我国常见蔬菜类黄酮物质的含量

目的测定我国常见蔬菜5种类黄酮物质的含量。方法蔬菜样品分别采自北京、天津、上海、杭州,采用高效液相色谱法测定槲皮素、坎二菲醇、玉米黄酮、杨梅黄酮、芹菜配基含量。结果在46种蔬菜中,杭州美芹的类黄酮物质含量最为丰富,其它如洋葱、芹菜、藕、豆角中含量也较为丰富;在5种类黄酮物质中,槲皮素分布最广,含量最为丰富;我国居民每日人均蔬菜5种类黄酮物质摄入量约为13.90mg,其中槲皮素占51.1%。结论不同蔬菜类黄酮物质含量差异较大;槲皮素是蔬菜中最为常见的类黄酮物质;我国居民膳食类黄酮物质来源蔬菜多于水果。

FLAVONOID CONTENTS OF COMMON VEGETABLES IN CHINA

Objective To analyze the flavonoid content of common vegetables consumed in China.Method Forty-six vegetables were sampled from Beijing,Tianjin,Shanghai and Hangzhou.The contents of quercetin,kaempferol,luteolin,myricetin,apigenin were determined with high-performance liquid chromatography.Results Mei celery sampled from Hangzhou was the highest in content of 5 flavonoids among 46 vegetables.Quercetin distributed more widely and was more abundant than other flavonoids in vegetables.The daily intake of 5 flavonoids from vegetables by Chinese people was estimated to be 13.90 mg,in which quercetin accounted for 51.1%.Conclusion The content of flavonoids varies significantly among different vegetables and quercetin is the most common flavonoid contained in vegetables.The dietary intake of flavonoids was more from vegetables than fruits in Chinese people.