Objective: To study preparation technology and establish the quality standard of Jiangtangyin teabag.
Methods: An orthogonal test was adopted in this study. The transter rate of puerarin and the dried extraction rate were used as indices for optimizing the extraction condition. Quality standards of Jiangtangyin teabag were established by TLC and HPLC method.
Results: The best extraction technology was as follows: The drugs were extracted for 3 times, the ratio of water to solid was 10, 8 and 8, respectirely, the extracting time was 1.5 h, 1 h and 1 h respectively. The speckles of TLC method were distinct, accurate and sensitive. The calibration curve of puerarin was linear in the range of 0.168 - 0.84 microg, r2 = 0.9997.
Conclusion: The preparation process is reasonable and feasible. The methods of quality control are scientific and can be used to control the quality of the Teabag.
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