The yellow, red, orange, and brown birds of the world assume their hues because of a pigment embedded in the keratin matrix of feathers.

这种集黄色，红色，橙色和棕色于一身的鸟类，能够呈现出如此多的色彩，得益于它的羽毛角蛋白间质里含有色素。

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Chrysophyta are described as "golden-brown" with a "carotenoid" pigment thus orange is quite native to this Marine algae.

金藻被称为“金黄色”来形容“类胡萝卜素”颜料，橙色是相当原产于这个海洋藻类。

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In this study, the stability of oil-soluble pigment, which was extracted from orange peel, was determined.

以柑橘皮为原料，提取油溶性橘黄素色素，并对其稳定性进行探讨。

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This causes chlorophyll (a green pigment) to return to the orange skins imbuing them with a greenish or yellowish finish as they ripen.

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