Publications for the metabolite Protocatechuic acid with food phytochemical Quercetin

1. Kahle K, Kempf M, Schreier P, Scheppach W, Schrenk D, Kautenburger T, Hecker D, Huemmer W, Ackermann M, Richling E: Intestinal transit and systemic metabolism of apple polyphenols. Eur J Nutr. 2011 Oct;50(7):507-22. doi: 10.1007/s00394-010-0157-0. Epub 2010 Dec 24. [PubMed:21184087 ]