[Comparative Study on Efficiency of Extraction of Boiling Powder and Traditional Herbal PiecesⅠ. Part of Root and Rhizome,Flower,Leaf and Whole Plant Medicinal Materials].

Objective: To compare the efficiency of extraction of boiling powder and traditional herbal pieces of root and rhizome, flower, leaf and whole plant medicinal materials for providing a reference for the study and clinical application of boiling powder.

Methods: 19 kinds of root and rhizome herbs, the 4 kinds of flower medicinal materials, the 2 kinds of leaf medicinal materials and the 2 kinds of whole plant medicinal materials were chosen as the researh object and were crushed into boiling powder. The contents of the active ingredients and dry extract rate in the water decoction were set as the index to compare the extraction efficiency of boiling powder and traditional herbal pieces.

Results: Boiling powder was added ten times of water, decocted one time, decoction time was only ten min, the dry extract rate and the concentration of ingredients in the decoction of boiling powder were not less than those in the traditional decoction of herbal pieces( ten times of water, decoction time was 50 min),this difference was mainly caused by the different of texture density and size of the medicinal materials.

Conclusion: The boiling powder can not only save time and facilitate the patient, but also save a lot of medicinal materials from the perspective of chemical medicine, which is beneficial to the sustainable development of medicinal material resources.