Sulfuryl fluoride residues of fumigated foods protected by polyethylene film

Gas chromatographic headspace analysis was used to determine the postfumigation levels of residual sulfuryl fluoride (SF) in eight food items sealed in polyethylene plastic film or exposed directly to SF. Two layers of 2-mil polyethylene film reduced residual SF levels in food more than 96%. A singl...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 1988-07, Vol.36 (4), p.853-855
Main Authors: Osbrink, Weste L. A, Scheffrahn, Rudolf H, Hsu, Ruei Ching, Su, Nan Yao
Format: Article
Language:English
Subjects:
ALIMENTOS
ALMACENAMIENTO
Biological and medical sciences
Food industries
Food toxicology
FOODS
FUMIGACION
FUMIGANT
FUMIGANTES
FUMIGANTS
FUMIGATION
Fundamental and applied biological sciences. Psychology
MATIERE PLASTIQUE
PLASTICOS
PLASTICS
PRODUIT ALIMENTAIRE
RESIDU
RESIDUES
RESIDUOS
STOCKAGE
STORAGE
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Summary:Gas chromatographic headspace analysis was used to determine the postfumigation levels of residual sulfuryl fluoride (SF) in eight food items sealed in polyethylene plastic film or exposed directly to SF. Two layers of 2-mil polyethylene film reduced residual SF levels in food more than 96%. A single 4-mil layer reduced SF levels by at least 79% at 2 h postfumigation. Vegetable oil desorbed the greatest quantity of residual SF of all commodities tested. Half-loss times and partitioning of SF between the headspace and food depended on the nature of the food matrix. Less SF penetrated the inner, doubled, 2-mil polyethylene bags than single 4-mil bags.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf00082a047