Xanthophyll (lutein, zeaxanthin) content in fruits, vegetables and corn and egg products
Xanthophyll (lutein, zeaxanthin) content in fruits, vegetables and corn and egg products
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DOI：
10.1016/j.jfca.2008.07.006
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发表时间：
2009-02-01
影响因子：
4.3
通讯作者：
Johnson, Elizabeth J.
中科院分区：
文献类型：
--
作者：
Perry, Alisa;Rasmussen, Helen;Johnson, Elizabeth J.
叶黄素和玉米黄质是类胡萝卜素，被选择性地吸收到眼睛黄斑中，被认为可以防止与年龄相关的黄斑变性的发展。目前的饮食数据库很难确定它们在眼睛健康中的各自作用，因为它们在食物中的浓度通常是一起报告的。这项工作的目的是根据 NHANES 2001-2002 年摄入量确定膳食叶黄素主要食物来源中叶黄素和玉米黄质的浓度。研究发现，玉米和玉米产品是膳食玉米黄质的主要来源，而绿叶蔬菜是膳食叶黄素的主要来源。所有食品的主要异构体叶黄素形式都是反式的。加工食品比水果和蔬菜含有更多的顺式叶黄素异构体。这些数据将为当前常见食品中叶黄素和玉米黄质含量的数据库提供补充信息，并提高这些叶黄素膳食摄入量及其各自对健康贡献的估计的有效性。 (C) 2008 Elsevier Inc. 保留所有权利。
Lutein and zeaxanthin are carotenoids that are selectively taken up into the macula of the eye where they are thought to protect against the development of age-related macular degeneration. Current dietary databases make it difficult to ascertain their individual roles in eye health because their concentrations in foods are generally reported together. The objective of this work is to determine the concentrations of lutein and zeaxanthin, separately, within major food Sources of dietary xanthophylls as determined by NHANES 2001-2002 intakes. Corn and corn products were found to be major contributors of dietary zeaxanthin whereas green leafy vegetables were major contributors of dietary lutein. The predominant isomeric xanthophyll form was trans for all foods. processed foods contained more cis xanthophyll isomers than fruits and vegetables. These data will provide added information to the current databases for lutein and zeaxanthin content of commonly consumed foods as well as enhance the validity of estimates of dietary intake of these xanthophylls and their respective contributions to health. (C) 2008 Elsevier Inc. All rights reserved.