A Device for Measuring Oxygen Solubility in Fluids and Oxygen Permeation through Polymers having Fluid Contact |
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| Authors: | G D SADLER P NELSON Y WATABE |
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| Affiliation: | Author Sadler is with the Univ. of Florida, Institute of Food &Agricultural Sciences, Citrus Research &Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850. Author P. Nelson is with Purdue Univ., Smith Hall, West Lafayette, IN 47906. Author Y. Watabe is with Kikko Foods, 4–13, Koamicho, Nihonbashl, Chuoku, Tokyo, Japan. |
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| Abstract: | An apparatus was developed which measured oxygen permeation from a gaseous environment into a liquid medium. Oxygen permeating the package material was detected in the liquid phase by an oxygen electrode. The oxygen permeation of 1 mil oriented polypropylene was 1417 cc/m2 day at 25°C. Slopes of permeation lines were related to the oxygen solubility of various aqueous media. The oxygen solubility of an air-saturated 1.5% NaCl solution was 7.15 ppm O2. Permeability and solubility values were both within 3% of known standards. The solubility method was used to determine the oxygen concentration of air-saturated single-strength tomato juice. At 25°C, the sample contained 7.3 ppm O2. |
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