Quantification of aroma vapours sorbed in polyethene films using supercritical carbon dioxide |
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Authors: | Fredrik Johansson,Anders Leufv n,Mats Eskilson |
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Affiliation: | Fredrik Johansson,Anders Leufvén,Mats Eskilson |
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Abstract: | Extraction with supercritical carbon dioxide was used to quantity the amounts of seven different aroma vapours sorbed in polyethene films. The method was found to completely extract all aroma compounds from the films. The solution of aroma compounds in the polymer films decreased with increasing polymer density. Monoterpenes were always completely sorbed in the films, whereas aldehydes and ketones had a much lower affinity for the films. The sulphur-containing compound, thiophene, was difficult to analyse due to its adsorption on metal surfaces. |
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Keywords: | aroma vapours supercritical carbon dioxide SFE. solubility polyethene. LLDPE LLD/HPLDPE HPLDPE HDPE monoterpene aldehyde ketone polymer film |
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