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Official Journal of the Japan Wood Research Society

Table 1 IC50 of sugi wood diterpenes and reference compounds in DPPH radical scavenging activity

From: Potential of sugi wood diterpenes as an Alzheimer's disease preventive and therapeutic drug by the β-amyloid toxicity reduction effect

Sugi wood diterpenes

IC50 (mM)

Reference compounds

IC50 (mM)

BHT (positive control)

1.47

Ginkgolide A

n. d

Ferruginol (I)

7.24

Carnosic acid

0.50

6,7-Dehydroferruginol (II)

0.90

Rosmarinic acid

0.03

Other diterpenes

(III, IV, V, VI, VII-i and -ii)

n. d

Morin

0.45