Photo-oxidation of chlorophyll A in digalactosyldiacylglycerol liposomes containing xanthophyll pigments: indication of a special photoprotective ability of zeaxanthin

• Autorzy: Sielewiesiuk J. , Matula M. , Gruszecki W.I.
• Języki publikacji: EN

Abstrakty

EN

Photoprotective efficiency of lutein, zeaxanthin and violaxanthin in liposomes made of digalactosyldiacylglycerol (DGDG) has been investigated. It was found that zeaxanthin is about ten times more effective than the two other xanthophylls in inhibition of chlorophyll a photo-oxidation. Kinetics of chlorophyll photobleaching suggests that exceptional photoprotective efficacy of zeaxanthin in membranes consists in effective scavenging of free radicals. High photoprotective efficiency of zeaxanthin in membranes correlates with its physiological function.

Słowa kluczowe

EN

violaxanthin; zeaxanthin; carotenoid; chlorophyll; physiological function; photosynthesis; liposome; xanthophyll pigment; lipid membrane; chlorophyll a; digalactosyldiacylglycerol; xanthophyll cycle; lutein

• Wydawca: -
• Czasopismo: Cellular and Molecular Biology Letters
• Rocznik: 1997
• Tom: 02
• Numer: 1
• Opis fizyczny: p.59-68,fig.

Twórcy

autor

Sielewiesiuk J.

• Maria Curie-Sklodowska University, 20-031 Lublin, Poland

autor

Matula M.

autor

Gruszecki W.I.

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