FLAVONOID CONTENTS OF COMMON VEGETABLES IN CHINA / 营养学报

ABSTRACT

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.