| 摘要 |
A method for producing microbeads comprising an active component encapsulated within a gelled polymer matrix comprises the steps of providing a suspension of denatured whey protein and an active component, treating the suspension to generate microbeads, and immediately curing the microbeads by acidification. The microbeads are discrete droplets of gelled whey protein having an average diameter in the micron range (for example, from 80 to 500 microns) and which, suitably have a generally spherical shape. The microbeads are capable of surviving passage through the stomach, and delivering the encapsulated active agent in the instestine. Ex-vivo and in-vivo data shows that active agent encapsulated within microbeads retains its functionality upon delivery to the intestine, and that coating of the microcapsules allows targeted delivery of the active agent to the distal part of the intestine. |
