Dissolution characteristics is an important index for soluble powder

however

the experimental results are always irreproducible because of the fine powder’s lump-formation or conglutination tendency.In this work

a simple apparatus for determining the dissolution properties of soluble β-carotene powder was designed and set up to resolve these problems.Through monitoring the increase in solution chroma

the dissolution characteristics of two kinds of microencapsulated β-carotene powder in water were investigated

and a parameter for the deliquescent portion was determined as a function of time.Relative dissolution curves were plotted and dissolution kinetics as well as dissolution activation energy were analyzed.Based on the key factors for powder dispersion or dissolution obtained

this method can be used to improve the dissolution abilities.