Table 3. Orthogonal Experiment Results and Range Analysis for FA Extraction Using H₂O₂.

	factor
number	A	B	C	D	yield/%
1	9	18	200	8	23.55
2	9	21	300	10	28.17
3	9	24	400	12	29.82
4	10	18	300	12	24.04
5	10	21	400	8	30.55
6	10	24	200	10	27.19
7	11	18	400	10	28.67
8	11	21	200	12	30.12
9	11	24	300	8	27.03
K1	27.180	25.420	26.953	27.043
K2	27.260	29.613	26.413	28.010
K3	28.607	28.013	29.680	27.993
R	1.427	4.193	3.267	0.967