Table 2.

The yield of the Si-Wu Tang (SWT) and its component extracts.

		SWT without one herb				Component herb of SWT
Samples	1	2	3	4	5	Dang Gui	Shao Yao	Chuan Xiong	Shu Di Huang
Yield (%)	40.9	40.6	45.7	44.7	37.5	52.7	25.2	28.0	69.8

1, SWT; 2, SWT without Dang Gui; 3, SWT without Shao Yao; 4, SWT without Chuan Xiong; 5, SWT without Shu Di Huang.