Characterization and Singlet Oxygen Quenching Activity of (3R)-3-Hydroxy-4-Ketotorulene and (3R)-3-Hydroxy-4-Keto-γ- Carotene from the Yeast Xanthophyllomyces dendrorhrous

Characterization and Singlet Oxygen Quenching Activity of (3R)-3-Hydroxy-4-Ketotorulene and (3R)-3-Hydroxy-4-Keto-γ- Carotene from the Yeast Xanthophyllomyces dendrorhrous

Structures of (3R)-3-hydroxy-4-ketotorulene (1) and (3R)-3-hydroxy-4-keto-γ-carotene (2) isolated from the yeast Xanthophyllomyces dendrorhrous were fully characterized by FAB MS, 1H NMR, 13C NMR and CD spectroscopic data. Both 1 and 2 showed potent singlet oxygen (1O2) quenching activity as that of...

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Veröffentlicht in:Journal of Oleo Science 2012, Vol.61(7), pp.401-406
Hauptverfasser: Takashi Maoka, Tetsuji Etoh, Ayako Osawa, Kazutoshi Shindo
Format: Artikel
Sprache:jpn
Schlagworte:
(3R)-3-hydroxy-4-keto-γ-carotene
(3R)-3-hydroxy-4-ketotorulene
singlet oxygen quenching activity
stereochemistry
Xanthophyllomyces dendrorhrous
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Zusammenfassung:Structures of (3R)-3-hydroxy-4-ketotorulene (1) and (3R)-3-hydroxy-4-keto-γ-carotene (2) isolated from the yeast Xanthophyllomyces dendrorhrous were fully characterized by FAB MS, 1H NMR, 13C NMR and CD spectroscopic data. Both 1 and 2 showed potent singlet oxygen (1O2) quenching activity as that of astaxanthin and lycopene, which were well known strong 1O2 quencher.
ISSN:1345-8957
1347-3352
DOI:10.5650/jos.61.401