Composition and content of phenolic acids and avenanthramides in commercial oat products: Are oats an important polyphenol source for consumers?

ABSTRACT: Oats contain a range of phenolic acids and avenanthramides which may have health benefits. Analysis of 22 commercial oat products (oat bran concentrate, oat bran, flaked oats, rolled oats and oatcakes) using HPLC-DAD detected eleven bound and thirteen free?+?conjugated phenolic acids and avenanthramides. The oat products (excluding concentrate) provided between 15.79 and 25.05?mg total phenolic acids (9.9-19.33?mg bound, 4.96-5.72?mg free?+?conjugated) and between 1.1 and 2?mg of avenanthramides in a 40?g portion while an 11?g portion of oat concentrate provided 16.7?mg of total phenolic acids (15.17?mg bound, 1.53?mg free?+?conjugated) and 1.2?mg of avenanthramides. The compositions and concentrations of the components in the different products were broadly similar, with the major component being ferulic acid (58-78.1%). The results show that commercial oat products are a source of phenolic acids and avenanthramides for consumers.

SUBMITTER: Soycan G 

PROVIDER: S-EPMC6694861 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature