Comparison of acylated plant pigments: light-resistance and radical-scavenging ability.
The acylated plant pigments synthesized by lipase-catalyzed transesterification with aromatic acids were compared in respect of their light-resistance and radical-scavenging ability. With both the flavonols and anthocyanins, their acylated derivatives were more stable against illumination with fluorescent light than their non-acylated glucosides. Their radical-scavenging ability partially decreased or was retained by acylation to the glucoside molecules.
Nakajima
Nobuyoshi
N
Department of Nutritional Science, Okayama Prefectural University, Soja, Okayama 719-1197, Japan. nakajima@fhw.oka-pu.ac.jp
Sugimoto
Manabu
M
Yokoi
Hiroshi
H
Tsuji
Hideaki
H
Ishihara
Kohji
K
D000215:Acylation; D000818:Animals; D016466:CHO Cells; D006224:Cricetinae; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology / Q000528:radiation effects; D016166:Free Radical Scavengers / Q000737:chemistry / Q000494:pharmacology* / Q000528:radiation effects; D008027:Light; D008315:Malondialdehyde / Q000378:metabolism; D010860:Pigments, Biological / Q000737:chemistry / Q000494:pharmacology* / Q000528:radiation effects*; D010944:Plants / Q000737:chemistry*
D005419:Flavonoids; D016166:Free Radical Scavengers; D010860:Pigments, Biological; D008315:Malondialdehyde