The aqueous extract of Qingzhuan tea was extracted by chloroform,ethyl acetate and 1-butanol and the main elements and the effects on pancrelipase(PL)activity of each extractant were analyzed.The results showed that chloroform extractant mainly contented caffeine,ethyl acetate extractant mainly contented polyphenols,1-butanol extractant mainly contented polyphenols, saccharide,theanine,precipitation contented polysaccharides mainly and a small quantity of polyphenols,there were some soluble saccharides and ...