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[目的]评价利用美国类胡萝卜素成分数据估算中国膳食类胡萝卜素摄入量的可行性。[方法]采用双饭份法和称质量记录法,在夏、秋、冬、春4个季节,调查不同社区184名30～60岁居民连续3d膳食,利用美国的食物成分数据建立β-胡萝卜素、α-胡萝卜素、β-隐黄质、番茄红素、叶黄素/玉米黄质5种类胡萝卜素的食物成分表,计算5种类胡萝卜素每日摄入量。同时,采用HPLC测定膳食样品中类胡萝卜素的含量,并对两种结果进行回归分析。[结果]利用美国类胡萝卜素成分数据计算获得的中国居民膳食类胡萝卜素摄入量同HPLC测定膳食样品中类胡萝卜素的含量结果间存在直线回归关系,直线回归方程分别为:β-胡萝卜素y=824.854+0.741x,α-胡萝卜素y=0.391+0.998x,β-隐黄质y=20.515+0.971x,番茄红素y=64.964+0.984x,叶黄素/玉米黄质y=36.408+0.967x,回归系数有统计学意义(P﹤0.05)。[结论]在尚未建立中国食物类胡萝卜素成分数据的情况下,可以利用美国食物成分数据估算中国居民膳食类胡萝卜素摄入量。
[Objective] To evaluate the feasibility of using Chinese carotenoid composition data to estimate Chinese dietary carotenoid intake. [Method] Using double-meal method and quality record method, 184 consecutive 30-day-old residents aged 30-60 years in different communities were surveyed in summer, autumn, winter and spring. The data of American food composition were used to establish β-carrot Carotene, β-cryptoxanthin, lycopene, lutein / zeaxanthin five kinds of carotenoid food composition table, calculate the five kinds of carotenoids daily intake. Meanwhile, the contents of carotenoids in the dietary samples were determined by HPLC, and the regression analysis of the two results was carried out. [Result] There was a linear regression relationship between the dietary carotenoid intake of Chinese residents and the content of carotenoids in the dietary samples measured by the American carotenoid composition data. The linear regression equations were: β-carotene y = 824.854 + 0.741x, α-carotene y = 0.391 + 0.998x, β-cryptoxanthin y = 20.515 + 0.971x, lycopene y = 64.964 + 0.984x, lutein / zeaxanthin y = 36.408 + 0.967x, the regression coefficient was statistically significant (P <0.05). [Conclusion] The data of dietary carotenoids in Chinese population can be used to estimate the dietary carotenoid intake of Chinese residents without establishing the data of Chinese carotenoid content.