RT Journal Article
T1 Comparative analysis of ultrasound-accelerated alkaline and acid hydrolysis for the indirect determination of 3-monochloropropane-1,2-diol fatty acid esters
A1 Custodio Mendoza, Jorge Antonio
A1 Arribas García, Alberto
A1 Lorenzo Ferreira, Rosa Antonia
A1 Carro Díaz, Antonia María
K1 3-MCPD
K1 Edible oils
K1 Fatty acid esters
K1 GC–MS
K1 Indirect method
K1 Ultrasound-assisted
AB Ultrasound-accelerated hydrolysis is effectively used for the first time in the release of 3-monochloropropane-1,2-diol (3-MCPD) from its fatty esters. Indirect determination of 3-MCPDE fatty acid esters was performed under alkaline and acid conditions using sodium methoxide and sulfuric acid, respectively, prior to GC-MS analysis. Dispersive liquid-liquid microextraction (DLLME) was used to derivatize the free 3-MCPD with n-heptafluorobutyrylimidazole (HFBI). Two asymmetrical screening designs were used to evaluate parameters affecting the methods’ performances: time, temperature, hydrolytic agent volume, and concentration. A comparative study between both methods was performed. Research showed that comparable results are achieved in terms of linearity (r2 > 0.9995), specificity, accuracy, and precision. Determination limits were lower for the alkaline method (67 ng g−1). Twenty samples of four types of edible oil were assessed using both methods: extra virgin olive oil (EVO), refined sunflower oil, refined olive oil, and palm oil. Results obtained here were comparable and similar to those reported in the literature. Alkaline hydrolysis was the recommended approach and should be used in occurrence studies.
PB Elsevier
SN 0889-1575
YR 2024
FD 2024
LK http://hdl.handle.net/10347/33035
UL http://hdl.handle.net/10347/33035
LA eng
NO Journal of Food Composition and Analysis Volume 125, January 2024, 105764
DS Minerva
RD 22 abr 2026