Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
Online ISSN : 1882-1006
Print ISSN : 0015-6426
ISSN-L : 0015-6426
Relationship between Pesticide Residues in Fruit Peel and Flesh
Toshihiro NAGAYAMAMaki KOBAYASHIHiroko SHIODAMasako ITOYukihiro TAMURA
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1995 Volume 36 Issue 3 Pages 383-392_1

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Abstract

Pesticide residues in or on fruits and translocation of pesticide from the peel to the flesh were investigated.
Except for water-soluble pesticides, the highest ratio of the concentration in the flesh to that in the peel was found with imidazole and phenoxy pesticides, followed by carbamate pesticides. Organochlorine and organophosphorus pesticides gave low ratios.
The regression equation log (Cf)=-1.22+0.924×log (Cp) (γ=0.892), where Cf is the pesticide concentration in flesh (ppm) and Cp is that in peel (ppm), was obtained for the relation between imazalil residues in lemon peel and flesh. The relation between the concentration ratio of the flesh to the peel and the pesticide solubility in water was given by: Cr=-0.99+2.41×log (Sw) (γ=0.942), where Cr is the concentration ratio (%) in the flesh and the peel and Sw is the pesticide solubility in water (mg/L).

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© The Food Hygienic Society of Japan
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