Effect of storage in glass and polyethylene terephthalate bottles on the sensory characteristics of rosé wine

Abstract

Background and Aims:We studied the ageing of rosé wine in polyethylene terephthalate (PET) bottles compared to that in the reference glass bottle, as the PET bottle needs less energy for manufacture, transport and recycling, which is of benefit for minimising environmental concerns. Our study focused on the evolution of the sensory characteristics of rosé wine. Methods and Results: Sensory characteristics were monitored over a period that corresponded to the duration of marketing of this type of wine. Several types of PET bottlerecycled, not recycled, with or without oxygen scavengerswere compared with the glass bottle. The wines were subjected to sensory analysis using the methodology of conventional descriptive profile by an expert panel. The impact of PET bottles on the colour and sensory characteristics of rosé wine was significant, which was due mainly to oxygen transfer through the PET bottle. The impact was much less for the taste characteristics. Conclusions: Packaging rosé wine in PET bottles has a significant impact on the evolution of rosé wine. Significance of the Study: These results can guide professionals in the choice of packaging according to the wine.

Does bottle color protect red wine from photo‐oxidation?

“…Usually, producers prefer, particularly for premium quality wines, glass bottles for the aging phase. From a technical side, being chemically inert, glass is considered the best option for storage . From the commercial point of view, consumers cannot taste the wine before buying it and cannot consider its intrinsic sensory characteristics; thus, they can only rely on the basis of the packaging, and glass is considered as a quality benchmark …”

Polyethylene terephthalate bottles with excellent oxygen, water vapor barrier and mechanical performances prepared by injection and blow molding

“…[15][16][17][18] After the oxygen scavengers are added into PET, the oxygen molecules passing through the film can be continuously captured and depleted, making the diffusion of oxygen in PET become a long-term unstable state diffusion, thereby effectively promoting the oxygen barrier ability of PET. [19][20][21][22][23][24][25][26][27][28][29] Among all kinds of oxygen scavengers, polymer-based oxygen scavengers, like hydroxyl-terminated polybutadiene (HTPB) and M-xylylene adipamide (MXD6), have been intensively used due to their advantages of large oxygen scavenging capacity, easy molding and processing, and controllable reaction rate. [30][31][32] However, when the oxygen scavengers with catalyst are introduced into PET to achieve an "active" barrier, the oxygen scavengers change the aggregation structure of PET itself on one hand; on the other hand, the PET molecular chains may even degrade in the presence of catalyst, leading to a decrease in its heat resistance, mechanical property, and even the water vapor barrier property (Figure S1).…”

“…A novel “active” oxygen barrier technique has been developed to improve the oxygen barrier property of polymers by introducing oxygen scavengers into the polymer matrix 15–18 . After the oxygen scavengers are added into PET, the oxygen molecules passing through the film can be continuously captured and depleted, making the diffusion of oxygen in PET become a long‐term unstable state diffusion, thereby effectively promoting the oxygen barrier ability of PET 19–29 . Among all kinds of oxygen scavengers, polymer‐based oxygen scavengers, like hydroxyl‐terminated polybutadiene (HTPB) and M‐xylylene adipamide (MXD6), have been intensively used due to their advantages of large oxygen scavenging capacity, easy molding and processing, and controllable reaction rate 30–32 .…”