| 摘要 |
1535470 Encapsulation POLAKS FRUTAL WORKS Inc 11 May 1977 [12 May 1976] 19783/77 Heading B8C Water soluble materials such as flavours and perfumes are encapsulated in water soluble wallforming materials by initially emulsifying them in a water-insoluble oil using a specified surfactant-polyoxyethylene (20) sorbitan tristearate. The emulsion is then suspended in an aqueous solution of a wall former such as starch and spray dried whereby the water soluble material is encapsulated. |
