Details

Autor(en) / Beteiligte

• Custodio-Mendoza, J.A.
• Caamaño-Fernandez, C.
• Lage, M.A.
• Almeida, P.J.
• Lorenzo, R.A.
• Carro, A.M.

Titel

GC–MS determination of malondialdehyde, acrolein, and 4-hydroxy-2-nonenal by ultrasound-assisted dispersive liquid-liquid microextraction in beverages

Ist Teil von

• Food chemistry, 2022-08, Vol.384, p.132530-132530, Article 132530

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2022

Link zum Volltext

Quelle

ScienceDirect Journals (5 years ago - present)

Beschreibungen/Notizen

• •Simultaneous determination of three secondary lipid peroxidation products by GC–MS.•2,4-dinitrophenylhydrazine derivatization in dispersive liquid-liquid microextraction.•First occurrence study of malondialdehyde, acrolein, and 4-hydroxy-2-nonenal in beverages.•Analysis of 60 different beverage samples including beer, coffee, black tea, and fruit juices. A new, fast, simple, and effective ultrasound-assisted dispersive liquid-liquid microextraction procedure (UA-DLLME) for the gas chromatography-mass spectrometry (GC–MS) determination of malondialdehyde, acrolein, and 4-hydroxy-2-nonenal in beverages was successfully developed. 2,4-Dinitrophenylhydrazine derivatization was performed during extraction. An asymmetrical 3541//18 screening design and a central composite surface response design were used to investigate the influence of the most critical factors during the extraction process (ultrasound time and temperature, extraction and disperser solvents volumes, salt addition, and derivatization reagent concentration). According to FDA guidelines, the method was validated, achieving good linearities with r2 ≥ 0.9982, recoveries between 94.0 and 102.4%, and reproducibility with RSD lower than 4.5%. The method was applied to simultaneously determine the compounds in 60 different beverage samples, including beer, coffee, black tea, and fruit juices. The presence of secondary lipid oxidation products is demonstrated in beverages with a strong roasting process or oxidation.