其次，π–π 复合物使平衡向更有利于花色烊阳离橙黄色素（yellow-orange pigments）。正是这些色素 子的方向进行，增加了其稳定性，同时也增加了红色使红葡萄酒的色度增加、色素聚合物的稳定性提高， 调花色苷分子...
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Yellow and orange pigments 黄色和橘黄色颜料
You've probably heard that leaves of deciduous trees change color in autumn because they lose their green chlorophyll molecules, allowing the underlying yellow-orange pigments to shine through.
你可能听过这种说法：落叶树在秋天变色是因为它们失去了令它们绿的叶绿素，于是下层的黄橙色素就显出了颜色。
What is still not fully understood, however, is why some trees resort to producing red pigments while others don't bother, and simply reveal their orange or yellow hues.
然而，至今仍不完全清楚，为什么有些树木倾向于制造红色素，而有些树木不去刻意制造色素，但还是会呈现出橙色或黄色。
Most of the protein is contained in the egg white, while vitamins, minerals, fats, carotenoids (orange/red/yellow pigments) and cholesterol are contained in the yolk.
大部分蛋白质存在于蛋清中，而维生素、矿物质、脂肪、类胡萝卜素和胆固醇则存在于蛋黄中。
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