27] Unusual Observations about Microbial, Plant, and Animal Polysaccharides May 14, 2026 By: Richard D. CummingsFive of the most famous giant polysaccharides produced by microbes, plants, and animals are peptidoglycan, starch, cellulose, chitin, and hyaluronic acid (hyaluronan, HA). ... Read More 27] Unusual Observations about Microbial, Plant, and Animal Polysaccharides