Editing Polyphenol (section)

===Quideau definition===
[[File:Raspberry ellagitannin.png|thumb|upright=1.35|right|[[Raspberry ellagitannin]], a [[tannin]] composed of 14 gallic acid units around a core of three units of glucose, with two gallic acids as simple esters, and the remaining 12 appearing in 6 ellagic acid-type units. Ester, ether, and biaryl linkages are present, see below.]]

According to Stéphane Quideau, the term "polyphenol" refers to compounds derived from the [[shikimate]]/phenylpropanoid and/or the [[polyketide]] pathway, featuring more than one phenolic unit and deprived of nitrogen-based functions.{{Citation needed|date=July 2021}}

[[Ellagic acid]], a molecule at the core of naturally occurring phenolic compounds of varying sizes, is itself not a polyphenol by the WBSSH definition, but is by the Quideau definition. The [[raspberry ellagitannin]],<ref>{{Cite web |url=http://www.scri.ac.uk/scri/image/Research/qhn/cardiovascular/Raspberry-Ellagitannin.jpg|title=Cardiovascular disease and phytochemicals. Anonymous. C. Hamilton et al.}}</ref> on the other hand, with its 14 [[gallic acid]] moieties (most in ellagic acid-type components), and more than 40 phenolic hydroxyl groups, meets the criteria of both definitions of a polyphenol. Other examples of compounds that fall under both the WBSSH and Quideau definitions include the [[black tea]] [[theaflavin-3-gallate]] shown below, and the hydrolyzable tannin, [[tannic acid]].{{Citation needed|date=July 2021}}