Preparation and Properties Analysis of Slow-Release Microcapsules Containing Patchouli Oil
The microcapsules containing patchouli oil were prepared using a complex coacervation with chitosan and arabic gum as wall material,patchouli oil as the core material.The different factors influence on the microcapsule properties were investigated by scanning electron microscope,laser particle size analyzer,infrared spectrum and UV spectra.The best conditions for preparing patchouli oil microcapsules were confirmed as follows:the concentration of chitosan with low viscosity 0.5%,arabic gum 4%,and the ratio of wall material to core material was 2∶ 1.The pH value of the complex coacervation reaction was 4.5,and stirring speed was 800 r/min.The microcapsules were analyzed by Infrared spectral to confirm the patchouli oil had been successfully embedded in the microcapsules.The drug loading and encapsulation efficiency for patchouli was 20.7% and 67.2%,respectively.
Patchouli oil Complex coacervation Microcapsule
Guangtao Han Ziming Yang Zheng Peng Guang Wang Min Zhou Yuxin Pang Puwang Li
Agricultural Product Processing Research Institute, China Tropical Academy of Agricultural Sciences, Agricultural Product Processing Research Institute, China Tropical Academy of Agricultural Sciences, Tropical Crops Genetic Resources Institute, China Tropical Academy of Agricultural Sciences,Danzhou,
国际会议
厦门
英文
935-938
2012-12-28（万方平台首次上网日期，不代表论文的发表时间）