Table 1.

Physiochemical parameters of chitosan extracted from swimming crab shells.

	Yield (%)	Ash (%)	Deacetylation degree (%)	Molecular weight (kDa)
Chitosan A-90	13.2 ± 0.2a	0.8 ± 0.1a	62.2 ± 1.5e	1816.3 ± 51.7a
Chitosan B-90	12.2 ± 0.4b	0.6 ± 0.1b	70.8 ± 1.5d	1187.2 ± 42.1b
Chitosan C-90	12.0 ± 0.2b	0.6 ± 0.1b	73.2 ± 1.5d	953.3 ± 59.5c
Chitosan A-120	11.7 ± 0.3c	0.4 ± 0.1c	80.5 ± 1.3c	598.7 ± 76.1d
Chitosan B-120	11.3 ± 0.2c	0.3 ± 0.1c	84.1 ± 1.2b	445.2 ± 35.5e
Chitosan C-120	11.2 ± 0.3c	0.3 ± 0.1c	88.5 ± 1.5a	306.5 ± 32.3f

Values with different letters in the same column are significantly different at p < 0.05.

Data are expressed as mean ± standard deviation, n = 3.