title: Autoxidation of Linoleic Acid Encapsulated with Polysaccharides of Differing Weight Ratio.
abstract: Linoleic acid was encapsulated with pullulan, maltodextrin and gum arabic at various weight ratios of the fatty acid to wall material by the hot-air-drying method. The autoxidative process of the encapsulated linoleic acids was observed at 37°C and at a relative humidity of 75%. The weight ratio strongly affected the autoxidative process, autoxidation being more suppressed with smaller ratios. The autoxidation process of encapsulated linoleic acid leveled off at fraction Y∞ of the unoxidized substrate within 15 days. The Y∞ value strongly depended on both the ratio and the wall material, and steeply decreased near the ratio of 0.75 for every wall material. The dependence of the Y∞ value on the weight ratio was analyzed by the two- and three-dimensional models for percolation theory. The two-dimensional model expressed well the experimentally observed dependence.
authors.affiliation: a Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University.
authors.forename: Y
authors.initials: Y
authors.lastname: Minemoto
authors.affiliation: a Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University.
authors.forename: S
authors.initials: S
authors.lastname: Adachi
authors.affiliation: a Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University.
authors.forename: R
authors.initials: R
authors.lastname: Matsuno
keywords: autoxidation; encapsulation; linoleic acid; percolation theory