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[Studies on stimulating components of raw Pinellia ternata (Thunb.) (banxia)]
Objective:
To study the stimulating components of raw Pinellia ternata (Banxia).
Methods:
Used the methods of extracting with various organic solvents; x-ray fluorescence spectrometer; scanning electron microanalyzer; oxidation and reduction titrations; and ultraviolet spectrophotometry.
Results:
Experiments showed that calcium oxalate hydrate (C2CaO4 x H2O) was one of the stimulating components of raw Pinellia ternata, and its shape, and contents related to the stimulation of raw Pinellia ternata. After processing, the shape and contents of calcium oxalate changed, decreased respectively, and the stimulation of Pinellia ternata decreased.
Conclusion:
The needle crystal of calcium oxalate is one of the stimulating components in raw Pinellia ternata.