Chanthongdee S., Sittikijyothin W., 2017, Preparation of Hard Capsule Shell from Seed Gum of Cassia fistula, Chemical Engineering Transactions, 56, 1819-1824.
In this study, seed gum from Cassia fistula was used as raw material for preparation of hard capsules. The appropriate condition for hard capsule forming was investigated. The results from viscosity consideration suggest that the formulation for hard capsule forming is a 3 %wt gum solution and 2 %wt plasticiser. The characterisation of hard seed gum capsule was evaluated using standardised tests of Thai Industrial Standard (TIS. 913-2545) and compared to the characterisation of hard gelatin capsule. The water resistance and drug release of hard capsules were observed. The results present that seed gum capsule had more water resistance and drug release for seed gum capsule also took longer than that gelatin.
