Antioxidant activity of red pigments from the lichens Lethariella sernanderi, L. cashmeriana, and L. sinensis.
A yellow and new dark red pigments were isolated from Lethariella sernanderi, L. cashmeriana, and L. sinensis as antioxidant components. The yellow pigment was identified as canarione (1), and the others were determined to be 1,2-quinone derivatives, rubrocashmeriquinone (2) and 7-chlororubrocashmeriquinone (3), and 7-chlorocanarione (4) by analysis of their spectroscopic data.
Kinoshita
Kaoru
K
Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, Japan.
Togawa
Tadayasu
T
Hiraishi
Akira
A
Nakajima
Yuko
Y
Koyama
Kiyotaka
K
Narui
Takao
T
Wang
Li-Song
LS
Takahashi
Kunio
K
D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D008011:Lichens / Q000737:chemistry*; D010860:Pigments, Biological / Q000302:isolation & purification / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology; D011809:Quinones / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D013057:Spectrum Analysis
D000975:Antioxidants; D010860:Pigments, Biological; D010936:Plant Extracts; D011809:Quinones; C548221:canarione