The invention relates to
ainsliaea fragrans champ
caffeoylquinic acid extracts and preparation and application thereof. The
ainsliaea fragrans champ
caffeoylquinic acid extracts are prepared by the following steps of: performing refluxing extraction of the
ainsliaea fragrans champ by using
ethanol, filtering, concentrating and removing
ethanol, adjusting the pH value to 1 to 3 by adding
hydrochloric acid, applying macroporous adsorbent resin, water-washing, adding
ethanol for
gradient elution, and collecting eluent, of which the ethanol concentration is 50 to 70 percent; performing condensation and ethanol removal, adjusting the pH value to 1 to 3 by adding
hydrochloric acid, using macroporous adsorbent resin, adding water and ethanol for
gradient elution respectively, and collecting the eluent, of which the ethanol concentration is 40 to 70 percent; mixing the eluent, and
vacuum drying the eluent to obtain the extracts. The UV content of the
ainsliaea fragrans champ
caffeoylquinic acid extracts is over 70 percent, the HPLC content is over 50 percent, and the content of 3-caffeoylquinic acid and the content of 3,5-
dicaffeoylquinic acid are both over 10 percent. The
ainsliaea fragrans champ caffeoylquinic acid extracts have the effects of resisting inflammations,
bacteria, medicament-resistant strains, well improves pathologically changed tissues of rat suffering from
cervicitis, obviously reduces the
uterus index and the number of leukocytes and can be independently prepared into the medicaments for treating
cervicitis or combined with other medicaments to prepare the medicaments for treating
cervicitis.