Evolution of aroma compounds from orange juice stored in polyethylene teraphthalate (PET)

Berlinet Cécilia, Ducruet Violette, Brillouet Jean-Marc, Reynes Max, Brat Pierre. 2005. Evolution of aroma compounds from orange juice stored in polyethylene teraphthalate (PET). Food Additives and Contaminants, 22 (2) : 185-195.

Résumé : The evolution of aroma compounds from orange juice made from concentrate and stored in glass, standard monolayer polyethylene terephthalate (PET 1), multilayer PET (PET 2) and plasma-treated PET (internal carbon coating) (PET 3) was investigated. Bottles were stored at room temperature (20°C) under artificial light. Volatile compounds in orange juice samples and corresponding packaging materials were analysed at zero time and after 2, 3 and 5 months of storage. After 5 months of storage, from 0.2 to 0.3% of the initial amounts of limonene and [bêta]-myrcene in the orange juice had been absorbed by the plastic packaging materials. Statistical analyses showed that the evolution of aroma compounds was strongly correlated to the duration of storage, but not to the type of packaging material. Indeed, whatever the stored orange juice samples, the same evolutions were observed, with a decrease in aldehydes and ketones, esters, aliphatic alcohols, sesquiterpene and monoterpene alcohols, and an increase in two aliphatic and monoterpene alcohols (i.e. furfural and 4-vinylguaicol). The results suggest that the losses of aroma compounds from the juice could be attributed to the high acidity of the matrix, implying acid-catalysed reactions. Finally, PET packaging materials and their corresponding oxygen permeabilities showed no correlation with the loss of aroma compounds.

Mots-clés Agrovoc : jus d'orange, composé de la flaveur, polyéthylène, composé volatil, absorption, stockage, verre, matériau de conditionnement

Classification Agris : Q04 - Composition des produits alimentaires
Q02 - Traitement et conservation des produits alimentaires

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

• Berlinet Cécilia, CIRAD-FLHOR-UPR Qualité des aliments (FRA)
• Ducruet Violette, ENSIA (FRA)
• Brillouet Jean-Marc, CIRAD-FLHOR-UPR Qualité des aliments (FRA)
• Reynes Max, CIRAD-FLHOR-UPR Qualité des aliments (FRA)
• Brat Pierre, CIRAD-FLHOR-UPR Qualité des aliments (FRA) ORCID: 0000-0003-0429-9575

Source : Cirad - Agritrop (https://agritrop.cirad.fr/529065/)

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