Abstract: Extraction technology of pectin from Akebia trifoliate koiaz peels was studied by acid in this study. The optimal extracting technics were: 95～100 ℃, pH1.0, 2.0 h and the ratio of peel materials to water 1:25～1:30. With this way, the extraction rate of extracted and unrefined pectin was up to 11.08%. The decoloring technics were: 0.7～0.9 g active carbons mixed into 100 ml pectin extracting solutions for 35 min about 65 ℃; The optimal precipitant technics were: 5 ml 20% FeCl3 (pH 4.0, adjusted with ammonia water) added into 100 ml pectin extracting solution, and precipitated over 3 h. And the desalting technics were: 2 g pectins put into 150 ml desalting solutions (65% ethanol + 4% hydrochloric + 31% distilled water). After 25 min, pectins were carefully washed with 100% ethanol.

Key words: Akebia trifoliate koiaz peel, pectin, extraction technics