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. 2018 Oct 26;5:153. doi: 10.3389/fcvm.2018.00153

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Copyright © 2018 Patil, Le, Sligar, Mei, Chavarria, Yang and Baker.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Representative image of green seaweeds (chlorophyta/charophyta) and chemical structure of derived polysaccharides. (A) Photograph of the red seaweed gelidium pusillum, a source of agar. Inset image is a magnified view of the cellular structure of the gelidium pusillum frond. Photographs courtesy of David Fenwick, used with permission¹. (B) Chemical structure of polysaccharide agar, derived from red algae. (C) Generalized chemical structure of carrageenan, a linear polysaccharide from edible red seaweeds.