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. 2017 Apr 25;8:515. doi: 10.3389/fmicb.2017.00515

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Copyright © 2017 Singh, Parihar, Singh, Bajguz, Kumar, Singh, Singh and Prasad.

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) or licensor 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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Chemical structures and significance of phycocolloid compound: (A) carrageenan, (B) agar, and (C) alginate polymer obtained from different cyanobacteria and algae.