I am making microcapsules from gelatin and sodium alginate as shell materials and ammonium phosphate as the core material, after the emulsion formation I do centrifugal to separate the microcapsules from the solution, then I have a suspension include the microcapsules which I must wash to get rid of the nonencapsulated core and getting pure microcapsules. So what is the suitable solvent to wash microcapsules after centrifugal? Is it distilled water, acetone or ethanol? And what is the way for washing? Is it adding the solvent to microcapsules and doing centrifugal or let it to dry in air?
And is these steps correct? : centrifugal- drying the suspension to get microcapsules- wash microcapsules with a solvent- drying again?
Weaam Alali
You get a mixture of direct emulsions of gelatin + sodium alginate and gelatin + sodium alginate + sodium phosphate. Their different formation is regulated by the distribution coefficient of sodium phosphate between gelatin + sodium alginate and water. After centrifugation, you get out of the mixture. Washing will not work. Better to separate at the centrifugation stage. Droplets of gelatin + sodium alginate + sodium phosphate should be heavier.
Yuri Mirgorod
Thanks a lot for your help. It sounds beneficial I will try it.
Hi,
As Prof. Yuri suggests, it is appropriate to separate your emulsion mixture in the centrifugation stage.
Thanks dr yur..i need this method..and i research on other method ..method speed and cheap...I hope helpe me..
Your good resarch case you have more knowledge and reading more...nice you
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