Content of redox-active compounds (ie, antioxidants) in foods consumed in the United States
Content of redox-active compounds (ie, antioxidants) in foods consumed in the United States
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DOI：
10.1093/ajcn/84.1.95
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发表时间：
2006-07-01
影响因子：
7.1
通讯作者：
Blomhoff, Rune
中科院分区：
文献类型：
--
作者：
Halvorsen, Bente L.;Carlsen, Monica H.;Blomhoff, Rune
背景资料：在大多数随机干预试验中，含有抗坏血酸、α-生育酚或β-胡萝卜素的补充剂不能预防氧化应激相关疾病。我们认为，其他氧化还原活性植物化学物质可能更有效，不同氧化还原活性化合物的组合（即，抗氧化剂或还原剂）可能需要适当的保护免受氧化损伤。目的：我们的目的是生成一个排名的食物表与氧化还原活性化合物的总含量值来测试这个替代抗氧化剂的假设。设计：使用一种测定氧化还原活性化合物总浓度高于某一临界还原电位的测定法，分析了从美国农业部国家食品和营养分析计划获得的1113个食品样品。不同食物和食物类别的抗氧化剂含量差异很大。这些食物包括香料和香草、坚果和种子、浆果、水果和蔬菜，它们都含有非常高的抗氧化剂含量。大多数食品类别也包含几乎不含抗氧化剂的产品。在抗氧化剂浓度最高的50种食品中，有13种是香料。8个是水果和蔬菜类，5个是浆果，5个是巧克力类，5个是早餐谷物，4个是坚果或种子。根据典型的份量，黑莓，核桃，草莓，朝鲜蓟，小红莓，煮咖啡，乌藨子，山核桃。蓝莓、丁香粉、葡萄汁和不加糖的烘焙巧克力位居榜首。结论：这份抗氧化食物排行表为研究膳食抗氧化剂对健康的可能益处提供了有用的工具。
Background: Supplements containing ascorbic acid, a-tocopherol, or beta-carotene do not protect against oxidative stress-related diseases in most randomized intervention trials. We suggest that other redoxactive phytochemicals may be more effective and that a combination of different redox-active compounds (ie, antioxidants or reductants) may be needed for proper protection against oxidative damage.Objective: We aimed to generate a ranked food table with values for total content of redox-active compounds to test this alternative antioxidant hypothesis.Design: An assay that measures the total concentration of redoxactive compounds above a certain cutoff reduction potential was used to analyze 1113 food samples obtained from the US Department of Agriculture National Food and Nutrient Analysis Program.Results: Large variations in the content of antioxidants were observed in different foods and food categories. The food groups spices and herbs, nuts and seeds, berries, and fruit and vegetables all contained foods with very high antioxidant contents. Most food categories also contained products almost devoid of antioxidants. Of the 50 food products highest in antioxidant concentrations, 13 were spices. 8 were in the fruit and vegetables category, 5 were berries, 5 were chocolate-based, 5 were breakfast cereals, and 4 were nuts or seeds. On the basis of typical serving sizes, blackberries, walnuts, strawberries, artichokes, cranberries, brewed coffee, raspberries, pecans. blueberries, ground cloves, grape juice, and unsweetened baking chocolate were at the top of the ranked list.Conclusion: This ranked antioxidant food table provides a useful tool for investigations into the possible health benefit of dietary antioxidants.