叶黄素类， 茶叶中类胡萝卜素的主要成分。结构特征为共轭多烯烃的含氧衍生物，可以醇、醛、酮、酸的形式存在。
最理想的是让叶黄素和脂肪类(橄榄油最好)一起摄入，这样吸收的最好。
Ideally, get your lutein in combination with some form of fat (olive oil works great) for the best absorption.
叶黄素循环是指玉米黄质、花药黄质和紫黄质类之间的相互转换，它在高等植物光保护过程中发挥了重要作用。
The xanthophylls cycle refers to the conversion among zeaxanthin, antheraxanthin and violaxanthin, which plays a significant role in plant photoprotection process.
叶黄素是一种混合类胡卜素，包括玉米黄质和隐黄质。
It is naturally derived from marigold flowers and contains a normal blend of carotenoids including zeaxanthin and cryptoxanthin.
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