From extraction, Millingtonia hortensishas highest percentage of extraction and condensed tannin which differs from Spathodea campanulata and Pyrostegia venusta that have hydrolysis tannin. But the result of inhibition shows Spathodea campanulata is the best oral bacteria inhibitor that’s can inhibited the bacteria by clear zone 1.167 in concentration 1 : 2
From this research, we would like to make a goods of Spathodea campanulata in concentration 1 : 2 such as mouthwash and toothpaste