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. 2017 Nov 12;6(1):54-61.
doi: 10.1002/fsn3.526. eCollection 2018 Jan.

Binding of volatile aroma compounds to can linings with different polymeric characteristics

Xiaorong You  1 , Sean F O'Keefe  2
Affiliations

Binding of volatile aroma compounds to can linings with different polymeric characteristics

Xiaorong You et al. Food Sci Nutr. .

Abstract

Flavor compounds have been shown to interact with packaging materials either by scalping, the movement of flavorings from the food product to the package, or by flavor release, movement of flavorings from the package to the food. Work has elucidated the parameters important for the scalping of flavor compounds to polyolefin packaging materials, but very little work has been conducted examining the scalping of flavor compounds by can lining materials. Can linings composed of three different polymers, polyolefin, acrylic, epoxy, were studied for binding of volatile flavor compounds (octanal, nonanal, decanal, eugenol, d-limonene) at room temperature over a 2-week period. Solid phase microextraction (SPME) was used with gas chromatography mass spectrometry to identify and quantify volatile compounds. Flavor compounds were studied at concentrations around 4-1,000 ppb. Fourier transform infrared spectroscopy was used to verify can lining polymer chemistry. Almost complete binding of all five of the volatile compounds studied was observed over 9-14 days at room temperature for each of the can lining chemistries. The number of time data points limited our ability to determine the order and rate constants of binding. This model system appears to be a valuable for investigating flavor binding of polymeric can lining materials.

Keywords: SPME; can lining; flavor scalping; polymers.

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Figures

Figure 1
Figure 1
Reaction vessel used for aroma binding experiments
Figure 2
Figure 2
FTIR reflectance spectra of can linings used in this work
Figure 3
Figure 3
Standard curve for d‐limonene using described model system
Figure 4
Figure 4
Headspace concentration of d‐limonene in model systems equilibrated with different can liners at room temperature
Figure 5
Figure 5
Headspace concentration of octanal in model systems equilibrated with different can liners at room temperature
Figure 6
Figure 6
Headspace concentration of nonanal in model systems equilibrated with different can liners at room temperature
Figure 7
Figure 7
Headspace concentration of decanal in model systems equilibrated with different can liners at room temperature
Figure 8
Figure 8
Headspace concentration of eugenol in model systems equilibrated with different can liners at room temperature
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