[Study on prediction model of Angelicae sinensis yield per unit in Min County].

OBJECTIVE: To establish a prediction model of Angelicae sinensis yield per unit in Min County, and the forecasting information can be provided to correlated department and organization. METHODS: With the basis of the Angelicae sinensis yield statistics in Min County from 1995 to 2009 and weather data of development phase of each ten days, polynomial forecasting modeling was used and the stimulation forecasting of Angelicae sinensis yield in Min County was carried out. RESULTS: The results showed that the average accuracy of prediction model was reached to 97.2%, which basically met the demand for yield prediction. CONCLUSION: The prediction model of Angelicae sinensis yield per unit in Min County has good accuracy and relatively correct forecasting information about Angelicae sinensis yield, which provides methodology and important references for dynamic forecasting in the progress of Chinese medicinal materials production.

[Correlation analysis and evaluation of inorganic elements in Angelica sinensis and its correspondence soil from different regions].

OBJECTIVE: Evaluate the relationship between the inorganic elements and the genuineness, invigoration efficacy of this medicinal material by qualitative and quantitative analysis of the inorganic elements in Angelica sinensis and its correspondence soil. METHODS: The contents of 14 kinds of inorganic elements from 40 samples from 4 main habits of Angelica sinensis in China were determined by the method of ICP-AES. RESULTS: In Angelica sinensis and its correspondence soil, significant positive correlations existed between each pair of Ca, Na, Ni. The enrichment coefficients of Mg by Angelica sinensis was a certain peculiarity. The analysis showed that Zn, Cu, Mn, Mg were distincter to Angelica sinensis's geo-authentic than other elements. The results seemly confirmed that the Mingui was considered as geo-authentic crude drugs by traditional knowledge. CONCLUSION: The inorganic elements in Angelica sinensis may be correlated with its geo-authentic certainly. This result can provide scientific basis for understanding of Angelica sinensis's geo-authentic nature and the active material base.

Two new α-pinene derivatives from Angelica sinensis and their anticoagulative activities.

Two new α-pinene derivatives (1-2) were isolated from the aerial parts of Angelica sinensis. Their structures were determined by spectroscopic and chemical methods to be 6ß,9-dihydroxy-(+)-α-pinene (1) and 9-hydroxy-(+)-α-pinene-6ß-O-D-glucoside (2). In the anticoagulative assay, compounds 1 and 2 exhibited weak antithrombin activity and strong antiplatelet aggregation activity in vitro.