Porcine pancreatic lipase, p-NPB, morpholinepropanesul phonic acid, quercetin. colchicine and gallic acid were purchased from Sigma Aldrich. The fresh leaves of 28 plants were collected from Plant Genetic Conservation Forest, Ubon Ratchathani Rajabhat University, Ubonnatchathani Province. Thailand. All plant species were identified and authenticated by Mr. Prakorb Boonma, Senior Plant Taxonomist, Ubon Ratch- athani Rajabhat University, Thailand.