The present invention takes off a kind of Polyphenols constituent, main ingredient includes 1,7- bis- (4- hydroxy phenyl) -1,4,6- heptantriene -3- ketone (1,7-bis (4-hydroxyphenyl)-Isosorbide-5-Nitrae, 6-heptatrien-3-one) and Bisdemethoxycurcumin (bisdemethoxycurcumin), it can be used as the effective ingredient of anti-inflammatory, anti-oxidant medical object. Still further, the Polyphenols constituent that the present invention takes off is extracted by Nan Jiangnei and is obtained, firstly, taking the subterranean stem of southern ginger, and by processing Hou, it is set in one organic solvent of what； Organic solvent Hou is removed again, and water Hou is added and obtains a mixture； And the mixture is sequentially extracted at least one organic solvent and obtains the Polyphenols constituent by Hou.本發明所揭一種多酚類組成物，主要成份包含有1,7-二(4-羥基苯基)-1,4,6-庚三烯-3-酮(1,7-bis(4-hydroxyphenyl)-1,4,6-heptatrien-3-one)以及二去甲氧基薑黃素(bisdemethoxycurcumin)，可作為抗發炎、抗氧化醫藥物之有效成份。更進一步而言，本發明所揭之多酚類組成物係由南薑內萃取而得，首先，取南薑之地下莖，並經過處理後，將之置於一有機溶劑中；再移除該有機溶劑後，並加入水後得到一混合物；而後將該混合物依序以至少一種有機溶劑加以萃取而得到該多酚類組成物。
