Original Article
In vitro investigation of xanthine oxidase inhibitory and antioxidant activities of 3,4,5-trihydroxycinnamic acid
Taweesak Dhammaraj 1 * 
, Phoobet Kotseekieo 1 , Tunnathon Chotikarn 1 , Narumol Phosrithong 2 , Wattanakarn Praison 1 , Tossapol Prasomsub 1 , Panupong Lumthong 1 , Warangrat Supaporn 1 , Bunleu Sungthong 1,3 , Chawannuch Mudjupa 1,3 , Pawitra Pulbutr 1,3