Lutein is an active carotenoid and potent natural source antioxidant . it is extracted from marigold flowers and contains a normal blend of carotenoids including : zeaxanthin and cryptoxanthin 叶黄素是一种活性类胡萝卜素，它是天然的抗氧化剂重要来源，取自万寿菊花，它含有一种纯混合类胡萝卜素：玉米黄质和隐黄质。
Nutrilite chewable concentrated fruits and vegetables tablets provide key phytonutrients ? including ellagic acid , hesperidin , lutein and lycopene ? that work together to boost overall health 每4片纽崔莱果蔬嚼片提供足够每日人体所需的植物营养素，包括柔花酸、橙皮甙、叶黄素及番茄红素，有助人体达至优质的健康水平。
The company strictly adheres to every quality indicator of the ssop system . it supplies a series of high quality products , such as chilli red pigment , lutein , capsanthin , chilli extract , chilli oil , garlic powder and garlic oil 公司严格遵循ssop卫生质量指标，向客户提供辣椒红色素、辣红素、辣椒精、辣椒油以及蒜粉、大蒜精油等一系列优质产品。
Lutein , zeaxanthin and p - cryptoxanthin content in peel was about 2 . 5 - 15 times as their respective content in pulp on the basis of fresh weight hence the peel was the principal location for the carotenoid stock in citrus fruit . 2 与果肉相比，柑橘果皮单位鲜重叶黄质、玉米黄素、 -隐黄质的含量为果肉的2 . 5 15倍，是柑橘主要的类胡萝卜素库存部位。
And they used themselves as guinea pigs . after taking a lutein supplement for 140 days , they found that the macular pigment levels in their own eyes increased from 20 to 40 percent , which would reduce the amount of blue light reaching the macula by 30 to 40 percent 研究人员以自己来做实验，结果发现在口服了140天黄体素补充剂之后，他们眼睛里的黄斑色素含量提高了20 %到40 %不等，且蓝光到达黄斑的量减少了30 %到40 % 。
L . in both peel and pulp of citrus fruit , the major carotenoids were lutein , zeaxanthin and p - cryptoxanthin . p - carotene content was lower than lutein , zeaxanthin and p - cryptoxanthin content and a - carotene was less than p - carotene . among the 53 varieties tested , lycopene was detected only in pulp of cara cara navel orange 柑橘果皮和果肉中均以叶黄质、玉米黄素、 -隐黄质为主， -胡萝卜素含量较低， -胡萝卜素极低；参试品种除红肉脐橙果肉含有番茄红素外，其余均未检测到。
Their clients include several major food and pharmaceutical companies which have asked for vehicles for nutraceuticals such as lycopene ( which can lower the risk of contracting prostrate or breast cancer ) , phytosterol ( which helps prevent the accumulation of cholesterol ) , and lutein ( which retards cataract growth ) 他们的客户包括一些大型食品及制药公司，要求制作的"纳米车"包括能降低患收缩无力前列腺癌和乳腺癌的可能性的番茄红素,有助于防止胆固醇积累的植物甾醇，以及能阻止白内障形成的叶黄素。
In order to elucidate the physiological mechanism of carotenoid formation in citrus fruit , we determined a - carotene , p - carotene , lycopene , p - cryptoxanthin , zeaxanthin and lutein content in 53 varieties that belong to various citrus types using hplc , analyzed the possible connection between color formation and carotenoid accumulation , and studied the effects of light . ga3 and mpta on carotenoid biosynthesis in peel of citrus fruit . the results are summarized below 为探讨柑橘果实类胡萝卜素形成的生理机制，本论文运用hplc技术测定了我国宽皮柑桔类、橙类、柚类及杂柑类等不同柑橘类型共53个品种(系)的-胡萝卜素、 -胡萝卜素、番茄红素、 -隐黄质、玉米黄素、叶黄质六种类胡萝卜素的含量，分析了柑橘果实不同色泽的呈现与果皮类胡萝卜素积累的可能联系，并探讨了光照、 ga _ 3 、 mpta等不同处理对柑橘果皮类胡萝卜素形成的调控机制，主要结果如下： 1
