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Actinidiae to Actinidiaceae kiwi species root hard Mao Zhonghua kiwi (Actinidia Chinensis Planch.) , Widely distributed in China , mainly distributed in Northeast China , North China , Northwest and the Yangtze River Basin . Containing ursolic acid ( ursolic acid ) , oleanolic acid ( oleanolic acid ) , succinic acid ( succinic acid ) , daucosterol (daucosterol) as well as arginine, lysine, leucine, alanine, aspartic acid, etc. and elements such as Fe, Cu, Mn, Se - rich . Their sexual tastes bitter , cold , non-toxic , detoxification effect , recent studies found of Actinidia arguta its preparations are better anticancer effects , especially more significant effect on the treatment of cancer of the digestive system . Parkinson 's disease (Parkinson's disease, PD), a brain ischemia caused by neurodegenerative diseases , has become a serious threat to human health , a major killer in the past twenty years , and its prevalence is increasing year by year , has become the only secondary to cardio-cerebral vascular diseases common . Studies have shown that NMDA receptor-mediated excitotoxicity ischemic injury in the brain play a crucial role , and therefore attracted the attention of scientists for the application of NMDA receptor antagonist . Activity tracking experiments showed that the NMDA receptor antagonist of the active ingredient is contained in the ethyl acetate extract Actinidiae therefore isolated the active ingredient and has an important significance for the development of a new drug to treat PD . Applications are of this experiment , the reversed phase silica gel column chromatography , and gel chromatography and other separation means , separated from the Actinidiae seven monomer compound , identified spectral analysis were : 2α, 3β, 19α, 23 - four hydroxy the usu -12 - en-28 - acid - 28- O -β - D - glucopyranoside glucoside ( I ) ,28 - β -glucopyranosyl ester of 2α , 3β, 19α - trihydroxy URS- 12 -en -23 , 28-dioic acid (Ⅱ), Rose acid ( Ⅲ ) , -12 en-28 the β - daucosterol (Ⅳ) , β - sitosterol alcohol ( V ) , 2β , 3β, 23α - trihydroxy- oleanolic fruit - acid (Ⅵ ) , Adyan , Terminalia acid ( VII ) , wherein the compound Ⅰ , Ⅱ , Ⅲ , Ⅵ and Ⅶ were first isolated from the plant to get .
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