antheraxanthin

antheraxanthin

[¦an·thər‚aks¦an·thən]
(biochemistry)
A neutral yellow plant pigment unique to the Euglenophyta.
References in periodicals archive ?
Merely three cetrarioid lichens have been investigated for their carotenoid composition: [beta]-carotene 32, zeaxanthin 34, lutein 35, mutatoxanthin 39, [beta]-cryptoxanthin 41, lutein epoxide 42, antheraxanthin 43 and 3'-epilutein 44 in Cetrariella delisei; [alpha]-carotene 31, [beta]-carotene 32, [epsilon]-carotene 33, zeaxanthin 34, lutein 35, violaxanthin 36, lutein epoxide 42 and antheraxanthin 43 in Flavocetraria nivalis, and [beta]-carotene 32, zeaxanthin 34, lutein 35, astaxanthin 37, canthaxanthin 38, luteoxanthin 40, [beta]-cryptoxanthin 41 and lutein epoxide 42 in Cetraria islandica.
Sl/No Compounds Examples Sources [beta]-carotene Fucoxanthin Chondrus crispu s Antheraxanthin, Mastocarpus stellatus 1 Carotenoids Lutein, Brown algae Violaxanthin, Red algae Xanthophylls Zeaxanthin Catechin, Epicatechin Gallate Taonia atomaria Fl avonoid s Cystoseira species 2 Phenols Ph lorotannins Palmaria palmata Stypodiol Sargassum pallidum Isoepitaondiol Fucus vesicu losus Taond iol Terpe noids 3 Pigments Phycoerythrin Red algae Phycocyanin Chondrus crispu s 4 Vitamins Ascorbate Mastocarpus stellatus Vitamin A Sargassumsp.
Several carotenoids are involved, including neoxanthin, antheraxanthin, violaxanthin, lutein and zeaxanthin.
7) The photoquenching abilities of violaxanthin, zeaxanthin and antheraxanthin make them strong candidates for additives to pho-toprotective topical applications.
In this cycle, two carotenoids, zeaxanthin and antheraxanthin, are epoxidized to a third, violaxanthin, and in so doing light energy absorbed in excess is harmlessly dissipated (Demmig-Adams & Adams, 1992).
After dark, zeaxanthin and antheraxanthin revert to violaxanthin.
Both species had a similar total xanthophyll cycle pool size (V+A+Z, violaxanthin + antheraxanthin + zeaxanthin), which generally increased with time in the high-light treatment [ILLUSTRATION FOR FIGURE 3 OMITTED].
Several carotenoids were involved, including neoxanthin, antheraxanthin, violaxanthin, lutein and zeaxanthin.