation of positive samples was
achieved thanks to the acquisition of three SRM transitions per compound. This
was supported by the deviations below 30% of the Q/q ratios and the retention time
with minor differences of 0.1 min compared to the reference standards.
In all the studied feeds, no mycotoxin exceeded the maximum levels allowed
by the European Commission. The highest concentrations of mycotoxins were
found for FB1 and FB2, with concentrations of 190 and 193 μg/kg, respectively.
The only ones that were not detected or quantified were FUS X, NEO, 3-AcDON,
AFG1, AFG2 and ZEN. [-]
Palabras clave / Materias
Descripción
Treball Final de Grau en Química. Codi: QU0943. Curs acadèmic: 2018/2019
Tipo de documento
info:eu-repo/semantics/bachelorThesisDerechos de acceso
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