出典:Wikipedia
出典:『Wikipedia』 (2011/04/21 10:02 UTC 版)
Xanthophylls (originally phylloxanthins) are yellow pigments from the carotenoid group. The name is from Greek xanthos (ξανθος, "yellow") + phyllon (φύλλον, "leaf"), due to their contribution to the yellow band in early chromatography of leaf pigments. Their molecular structure is similar to carotenes, but they have oxygen atoms. Thus, they are carotenoids but no longer carotenes.
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