... course of ChiB degradation of a chitosan with FA¼0.65. The graph shows the degree of scission (a) as a function of time. The slope of the line at low a is 1.8 · 10)3min)1,andathigher ... extreme limits of the possible variation in chemical composition of an oligomer with a given DP, while the enzymaticdegradation of chitosans results in oligomer fractions with less variation in chemical ... [5,9,10,33] for analysis of oligomer com-position. For example, we studied the time course of depolymerization of a highly acetylated but still water-soluble chitosan of high molecular mass, and...