1. Drug Delivery System Excellence Center , Faculty of Pharmaceutical Sciences , Prince of Songkla University Hat Yai , Songkhla , Thailand
2. Natural Product Research Centre of Excellence , Prince of Songkla University , Hat Yai , Songkhla Thailand
3. Faculty of Traditional Thai Medicine , Prince of Songkla University , Hat Yai , Songkhla Thailand
4. Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences , Prince of Songkla University Hat Yai , Songkhla , Thailand