北京社区居民夏秋季节膳食叶黄素、玉米黄素摄入量分析

Dietary lutein and Zeaxanthin Intake of Beijing Residents Aged Over 45 Years Old

目的:测算北京社区居民夏秋季膳食叶黄素、玉米黄素摄入量。方法:采用高效液相色谱法(HPLC)对13种常见蔬菜、水果和蛋类中叶黄素、玉米黄素和β-胡萝卜素含量进行检测。运用定量食物频率表结合HPLC测定结果,计算居民膳食叶黄素、玉米黄素摄入量。结果:被调查的541名45岁以上社区居民中,叶黄素、玉米黄素平均摄入量分别为10201.4±12852.6μg/d和245.0±260.0μg/d。二者的摄入量在月人均收入1000～1999元者中最低。39.1%和30.2%的膳食叶黄素来源于菠菜和韭菜,40.6%和31.9%的膳食玉米黄素来自韭菜和鸡蛋。结论:利用定量食物频率表结合对常见食物的HPLC测定结果,估计了北京社区居民膳食叶黄素、玉米黄素的膳食摄入量。收入水平是影响居民二者摄入量的因素之一。菠菜、韭菜为被调查者膳食叶黄素的主要来源,韭菜、鸡蛋为其膳食玉米黄素最重要的来源。

[Objective] To assess the dietary lutein and zeaxanthin intake of residents in Beijing. [Methods] HPLC method was used to separate the carotenoids in selected foods. A brief quantitative Food Frequency Questionnaire （FFQ） was used to estimate the dietary intakes of the citizens. [Results] The average dietary lutein and zeaxanthin intakes of the citizens were 10201.4 ± 12852.6 μg/d and 245.0± 260.0 μg/d, respectively. Peoples whose income was between 1000-1999 RMB/m had the lowest dietary lutein and zeaxanthin intakes. 39.1% of dietary lutein came from spinach while 40.6% of dietary zeaxanthin from Chinese chive. [Conclusion] Dietary lutein and zeaxanthin intake were estimated by a FFQ and HPLC analysis of the selected foods. Income level was one of the factors that influenced dietary lutein and zeaxanthin intakes. Spinach and Chinese chive were the major sources of dietary lutein while Chinese chive and eggs were important sources of dietary zeaxanthin.