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Kosuke Okeyoshi, Tatsuo Kaneko and team review the structure, morphology and assembly of the ampholytic polysaccharide sacran extracted from the cyanobacteria Aphanothece sacrum. Compared with many microbial polysaccharides sacran has an extremely high molecular weight of over 107 gmol−1 and narrow size distribution. Self‐assembly occurs over a large length scale, producing bundles with twisted morphologies...
The biological functions of polysaccharides are influenced by their chemistry and chain conformation, which have resulted in various functional applications and new uses for polysaccharides in recent years. Sacran is an intriguing ampholytic polysaccharide with several key properties such as metal adsorption, anti‐inflammatory nature, and transdermal drug‐carrying capacity. It has an extremely high...
The redeposition of lignin to the fiber surface after organosolv pretreatment was studied using two different reactor types. Results from the conventional autoclave reactor suggest that redeposition occurs during the cooling down stage. Redeposited particles appeared to be spherical in shape. The size and population density of the particles depends on the concentration of organosolv lignin in the...