Evidence-Based Complementary and Alternative Medicine

Research Article

Extraction Efficiency of Shosaikoto (Xiaochaihu Tang) and Investigation of the Major Constituents in the Residual Crude Drugs

Table 1

Comparison of first and second decoctions in extract, tannin, and four principal compounds.
 1st decoction2nd decoction(2nd/1st decoction) %
Decoction (mL) 2 7 6 . 6 ± 4 . 4 2 2 9 . 6 ± 3 . 4 —
Extract (g) 6 . 3 1 ± 0 . 1 1 1 . 6 2 ± 0 . 1 9 25.7
Tannin (mg)* 1 1 2 . 8 ± 1 1 . 5 3 9 . 8 ± 4 . 0 35.3
Saikosaponin b2　(mg) 2 . 6 7 ± 0 . 3 6 2 . 0 9 ± 0 . 1 1 78.3
Glycyrrhizin (mg) 3 1 . 0 4 ± 4 . 8 3 1 5 . 2 7 ± 3 . 3 5 49.2
Baicalin (mg) 2 9 6 . 1 ± 1 3 . 8 9 1 . 8 ± 1 3 . 4 31.0
Saikosaponin d (mg) 2 . 8 9 ± 0 . 7 8 1 . 7 0 ± 0 . 2 1 58.8