Abstract: The microencapsulation of DHA single cell oil from microalgae by modified starch and its oxidative stability wereboth studied in this paper. Results showed that modified starch was a good encapsulating material which could microencapsulateDHASCO effectively, especially the seepage of surface oil and extractable solvent were the least. The oil envelopment in themicroencapsule was the best and DHA reduced only by 3.26% after storage at room temperature for six months with the Nationalmodified starch used as microencapsulation material. However, the oxidative stability of the microencapsulation by modified starchwas inferior to that by arabic gum.

Key words: modified starch, microencapsulation, microalgae, single cell oil, DHA