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Official Journal of the Japan Wood Research Society

Table 5 Antioxidant activities and total phenol contents of compounds 1–8 and trolox

From: Antioxidative catechol lignans/neolignans isolated from defatted kernel of Jatropha curcas

 

DPPH method

IC50 (μM)

Folin–Ciocalteu method (μg/mg)

3,3′-Bisdemethylpinoresinol (1)

16.0

300

Isoamericanol A (2)

19.7

250

Americanol A (3)

18.9

214

9′-O-Methylisoamericanol A (4)

18.3

240

9′-O-Methylamericanol A (5)

29.6

164

Isoamericanin A (6)

24.6

201

Isoprincepin (7)

9.12

301

Princepin (8)

11.7

270

Trolox

21.5

204