Table 4.

The dry weight and antioxidant inhibitory concentration (IC)₅₀ values of 26 leaf extracts.

Sample No.	Botanical Name	Source	Dry Ointment Yield of Extracts (%)	IC50 Value (mg·mL−1)
1	L. gracile	Anhui	5.15 ± 0.11	4.09 ± 0.84
2	L. gracile	Sichuan	6.80 ± 0.09	6.69 ± 0.21
3	L. gracile	Zhejiang	5.51 ± 0.07	4.51 ± 0.03
4	L. gracile	Guangdong	5.74 ± 0.03	2.10 ± 0.06
5	L. gracile	Zhejiang	6.13 ± 0.07	10.17 ± 0.06
6	L. gracile	Zhejiang	8.06 ± 0.10	4.89 ± 0.58
7	L. gracile	Hebei	5.25 ± 0.04	3.06 ± 0.07
8	P. amarus	Hebei	8.93 ± 0.04	1.25 ± 0.12
9	P. amarus	Zhejiang	3.02 ± 0.05	2.11 ± 0.06
10	P. amarus	Guangdong	8.64 ± 0.04	2.18 ± 0.01
11	P. amarus	Sichuan	6.08 ± 0.03	3.09 ± 0.18
12	P. amarus	Sichuan	10.74 ± 1.17	3.25 ± 0.56
13	P. amarus	Jiangsu	6.67 ± 0.18	3.46 ± 0.39
14	P. amarus	Sichuan	8.04 ± 0.64	3.67 ± 0.25
15	P. amarus	Sichuan	8.36 ± 0.05	3.89 ± 0.07
16	P. amarus	Jiangxi	16.20 ± 0.84	4.48 ± 0.08
17	P. amarus	Sichuan	7.15 ± 0.07	5.07 ± 0.58
18	P. nigra	Anhui	15.10 ± 0.19	2.72 ± 0.06
19	P. nigra	Jiangxi	13.04 ± 0.05	2.02 ± 0.08
20	P. nigra	Anhui	12.42 ± 0.04	1.80 ± 0.02
21	P. nigra	Zhejiang	8.90 ± 0.45	1.59 ± 0.09
22	P. nigra	Zhejiang	8.90 ± 0.45	1.65 ± 0.08
23	P. nigra	Zhejiang	8.90 ± 0.45	1.85 ± 0.03
24	P. nigra	Sichuan	8.90 ± 0.45	2.63 ± 0.07
25	P. nigra	Zhejiang	9.43 ± 0.11	1.90 ± 0.14
26	P. nigra	Zhejiang	9.37 ± 0.16	1.65 ± 0.03