Study on the Factors Influencing the Extraction of Chenodeoxycholic Acid from Duck Bile Paste by Calcium Salt Method

Table 1

Factors and levels for orthogonal test.

Level	A	B	C	D
	Methanol (mL)	H2O2 (mL)	CaCl2 (mL)	Glacial acetic acid (mL)
1	750	25	300	400
2	1000	50	400	500
3	1250	100	500	600