Department of Metabolism and Nutrition, Institute of Food Science and Technology and Nutrition (ICTAN-CSIC), Madrid, Spain.
J Agric Food Chem. 2011 Jan 12;59(1):43-9. doi: 10.1021/jf1036596. Epub 2010 Dec 10.
The literature addresses dietary fiber (DF) and antioxidants (AOX) separately as nonrelated compounds. This paper proposes to show that DF and AOX could be approached jointly in nutrition and health studies because around 50% of the total dietary antioxidants, mainly polyphenolics, traverse the small intestine linked to dietary fiber. These antioxidants have received little attention so far. They release the fiber matrix in the colon by the action of the bacterial microbiota, producing metabolites and an antioxidant environment. The content of polyphenols associated with DF in different foods and their potential health-related properties, including animal experiments and human trials, are reviewed. It is concluded that the transportation of dietary antioxidants through the gastrointestinal tract may be an essential function of DF.
文献分别探讨膳食纤维（DF）和抗氧化剂（AOX），将其视为互不相关的化合物。本文提出，DF 和 AOX 可以在营养和健康研究中共同探讨，因为大约 50%的总膳食抗氧化剂，主要是多酚类，与膳食纤维一起穿过小肠。到目前为止，这些抗氧化剂还没有受到太多关注。它们通过细菌微生物群的作用在结肠中释放纤维基质，产生代谢物和抗氧化环境。本文综述了不同食物中与 DF 相关的多酚含量及其潜在的与健康相关的特性，包括动物实验和人体试验。结论是，膳食抗氧化剂通过胃肠道的运输可能是 DF 的一个重要功能。
