Optimization of Microencapsulated Powder of Algal Oil Rich in DHA

Aims to improve encapsulation and stability of algal oil rich in DHA by optimizing wall materials （maltodextrine:lecithin）,wall materials:algal oil and high-pressure homogenization based on microencapsulation efficiency.The results showed that the suitable conditions for microencapsulation were 20:1 maltodextrin:lecithin,7.5:1.0 wall material:algae oil,and high-pressure homogenization pressure of 850 bar.Under these conditions,the embedding rate was 88.72%.Positive influence of high pressure homogenization on creaming Index of emulsion and quality characteristics of microcapsules powers was observed.Microcapsules with improved quality characteristics in terms of microencapsulation efficiency and oxidation stability was shown especially in the case of microcapsules with high-pressure homogenization.The POV value of microencapsulated algal oil powder with high-pressure homogenization was only a third of the raw algal oil.