Abstract: The study on storage of Chinese goosebeery show: the rate of sof ten is correlated to the content of multiphenolic compounds at room temperature, the content of multiphenolic compounds decrease sharply due to oxidation when it soften. The investigation on its multiphenolic oxidase indicates that : the best subs trate is 4- methylcatechol, the catalytic mechanism can be described by monosubtrate reaction model; the best condition for catalytic reaction is : pH 7.3 and temperature 60  ℃,which measured by oxygen electrode; Michaelis constant is 2. 20 •10^{- 3}mol L^{- 1}, r_max=2. 306 mg•L^{- 1}•min^{- 1}. The result has directive meaning on prevention of soften of Chinese goosebeery.

Key words: Chinese goosebeery, soften, multiphenolic oxidase, reaction dynamics