Application of platycodon grandiflorum plant extract to treating inflammatory bowel disease

The invention discloses an application of a platycodon (platycodon spp.) grandiflorum plant extract to preparing a medicine for treating the inflammatory bowel disease. The extract suitable for preparing a medicine for treating the inflammatory bowel disease is obtained by extracting the extract from a fresh and/or dry root part of a platycodon plant, and extracting by using solvents like a supercritical fluid, water, 10-95% (volume percent) of ethyl alcohol, acetone, ethyl acetate or normal hexane. 在此揭示桔梗属(Platycodon spp.)植物萃出物的用途，其用于制备种可供治疗发炎性肠道疾病的药物。所述萃出物萃取自桔梗属植物的新鲜及/或干燥根部，并使用如超临界流体、水、10-95％(体积％)乙醇、丙酮、乙酸乙酯或正己烷等溶剂来进行萃取，以得到适用于制备发炎性肠道疾病药物的萃出物。