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Changes in nutritional and sensory properties of orange juice packed in PET bottles: an experimental and modelling approach.

Identifieur interne : 000F30 ( Main/Exploration ); précédent : 000F29; suivant : 000F31

Changes in nutritional and sensory properties of orange juice packed in PET bottles: an experimental and modelling approach.

Auteurs : Celine Bacigalupi [France] ; Marie Hélène Lemaistre ; Naima Boutroy ; Christophe Bunel ; Stéphane Peyron ; Valérie Guillard ; Pascale Chalier

Source :

RBID : pubmed:23993555

English descriptors

Abstract

Sensitivity to oxidation of an orange juice was investigated through packaging in standard PET or active PET with oxygen scavenger bottles. The evolution of dissolved oxygen was found to be similar in all bottles, whereas ascorbic acid degradation was related to the oxygen transfer with higher losses in standard PET (53%) against active PET (31%). Moreover, when juice was exposed to high intensity light, a fold faster degradation of ascorbic acid was observed compared to total darkness. Depending also on the light intensity and regardless of the package permeability, changes in the aromatic profile of the juice were observed due to the degradation of limonene and the formation of α-terpineol, an off-flavour. A mechanistic model was developed to predict the shelf life of orange juice. This model, coupling O2 transfer and ascorbic acid oxidation reaction in the bottled juice, confirmed that oxygen permeation through packaging material could not be neglected.

DOI: 10.1016/j.foodchem.2013.06.076
PubMed: 23993555


Affiliations:


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Le document en format XML

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