DETECTION AND DETERMINATION OF PESTICIDE AND HEAVY METAL RESIDUES IN PROCESSED AND CANNED FOOD

SOAD MOHAMED ABOUELTASAHIEL


Abstract


In plant materials, the pesticide residues may be dried on the surface of the raw products, adsorbed or bounded to waxy materials in the skin of vegetables and fruits and/ or translocated to the inner tissues. The consumer also increasingly prefers foods packing in enameled cans or glass jars, especially vegetables and fruits. They may be prepared quickly and simply for meals using commercial or home processing procedures such as washing, peeling, blanching, cooking, drying (oven, sun), preservation and juicing are common post harvest processes. Some of them help in removing dirt and extraneous material; others help to make them potable or preserved for later use. It has long been suggested to decontaminate pesticides in fruits, vegetable and agriculture product by restoring to various post harvest processes. However, such processing caused problem for consumption health. The presence of such pesticide chemicals has to be carefully followed and controlled. As usual processing steps could lead to destruction, chemical changing, dissolution or even concentration of such pesticides. The Aim of Work: The present investigation aimed to throw light on the persistence of tested pesticides namely: methomyl, thiophanate-methyl and fenpropathrin on strawberry and grape under field condition. Also, the effect of processing on the studied pesticides residues was studied. In addition, the effect of canning and storage time on the concentration of heavy metals in foodstuff was also, investigated. The studied pesticides residues were measured by gas liquid chromatography and high performance liquid chromatography and heavy metals by atomic absorption spectrometry and atomic absorption spectrometry connected with graphite furnace.


Other data

Other Titles الكشف عن تقدير الأثار المتبقية من المبيدات والمعادن الثقيلة فى الأغذية المصنعة والمحفوظة
Issue Date 2000
URI http://research.asu.edu.eg/handle/12345678/2547


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