The ethnomedical used of rice (Orysa sativa L.) in Thailand and its chemical ingredients were investigated. The method of ethnomedical
study was the in-depth interview of 10 folk doctors from all parts of Thailand and
using documentary research method from Thai Traditional books. Two parts of rice (rice
bran and rice) were extracted following ethnomedical used and was investigated for
chemical components by GC-MS. The ethnomedical results showed that the water extract
from washing white rice exhibited the highest regarded ranking as antiallergy, blood
tonic and antidiarrhea. It exhibited diethyl phthalate, methyl glycol phathalate and
alpha hexyl cinnamaldehyde (HCA) (17.74, 10.32 and 9.72% respectively). The boiled
rice was the second ranking and used to treat inflammation condition. The oleic acid,
palmitic acid and metyl linoleate (44.89, 22.38 and 12.65%) were found in this extract.
The relative of chemical ingredients and ethnomedical used were also regarded. This
results was concluded that almost chemical components related with ethnomedical used.
