Abstract
Gac oil is a Vietnamese traditional product that contains a high concentration of interestingcarotenoids (beta-carotene and lycopene), which are very useful in cancer treatment and antiagedprotection due to their strong antioxidant activity. However, its hydrophobicity restrains itsuses in food applications which are normally aqueous systems. This problem is possiblyovercome with the help of microencapsulation technology. In this paper, Gac oil wasencapsulated in chitosan beads using dripping method. Gac oil emulsified in chitosan 2 % wasdropped into alkaline solution. The bead’s formation was evaluated through the decrease of beadweight and pH of alkaline solution. Chitosan beads expressed a good protection to Gac oil with acalculated haft-time life of beta-carotene up to 2 years. Encapsulation yield and encapsulationefficiency were also determined.
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