Abstract
Linoleic acid was encapsulated with gum arabic, pullulan or maltodextrin at various weight ratios of the acid to wall materials by freeze-drying, and its autoxidation and solvent-extraction processes were measured. Linoleic acid encapsulated with pullulan or maltodextrin at any ratio was highly resistant to autoxidation. When gum arabic was used as the wall material, Iinoleic acid encapsulated at smaller ratios was more easily oxidized. On the other hand, linoleic acid was almost totally extracted with chloroform within scores of minutes of soaking time without any dependence on the wall material or the weight ratio.
