Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Oct 14;23(10):2636. doi: 10.3390/molecules23102636

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Structure of phenolic compounds involved in the lignan macromolecular complex. (A) Structure of the complex components: (1) secoisolariciresinol (R = H), or secoisolariciresinol diglucoside (SDG, R = β-d-glucose), (2) herbacetin (R = H) or herbacetin diglucoside (HDG, R = β-d-glucose), (3) p-coumaric acid (R = H), or p-coumaric acid glucoside (CouG, R = β-d-glucose), (4) caffeic acid (R = H) or caffeic acid glucoside (CafG, R = β-d-glucose), (5) ferulic acid (R = H) or ferulic acid glucoside (FerG, R = β-d-glucose), (6) hydroxymethylglutaric acid (HMGA). (B) Schematic representation of lignan macromolecule, where a unit of SDG or HDG is ester-linked to another unit, thanks to HMGA, which can be replaced by one hydroxycinnamic acid glucoside (HCAG) unit (CouG, CafG, or FerG) in terminal position of the chain.