Absorption of Citrus Flavor Volatiles by Low Density Polyethylene |
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Authors: | G D SADLER R J BRADDOCK |
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Affiliation: | Authors Sadler and Braddock are with the Univ. of Florida, IFAS, Citrus Research &Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850. |
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Abstract: | The ability of low density polyethylene (LDPE) to absorb citrus flavor compounds was examined. The LDPE sample was mounted on an oxygen electrode. As volatiles were absorbed, oxygen permeation through the polymer increased. Limonene, ethyl butyrate, myrcene, and α-pinene were readily absorbed by LDPE. Octanal, citral, linalool, and α-terpineol were absorbed at much lower levels. Time-course changes in readings were used to calculate diffusion coefficients of volatiles in the polymer. Diffusion coefficients were proportional to the volatile's solubility in the polymer. |
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