Ovaskainen Marja-Leena, Törrönen Riitta, Koponen Jani M, Sinkko Harri, Hellström Jarkko, Reinivuo Heli, Mattila Pirjo
Department of Health Promotion and Chronic Disease Prevention, Nutrition Unit, National Public Health Institute, FI-00300 Helsinki, Finland.
J Nutr. 2008 Mar;138(3):562-6. doi: 10.1093/jn/138.3.562.
Phenolic acids, flavonoids, proanthocyanidins, and ellagitannins are polyphenols that may have beneficial effects on human health and provide protection against chronic diseases. To date, limited data exist on quantitative intake of polyphenols. The aims of this study were to estimate the quantitative intakes of polyphenols by using analyzed concentrations together with individual food consumption records and to determine major dietary sources. Analyzed concentrations of phenolic acids, anthocyanidins, and other flavonoids, proanthocyanidins, and ellagitannins (44 total polyphenol compounds) were entered into the national food composition database, Fineli. The absolute intakes of the polyphenols and the corresponding food sources were calculated on the basis of 48-h dietary recalls of 2007 Finnish adults. The mean total intake of polyphenols was 863 +/- 415 mg/d. Phenolic acids comprised the dominant group of polyphenols (75% of total intake) followed by proanthocyanidins (14%) and anthocyanidins and other flavonoids (10%). Due to their high consumption and high concentrations of phenolic acids, coffee and cereals were the main contributors to total polyphenol intake. Berries and berry products were the main source for anthocyanidins, ellagitannins, and proanthocyanidins, and fruits were the main source for flavonols, flavones, and flavanones. The results give additional support to the recommendations for a varied diet with fruits, berries, cereals, and vegetables.
酚酸、黄酮类化合物、原花青素和鞣花单宁均为多酚类物质，它们可能对人体健康有益，并能预防慢性疾病。迄今为止，关于多酚类物质定量摄入量的数据有限。本研究的目的是结合分析浓度与个人食物消费记录来估算多酚类物质的定量摄入量，并确定其主要膳食来源。将分析得出的酚酸、花青素及其他黄酮类化合物、原花青素和鞣花单宁（共44种多酚类化合物）的浓度录入国家食物成分数据库Fineli。基于对2007年芬兰成年人的48小时膳食回顾，计算出多酚类物质的绝对摄入量及相应的食物来源。多酚类物质的平均总摄入量为863±415毫克/天。酚酸是多酚类物质的主要组成部分（占总摄入量的75%），其次是原花青素（14%）以及花青素和其他黄酮类化合物（10%）。由于咖啡和谷物的消费量高且酚酸浓度高，它们是多酚类物质总摄入量的主要贡献者。浆果及其制品是花青素、鞣花单宁和原花青素的主要来源，而水果是黄酮醇、黄酮和黄烷酮的主要来源。这些结果进一步支持了关于摄入包括水果、浆果、谷物和蔬菜在内的多样化饮食的建议。
