Abstract
The determination of pesticides in food products is an essential issue to guarantee food safety and minimize health risks of consumers. In this study, 30 pineapple juice samples were collected randomly from 30 seller through the city of Abidjan (Côte d’Ivoire) and analyzed for the determination of pesticide residues. The aim of the work was to quantify 30 commonly used pesticides (Metolachlor, Chlorpropham, Parathion-methyl, Chlorfenvinphos, Vinclozolin, Parathion-ethyl, Fenuron, Aldicarb, Metoxuron, Monuron, Methabenzthiazuron, Chlortoluron, Monolinuron, Isoproturon, Diuron, Metobromuron, Metazachlor, Buturon, Linuron, Prometryn, Terbutryn, Desisopropylatrazine, Desethylatrazine, Simazine, Cyanazine, Atrazine, Propazine, Terbuthylazine, Metamitron, Crimidine and Metolachlor) in real samples of pineapple juice. The method used for the determination of these analytes in the complex matrices was high-performance liquid chromatography with UV/Visible detector. Results obtained indicate that 30% of the investigated pineapple juices samples are free of pesticides residues or have a level below Limit Of Detection......
Highlights
Oximes and their esters could be found in many bioactive molecules
A number of unsymmetrical bridged terphthaloyl acetophenone oxime esters has been synthesized throughout an esterification reaction between four different acetophenone oximes and the terphthaloyl chloride in a molar ratio of (2:1) under mild basic conditions
The acetophenone oxime and 4-aminoacetophenone oxime or 4-hydroxyacetophenone oxime were reacted with the terphthaloyl chloride in the ratio of (2:1 mole/mole) under mild basic conditions at 0 °C to room temperature
Summary
Oxime derivatives possess a wide variety of activities, such as antibacterial, antifungal, anti-inflammatory, antioxidant and cytotoxic activities [1]. They have been utilized in the synthesis of photosensitive materials as important precursors and building blocks [2]. Oxime esters have importantly been considered as useful building units for the synthesis of nitrogen containing compounds such as amines, amides, nitriles, aliphatic heterocycles and aromatic heterocyclic compounds like pyrroles, pyridines, quinolones, etc [1, 2]. Because of the nucleophilic character of oximes, they have widely been used for the synthesis of various nitrogen containing compounds such as amides, nitrones and nitriles [1]. The synthesis of a number of unsymmetrical bridged terphthaloyl acetophenone oxime esters is described
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