[1] Prince Songkla Univ, Fac Sci, Dept Chem, Hat Yai 90112, Songkhla, Thailand
[2] Prince Songkla Univ, Fac Sci, Nat Prod Ctr Excellence, Hat Yai 90112, Songkhla, Thailand
[3] Prince Songkla Univ, Fac Sci, Dept Microbiol, Hat Yai 90112, Songkhla, Thailand
[4] Griffith Univ, Sch Environm, Nathan, Qld Q4222, Australia