摘要
目的:对我国常见谷类、豆类食品中植物甾醇的含量和分布进行分析,并初步估计居民摄入量。方法:选择了25种谷类食物样品和16种豆类食物样品,气相色谱法分析了β-谷甾醇、菜油甾醇、豆甾醇、谷甾烷醇、菜油甾烷醇含量并计算总植物甾醇含量;同时利用2002年居民营养与健康状况调查结果,初步计算了我国居民谷类、豆类食品中植物甾醇的摄入量。结果:小麦面粉中植物甾醇含量普遍比大米要高,且粮谷类食品加工越精细,植物甾醇含量越低;豆类食品中也含有较多的植物甾醇,其中黄豆中植物甾醇含量高于其他豆类。初步估计我国居民从谷类中摄入的植物甾醇量130.76mg/标准人日,从豆类食物中摄取量为7.86mg。结论:植物甾醇含量分析和摄入量估计对科学指导膳食有重要意义,建议居民可通过摄入较多的面粉类和豆类食品来增加植物甾醇的摄入量,以降低慢性病的发生。
Objective： To analyze the phytosterols content in cereals and legumes commonly consumed in China, and to estimate the intake of phytosterols in Chinese people. Methods： 25 cereals and 16 legumes were chosen as samples. The content of β-sitosterol, campesterol, stigmasterol, β-sitostanol, campestanol were analyzed by GC methods and the total phytosterols were calculated; The intake of phytosterols in Chinese people were estimated using the data of ＂Survey on the Status of Nutrition and Health of the Chinese People＂ in 2002. Results： The content of phytosterols in wheat flour was higher than that in rice. The refinements of cereals will decrease the phytosterols content. Phytosterols content in soybean was higher than other legumes. The intake of phytosterols in Chinese people was estimated to be 130.76mg/d from cereals and 7.86mg/d from legumes. Conclusion： The analysis of phytosterols in food and the estimation of daily intake is valuable for chronic disease prevention. The higher consumption of wheat flour and legumes in diet is recommended.
出处
《营养学报》
CAS
CSCD
北大核心
2006年第5期375-378,共4页
Acta Nutrimenta Sinica
基金
中国营养学会营养科研基金2004年资助项目
关键词
谷类
豆类
植物甾醇
摄入量估计
cereals
legumes
phytosterols
intake estimation
