บทคัดย่องานวิจัย

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Residue levels of ethoxyquin, imazalil, and iprodione in pears under cold-storage conditions.

Lopez, M. L.; Riba, M.;

Journal of Agricultural and Food Chemistry Year: 1999 Vol: 47 Issue: 8 Pages: 3228-3236 Ref: 23 ref.

1999

บทคัดย่อ

Residue levels of ethoxyquin, imazalil, and iprodione in pears under cold-storage conditions.

A gas chromatographic method is presented for the simultaneous determination of the antiscald ethoxyquin and the fungicides imazalil and iprodione in peel and pulp of Blanquilla pears. Fruits were cold-stored in commercial chambers in normal atmospheres and in controlled atmospheres with low oxygen content (oxygen and carbon dioxide were held at 2.5% and 1.5%, respectively). The method used gas-liquid chromatography with an alkaline flame ionization detector (detector of N-P, NPD) and allows the detection of these compounds down to minimum levels of 0.08-0.12 mg/kg in fresh fruit. With this system changes in residues in fruits were monitored throughout the period of cold storage. In the surveys carried out the residue levels of these compounds were below the limits allowed by European Union legislation. For the 3 products, residues in pulp were lower and disappeared more quickly than in peel.