title: Oxidation of linoleic acid encapsulated with gum arabic or maltodextrin by spray-drying.
abstract: Linoleic acid was emulsified with gum arabic or maltodextrin at various weight ratios of the acid to the polysaccharide in the presence or absence of a small-molecule emulsifier. The emulsions were spray-dried to produce microcapsules. Emulsions prepared with gum arabic were smaller in droplet size and more stable than those prepared with maltodextrin, and linoleic acid in a gum arabic-based microcapsule was also most resistant to oxidation than that in a maltodextrin-based microcapsule. Although the oil droplet size in the emulsion with maltodextrin decreased and the emulsion stability was improved by addition of a small-molecule emulsifier to linoleic acid, the oxidative stability of the encapsulated linoleic acid was not significantly improved. Encapsulated linoleic acid of small droplet size oxidized more slowly than that of large droplet size.
authors.affiliation: Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Minemoto
authors.forename: K
authors.initials: K
authors.lastname: Hakamata
authors.forename: S
authors.initials: S
authors.lastname: Adachi
authors.forename: R
authors.initials: R
authors.lastname: Matsuno
mesh_terms: D004339:Drug Compounding / Q000379:methods*; D004355:Drug Stability; D004655:Emulsions / Q000737:chemistry; D006170:Gum Arabic; D019787:Linoleic Acid / Q000378:metabolism*; D010084:Oxidation-Reduction; D010316:Particle Size; D011134:Polysaccharides
chemical_list: D004655:Emulsions; D011134:Polysaccharides; C008315:maltodextrin; D006170:Gum Arabic; D019787:Linoleic Acid