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单词 zeaxanthin
释义

Definition of zeaxanthin in English:

zeaxanthin

nounziːəˈzanθɪnˌzēəˈzanTHin
Biochemistry
  • A deep yellow carotenoid pigment present in the retina of the eye and in some plants, used as a food additive and supplement.

    〔生化〕玉米黄质(一种深黄色类胡萝卜色素,存在于眼视网膜和某些植物中,用作食品添加剂和增补剂)

    Example sentencesExamples
    • Obviously, in their case, zeaxanthin cannot be an important factor in energy dissipation.
    • The blue light response of guard cells is mediated by the chloroplastic carotenoid, zeaxanthin.
    • The first major breakthrough in understanding the molecular genetics of ABA biosynthesis involved the cloning of zeaxanthin epoxidase.
    • The recombinant protein was assayed for cleavage activity towards zeaxanthin.
    • During this interaction, energy is dissipated via a charge exchange mechanism in which the zeaxanthin gives up an electron to the chlorophyll.

Origin

1920s: via German from modern Latin zea 'maize' + xanthin, a yellow colouring in some plants.

Definition of zeaxanthin in US English:

zeaxanthin

nounˌzēəˈzanTHin
Biochemistry
  • A carotenoid present in the retina of the eye and in many plants, used as a food additive and supplement.

    〔生化〕玉米黄质(一种深黄色类胡萝卜色素,存在于眼视网膜和某些植物中,用作食品添加剂和增补剂)

    Example sentencesExamples
    • The blue light response of guard cells is mediated by the chloroplastic carotenoid, zeaxanthin.
    • The recombinant protein was assayed for cleavage activity towards zeaxanthin.
    • The first major breakthrough in understanding the molecular genetics of ABA biosynthesis involved the cloning of zeaxanthin epoxidase.
    • During this interaction, energy is dissipated via a charge exchange mechanism in which the zeaxanthin gives up an electron to the chlorophyll.
    • Obviously, in their case, zeaxanthin cannot be an important factor in energy dissipation.

Origin

1920s: via German from modern Latin zea ‘maize’ + xanthin, a yellow coloring in some plants.

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更新时间:2024/12/27 2:16:59