zeaxanthinn.

Brit.

/ziːəˈzanθɪn/, U.S.

/ˌziəˈzænθən/

Origin: A borrowing from German. Etymon: German Zeaxanthin.

Etymology: < German Zeaxanthin (P. Karrer et al. 1929, in Helvetica Chim. Acta 12 791) < scientific Latin Zea , genus name (see zea n.) + German Xanthin xanthin n.

Biochemistry.

A deep yellow carotenoid pigment present in the retina of the eye and in some plants and microorganisms, used as a food additive and supplement.High levels of zeaxanthin are found in maize (from which it was first isolated) and egg yolk, as well as brightly coloured fruits such as orange and yellow peppers, melons, and oranges. It often occurs naturally with the pigment lutein, of which it is an isomer.Chemical name: β,β-carotene-3,3'-diol; C₄₀H₅₆O₂.

ΘΚΠ

the world > life > biology > substance > pigment > [noun] > plant pigments > yellow

quercitrin1833

anthoxanthin1836

xanthein1857

xanthin1857

phycoxanthin1873

phytochrome1893

zeaxanthin1929

violaxanthin1931

xanthophyll1931

1929 Chem. Abstr. 23 4480 (heading) Zeaxanthin, a new carotinoid pigment in maize.

1934 Science 25 May 488/2 Xanthophyll (lutein) appears to be structurally related to α-carotene and zeaxanthin to β-carotene.

1997 Fitness Nov. 56/4 Research shows that..lutein and zeaxanthin, two carotenoids, may stave off macular degeneration, a common cause of failing eyesight.

2009 Independent 13 Jan. 17/2 Key nutrients to maintain healthy eyes in old age are lutein and zeaxanthin; good sources are kiwi fruit, grapes, spinach and broccoli.

This entry has been updated (OED Third Edition, June 2018; most recently modified version published online March 2022).

单词	zeaxanthin
释义	zeaxanthinn. Brit. /ziːəˈzanθɪn/, U.S. /ˌziəˈzænθən/ Origin: A borrowing from German. Etymon: German Zeaxanthin. Etymology: < German Zeaxanthin (P. Karrer et al. 1929, in Helvetica Chim. Acta 12 791) < scientific Latin Zea , genus name (see zea n.) + German Xanthin xanthin n. Biochemistry. A deep yellow carotenoid pigment present in the retina of the eye and in some plants and microorganisms, used as a food additive and supplement.High levels of zeaxanthin are found in maize (from which it was first isolated) and egg yolk, as well as brightly coloured fruits such as orange and yellow peppers, melons, and oranges. It often occurs naturally with the pigment lutein, of which it is an isomer.Chemical name: β,β-carotene-3,3'-diol; C₄₀H₅₆O₂. ΘΚΠ the world > life > biology > substance > pigment > [noun] > plant pigments > yellow quercitrin1833 anthoxanthin1836 xanthein1857 xanthin1857 phycoxanthin1873 phytochrome1893 zeaxanthin1929 violaxanthin1931 xanthophyll1931 1929 Chem. Abstr. 23 4480 (heading) Zeaxanthin, a new carotinoid pigment in maize. 1934 Science 25 May 488/2 Xanthophyll (lutein) appears to be structurally related to α-carotene and zeaxanthin to β-carotene. 1997 Fitness Nov. 56/4 Research shows that..lutein and zeaxanthin, two carotenoids, may stave off macular degeneration, a common cause of failing eyesight. 2009 Independent 13 Jan. 17/2 Key nutrients to maintain healthy eyes in old age are lutein and zeaxanthin; good sources are kiwi fruit, grapes, spinach and broccoli. This entry has been updated (OED Third Edition, June 2018; most recently modified version published online March 2022). < n.1929
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