Pesticide analysis in baby food by solid-phase microextraction and gas chromatography-mass spectrometry

Abstract

Strobilurins are new class of fungicides included in the Quinone outside Inhibitors (QoI) group. They have a novel mode of action, and are very safe from an environmental point of view. The group includes synthetic compounds such as azoxystrobin, metominostrobin, kresoxim-methyl, trifloxystrobin and, more recently, picoxystrobin, dimoxystrobin and pyraclostrobin, which act in a similar way to the natural strobilurin A, produced by the strobilurus tenacellus fungus. The effectiveness of strobilurins lies in their inhibition of the mitochondrial respiration of the fungus [1]. Triazole fungicides are well known as curative fungicides, thanks to their excellent protective and a relatively low resistance risk compared with other fungicides. The triazoles are very specific in their mode of action – they inhibit the biosynthesis of sterol, a critical component for the integrity of fungal cell membranes. Because their site of action is very specific, there are resistance concerns [2]. [...]