Study on Preparation of Water-Soluble Chitosan with Varying Molecular Weights and Its Antioxidant Activity

Table 1

Degradation of chitosan in the swollen state (first step) and in solution (second step).

		First step (1% H2O2)	Second step (1% H2O2 and γ-ray)
			3.5 kGy	10.5 kGy	24.5 kGy
	CTS0	CTS1	CTS2	CTS3	CTS4
Mw (kDa)	140.1	91.7	51.7	35.1	18.6
DD (%)	91.1	91.3	90.3	91.0	89.5