Titre :
|
Volatile compounds extracted from polypropylene sheets by hot water : Influence of the temperature of sheets injection
|
Auteurs :
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P. Rebeyrolle-bernard ;
P. Etiévant
|
Type de document :
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article/chapitre/communication
|
Année de publication :
|
1993
|
Format :
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p.1159-1164.
|
Note générale :
|
Bibliogr.
|
Langues:
|
= Anglais
|
Catégories :
|
PRODUIT CONDITIONNEMENT STOCKAGE
QUALITE DES PRODUITS ALIMENTAIRES
|
Mots-clés:
|
PRODUIT ALIMENTAIRE
;
PROPRIETE ORGANOLEPTIQUE
;
QUALITE DES ALIMENTS
;
MATIERE VOLATILE
;
CONSERVATION DES ALIMENTS
;
TEMPERATURE
;
FILM PLASTIQUE
;
ANALYSE STATISTIQUE
|
Résumé :
|
A study was made on PP pellets degraded and not degraded and pointed out the presence and olfactive importance of volatile components extracted from PP pellets by hot water. Plastic packaging materials correspond to a further step of manufacturing : the injection step, and this is often conducted at high temperature. An increasing injection temperature (275 or 300°C) creates increasing quantities of volatiles. This was well correlated with the sensory analysis made on the organic extracts of the sheets and also directly on molded cups.
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Source :
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Journal of applied polymer science, vol.49
|