Table 1.

Formation of UVA Light Induced Methyl Linoleate Lipid Peroxides by Kava Extract and Kava Lactones

UVA (J/cm2)	Methyl Linoleate	Kava Extract 1 mg/ml	Kava Extract 2 mg/ml	7,8-Dihydro-Kawain 100 μM	Kawain 100 μM	Methysticin 100 μM	7,8-Dihydro- methysticin 100 μM	5,6-Dihydro-Kawain 100 μM	Yangonin 100 μM
0	202 ± 21	200 ± 9	209 ± 18	199 ± 16	243 ± 21	231 ± 25	207 ± 25	203 ± 22	197 ± 24
14	385 ± 40	350 ± 26	426 ± 35	286 ± 16	300 ± 13	310 ± 11	305 ± 32	475 ± 57	483 ± 72
35	690 ± 62	953* ± 89	1056* ± 98	472 ± 50	524 ± 60	400 ± 47	542 ± 70	803 ± 96	673 ± 68
70	869 ± 69	1496* ± 117	3112* ± 325	712 ± 69	825 ± 58	689 ± 48	720 ± 55	1144* ± 132	1202* ± 149

Note: Data are expressed as means ± S.D. n = 3. Means with star are significantly higher than control values, p ≤ 0.05.