Characteristics of microencapsulated palm-based oil as affected by type of wall material

Microcapsules containing a blend of red palm olein (red POo) and refined, bleached and deodorised palm stearin (RBD POs) in the ratio of 60 :40 were prepared with various wall materials using a spray-drying technique. The total oil content of the microcapsules ranged from 398 to 683.2 g kg(-1). Surface oil and moisture content varied from 38.8 to 158.9 g kg(-1) and 25 to 30 g kg(-1), respectively. Carotene retention after spray-drying and after storage depended on the oil content and types of wall materials, and ranged from 194.65 to 215.28 and 158.8 to 203.1 mg kg(-1), respectively. Microcapsules with the best characteristics were made from wall material containing proteinaceous material.