Daily consumption of phenolics and total antioxidant capacity from fruit and vegetables in the American diet
Daily consumption of phenolics and total antioxidant capacity from fruit and vegetables in the American diet
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DOI：
10.1002/jsfa.2176
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发表时间：
2005-08-15
影响因子：
4.1
通讯作者：
Lee, CY
中科院分区：
文献类型：
--
作者：
Chun, OK;Kim, DO;Lee, CY
根据最常见的34种新鲜水果和蔬菜及其每日消费量数据，估算了美国人膳食中总酚类物质、总黄酮和抗氧化剂的每日摄入量。在14种水果和20种蔬菜中，橙子的总酚含量最高[117.1 mg没食子酸当量（GAE）人（-1）天（-1）]，抗氧化剂含量最高[146.6 mg维生素C当量（VCE）人（-1）天（-1）]。橙子在水果和蔬菜的日常消费中分别贡献了约26%和25%的总酚和抗氧化剂。苹果表现出相对较高的总酚类物质和抗氧化能力相媲美的橙子和他们的酚类物质和抗氧化剂的贡献是第二高。尽管土豆的酚类物质和抗氧化能力较低，但它们排在第三位，因为它们的消费量是美国饮食中最高的（137.9磅人（-1）年（-1））。虽然李子和草莓被列为34种测试水果和蔬菜中总酚和抗氧化能力最高的一组，但由于其每日消费量较低，它们的贡献相对较低。总体而言，水果的总酚、总黄酮含量和抗氧化能力均高于蔬菜。据估计，美国人每天从水果和蔬菜中摄入的酚类、类黄酮和抗氧化剂分别为450 mg GAE、103 mg儿茶素当量和591 mg VCE。虽然我们还不知道每天所需的抗氧化剂的最低量，但当我们估计每天所需的抗氧化剂时，我们不仅要考虑特定食物的抗氧化剂浓度，还要考虑食物的每日摄入量。(c)2005化学工业协会。
The daily intake of total phenolics, total flavonoids and antioxidants in the American diet was estimated from the most common 34 fresh fruit and vegetables and their daily consumption data. Among 14 fruit and 20 vegetables, orange contributed the highest amount of total phenolics [117.1 mg gallic acid equivalent (GAE) person(-1)day(-1)] and antioxidants [146.6mg vitamin C equivalents (VCE) person(-1) day(-1)]. Orange contributed about 26 and 25% of total phenolics and antioxidant, respectively, in the daily consumption of fruit and vegetables. Apples showed relatively high levels of total phenolics and antioxidant capacity comparable to those of oranges and their phenolics and antioxidants contribution is the second highest. Even though potatoes had lower levels of phenolics and antioxidant capacity, they were third due to the fact that their consumption is the highest (137.9 lb person(-1) year(-1)) in the American diet. Although plums and strawberries were ranked as the group with the highest total phenolics and antioxidant capacity among 34 tested fruit and vegetables, their contributions were relatively low due to their lower daily consumption. Generally, the levels of total phenolics, total flavonoids and antioxidant capacity of fruits were higher than those of vegetables. American daily intake of phenolics, flavonoids and antioxidants from fruits and vegetables was estimated to be 450 mg GAE, 103 mg catechin equivalents and 591 mg VCE, respectively. Although we do not yet know the required minimum daily amounts of antioxidants, when we estimate the daily requirement of antioxidants, we must consider not only the antioxidant concentrations of the particular food, but also the daily intakes of the food. (c) 2005 Society of Chemical Industry.