自由生活的受试者在食用各种饮食时对槲皮素和山奈酚的摄入量。

Consumption of quercetin and kaempferol in free-living subjects eating a variety of diets.

作者信息

de Vries J H, Janssen P L, Hollman P C, van Staveren W A, Katan M B

机构信息

Department of Human Nutrition, Wageningen Agricultural University, The Netherlands.

出版信息

Cancer Lett. 1997 Mar 19;114(1-2):141-4. doi: 10.1016/s0304-3835(97)04645-4.

DOI:10.1016/s0304-3835(97)04645-4

PMID:9103274

Abstract

Quercetin and related flavonoids are anticarcinogenic in rats, but little is known about human intakes. The intake of five major flavonols and flavones was calculated using 1-day dietary records of 17 volunteers from 14 countries, and using both 3-day records and a food frequency questionnaire of eight Dutch adults. Total consumption (+/- SD) was 27.6 +/- 19.5 mg/day in the international subjects, 34.1 +/- 31.2 mg/day in the Dutch adults according to 3-day records, and 41.9 +/- 23.7 mg/day according to questionnaires. Quercetin contributed 68-73%, and kaempferol 22-29%, the major sources being tea and onions. A brief food frequency questionnaire may be a suitable method for ranking individuals by flavonol intake.

摘要

槲皮素及相关类黄酮对大鼠具有抗癌作用，但人们对其在人体中的摄入量了解甚少。利用来自14个国家的17名志愿者的1日饮食记录，以及8名荷兰成年人的3日饮食记录和食物频率问卷，计算了5种主要黄酮醇和黄酮的摄入量。国际研究对象的总摄入量（±标准差）为27.6±19.5毫克/天，根据3日饮食记录，荷兰成年人的总摄入量为34.1±31.2毫克/天，根据问卷则为41.9±23.7毫克/天。槲皮素占68 - 73%，山奈酚占22 - 29%，主要来源是茶和洋葱。简短的食物频率问卷可能是按黄酮醇摄入量对个体进行排名的合适方法。