Research interest is the way to control melioidosis infection. As it present in soil in Southeast Asia and other tropical zone countries, soil therefore is the most important place to control. Biocontrol of B. pseudomallei in soil by Bacillus amyloliquefaciens secondary metabolites is our main focus. The metabolites can kill B. pseudomallei and other pathogenic Gram-negative bacteria such as A. baumannii. Characterization of the metabolites for some new compounds is also our interest.