济宁市城乡社区成人四个季节膳食类胡萝卜素的摄入量

目的测定部分城乡成年居民膳食类胡萝卜素摄入量水平。方法从三个不同类型的社区中,选择184名30～60岁成人(男84,女100)作为被调查对象,采用"双份饭法"分别于夏、秋、冬、春四个季节收集被调查者连续3 d的全部膳食,用HPLC测定其中β-胡萝卜素、α-胡萝卜素、β-隐黄质、番茄红素、叶黄素和玉米黄质六种类胡萝卜素的含量。结果被调查者夏季膳食中β-胡萝卜素、α-胡萝卜素、β-隐黄质、番茄红素和叶黄素+玉米黄质的平均每日摄入量分别为2.48±2.71 mg、276.6±469.4μg、86.9±241.4μg、2.16±3.38 mg和1.48±1.65 mg;秋季分别为3.39±4.10 mg、271.7±462.8μg、339.9±1016.8μg、0.25±1.34 mg和2.07±3.00 mg;冬季分别为2.85±3.76 mg、302.7±622.6μg、108.8±142.3μg、0.36±1.46 mg和1.97±3.00 mg;春季分别为3.76±3.35mg、162.4±413.9μg、42.1±93.8μg、0.86±1.39 mg和6.10±6.26 mg。各种类胡萝卜素摄入量均随季节而变化,夏季摄入番茄红素较多,秋季摄入β-隐黄质较多,春季摄入叶黄素+玉米黄质较多,而β-胡萝卜素、α-胡萝卜素摄入量的季节波动较小。城市中心社区居民类胡萝卜素摄入量一般较高,城市周边社区和农村社区居民摄入量较低;农村社区居民只有春季叶黄素+玉米黄质摄入量高于城市中心社区居民。结论本研究报告了三种不同社区居民类胡萝卜素摄入量数据,为类胡萝卜素营养研究提供部分资料。

DIETARY INTAKES OF CAROTENOI DS IN CHINESE ADULTS FROM URBAN, SUBURBAN AND RURAL COMMUNITIES

Objective To explore the dietary intakes of carotenoids in Chinese adults.Method One hundred and eighty four 30-60 year-old adults(84 males and 100 females) from three different communities were recruited in the investigation.The dietary samples were collected by double-servings in every season of the year respectively.The double sample comprised all the foods of continuous 3 d at equal variety and quantity,and were analyzed by HPLC for the contents of β-carotene,α-carotene,β-cryptoxanthin,lycopene,and lutein/zeaxanthin.Results The dietary samples were collected and analyzed from 184,184,169,and 161 subjects in summer,autumn,winter and spring respectively.The dietary intakes of β-carotene,α-carotene,β-cryptoxanthin,lycopene,and lutein+zeaxanthin in the investigated subjects in summer were 2.48±2.71mg,276.6±469.4 μg,86.9±241.4 μg,2.16±3.38 mg,and 1.48±1.65 mg respectively.Those in autumn were 3.39±4.10 mg,271.7±462.8 μg,339.9±1016.8 μg,0.25±1.34 mg and 2.07±3.00 mg respectively.Those in winter were 2.85±3.76 mg,302.7±622.6 μg,108.8±142.3 μg,0.36±1.46 mg and 1.97±3.00 mg.and those in spring were 3.76±3.35 mg,162.4±413.9 μg,42.1±93.8 μg,0.86±1.39 mg and 6.10±6.26 mg respecfively.The lycopene intakes were relatively higher in summer,β-cryptoxanthin higher in autumn,and lutein/ zeaxanthin higher in spring.The intakes of β-and α-carotene were relatively less fluctuated by seasons.Generally,the subjects from the central urban community consumed more carotenoids than those from the outskirt community and the rural village,with the only exception of lutein/zeaxanthin intake in spring.Conclusion The dietary carotenoids intakes in Chinese adults were studied,and the data would be helpful for further researches about carotenoids nutrition among Chinese population.