W. Stahl et al., CAROTENOID MIXTURES PROTECT MULTILAMELLAR LIPOSOMES AGAINST OXIDATIVEDAMAGE - SYNERGISTIC EFFECTS OF LYCOPENE AND LUTEIN, FEBS letters, 427(2), 1998, pp. 305-308
Antioxidant activity of carotenoids in multilamellar liposomes assayed
by inhibition of formation of thiobarbituric acid-reactive substances
was in the ranking: lycopene > alpha-tocopherol > alpha-carotene > be
ta-cryptoxanthin > zeaxanthin = beta-carotene > lutein, Mixtures of ca
rotenoids mere more effective than the single compounds. This synergis
tic effect was most pronounced when lycopene or lutein was present. Th
e superior protection of mixtures may be related to specific positioni
ng of different carotenoids in membranes. (C) 1998 Federation of Europ
ean Biochemical Societies.