Thermal decomposition of the rubber vulcanization agent, zinc dibenzyldithiocarbamate, and its potential role in nitrosamine formation in hams processed in elastic nettings

The thermal decomposition of zinc dibenzyldithiocarbamate (ZnDBzDTC), a compound used in the formulation of rubber and a possible precursor for N-nitrosodibenzylamine (NDBzA), was studied by a variety of thermal and spectroscopic techniques. At 326 degrees C, the decomposition temperature of the dit...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 1994-11, Vol.42 (11), p.2541-2544
Main Authors: Helmick, John S, Fiddler, Walter
Format: Article
Language:English
Subjects:
ALIMENTOS
CAOUTCHOUC
CARBAMATE
CARBAMATOS
CARNE SALADA
CAUCHO
CONDITIONNEMENT
DEGRADACION
DEGRADATION
EMPAQUETADO
JAMBON
JAMON
NITROSAMINAS
NITROSAMINE
PRODUIT ALIMENTAIRE
PROPIEDADES TERMICAS
PROPRIETE THERMIQUE
TEMPERATURA
TEMPERATURE
VIANDE SALEE
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Summary:The thermal decomposition of zinc dibenzyldithiocarbamate (ZnDBzDTC), a compound used in the formulation of rubber and a possible precursor for N-nitrosodibenzylamine (NDBzA), was studied by a variety of thermal and spectroscopic techniques. At 326 degrees C, the decomposition temperature of the dithiocarbamate, carbon disulfide and dibenzylamine were the principal products formed. Smaller amounts of toluene, benzyl isothiocyanate, N,N,N'-tribenzylthiourea, and benzylbenzylidene were identified. The amount of dibenzylamine (DBzA) formed by the thermal decomposition of ZnDBzDTC may have a limited role in the formation of NDBzA in hams processed in elastic rubber nettings. The thermal conditions used in the smokehouse are significantly lower than the decomposition temperature of purified ZnDBzDTC
ISSN:0021-8561
1520-5118
DOI:10.1021/jf00047a031