The Study on Microencapsulation of Vanilla Extract

Abstract

Natural vanilla extract microencapsulation was done by spray drying method, using maltodextrin DElO and modified cassava starch (Flomax 8) as coating material. Selection ofcoating material ratio ofmaltodextrin DEJO: Flomax8 (1:0, 1:1, 0: I, 1:2, 2: I) was done as pre-treatment, resulted in an optimum ratio of2: I. Three different treatments were applied: type of coating material (maltodextrin DEJO, and maltodextrin DElO: Flomax8 = 2:1), coaling material concentration (10, 20, and 30%) and vanilla extract -coating material ratio (3:2, 2: 1 and 3: 1). Type ofcoating material, coating concentration and ratio between vanilla extract and coating material gave a significant difference to the yield, vanillin content and vanillin recovery. Vanillin extract coated by maltodextrin DElO:Flomax8 2: I gave yield, vanillin content and vanillin recovery higher than only maltodextrin. The highest vanillin content and vanillin recovery obtained from 30% concentration of coating material. The higher ratio ofvanillin extract to coaling material gave the higher vanillin content, but recovery was lower. The type of coating material gave a significant effect to the solubility of vanilla powder. The concentration of coating material and ratio between extract vanilla and coating material did not affect the solubility. The type ofcoating materials, coating material concentration and ratio between vanilla extract and coating material did not affect water activity ofthe obtained vanilla powder.