This research was aimed at setting up an analytical method for the determination in pork products of 4-hydroxy-2-nonenal (4-HNE), an aldehyde produced from the oxidation of ö-6-polyunsaturated fatty acids. Such a compound mediates various biological effects, but it is considered to be very toxic to mammalian cells at levels higher than physiological ones. The methods used for the determination of 4-HNE in biological fluids, such as blood, were found to be unsuitable for meat samples because both the repeatability and the recovery in spiked samples were unsatisfactory. A new method, based on solid phase extraction and HPLC-MS/MS, was therefore developed and validated. The limit of detection of 4-HNE in spiked samples was 0.043 mg/kg, and the recovery was 60% depending on the concentration. Good linearity was observed in the range of 0.1-10 mg/kg, and repeatability and interday and intraday precision expressed as relative standard deviation were <10%. The method has been successfully applied to the determination of the aldehyde in samples of various pork products. 4-HNE was present in some products, especially the smoked and/or cooked ones, at levels that might not be a real risk for human health.

Solid phase extraction and liquid chromatography-tandem mass spectrometry for the evaluation of 4-hydroxy-2-nonenal in pork products / Zanardi, Emanuela; Jagersma, C.; Ghidini, Sergio; Chizzolini, Roberto. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 50:(2002), pp. 5268-5272.

Solid phase extraction and liquid chromatography-tandem mass spectrometry for the evaluation of 4-hydroxy-2-nonenal in pork products

ZANARDI, Emanuela;GHIDINI, Sergio;CHIZZOLINI, Roberto
2002-01-01

Abstract

This research was aimed at setting up an analytical method for the determination in pork products of 4-hydroxy-2-nonenal (4-HNE), an aldehyde produced from the oxidation of ö-6-polyunsaturated fatty acids. Such a compound mediates various biological effects, but it is considered to be very toxic to mammalian cells at levels higher than physiological ones. The methods used for the determination of 4-HNE in biological fluids, such as blood, were found to be unsuitable for meat samples because both the repeatability and the recovery in spiked samples were unsatisfactory. A new method, based on solid phase extraction and HPLC-MS/MS, was therefore developed and validated. The limit of detection of 4-HNE in spiked samples was 0.043 mg/kg, and the recovery was 60% depending on the concentration. Good linearity was observed in the range of 0.1-10 mg/kg, and repeatability and interday and intraday precision expressed as relative standard deviation were <10%. The method has been successfully applied to the determination of the aldehyde in samples of various pork products. 4-HNE was present in some products, especially the smoked and/or cooked ones, at levels that might not be a real risk for human health.
2002
Solid phase extraction and liquid chromatography-tandem mass spectrometry for the evaluation of 4-hydroxy-2-nonenal in pork products / Zanardi, Emanuela; Jagersma, C.; Ghidini, Sergio; Chizzolini, Roberto. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 50:(2002), pp. 5268-5272.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1464002
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