Tea-tree oil encapsulated with curdlan microcapsules were prepared by a simple coacervation method. The morphology particle size, size distribution and properties of controlled release were discussed in this study. Curdlan glue is one of the pH value sensitive materials, so can use NaOH and glacial acetic acid control pH value. The results indicated that the better conditions for preparation of microcapsules were 0.5% curdlan solution, 10% concentration of CaCl2 at 800 rpm for 120 mm. The average particle size was 191±22μm at the conditions as mention above. Tea-tree oil encapsulated with curdlan microcapsules can make the tea-tree oil's release speed fast.
