In a recent article published in Nature Communication it was demonstrated that biotech chitosans with specific acetylation patterns possess different physicochemical properties and biological activities compared to conventional technical chitosans with random acetylation.
Sreekumar, S., Wattjes, J., Niehues, A., Mengoni, T., Mendes, A.C., Morris, E.R., Goycoolea, F.M., and Moerschbacher, B.M. (2022). Biotechnologically produced chitosans with nonrandom acetylation patterns differ from conventional chitosans in properties and activities. Nature communications 13, 7125.