Table 1.

Molecular weights and degrees of deacetylation of the chitosans used

ChitosanMean DDA level ± SD (%)MwaMw/Mn
140.0 ± 0.5300,0581.63
250.2 ± 0.42,000NAc
349.6 ± 0.2335,9491.57
470.2 ± 0.5440,9711.6
5b80.0 ± 5.025,000–35,000NA
695.9 ± 0.345,9051.89
796.1 ± 0.7131,9582.41
  • a Except for chitosan 5, the Mw represents the weight-average molecular weight, which was analyzed by high-pressure liquid chromatography (HPLC) with a light-scattering detector.

  • b Chitosan 5 was mainly used in this study.

  • c NA, not available.