Study on preparation of lycium oil microcapsule using flaxseed gum as wall material

The microencapsulation of lycium oil was prepared with the spray drying method using lycium oil as core material and flaxseed gum as wall material.The effect factor of preparing lycium oil microcapsule had been investigated in detail according to microencapsulation efficiency and the ratio of oil content.The result showed that best material compositions for microencapsulation were as follows:wall material/core material (m:m) 2:3.Optimal spray drying processing conditions were determined as follows, the air temperature at the inlet was 180℃, and at the exit was 70℃, the rotating speed of centrifugal atomizer was 24000r/min, and liquid feed rate was 46.21mL/min.The content of microencapsulation efficiency was 93.29% and the ratio of oil content was 45.62%.