Re-evaluation for quality standard of Compound Lumbrical Capsule based on enzyme activity / 中草药

ABSTRACT

Objective: The quality standard of Compound Lumbrical Capsule (CLC) was re-evaluated using blood and anti-coagulation intensity as indexes. Methods: Fibrin plate method was used to determine the strength of promoting blood circulation and anti-coagulation for CLC by selecting urokinase and thrombin as reference substances. Results: The results of urokinase concentration and transparent circle area showed a good linear relationship in 200-1 000 U/mL, r = 0.999; The results of thrombin concentration and precipitation circle area showed a good linear relationship in 8-40 U/mL, r = 0.997. The blood anti-coagulant activity of compound earthworm capsule of temporary regulations were not less than 12 840 U/g and 113 822 U/g. Conclusion: The method is rapid, simple, and accurate for determining the activity of promoting blood circulation and anticoagulation for compound lumbrical capsule, thus it can be used for the quality control of CLC.