Chemical compositions of the shrimp shells and extracted chitin samples.

Samples	Water (%)	Ash (%)	Protein (%)	Chitin purity (%)
BMS	5.4 ± 0.5	43.8 ± 1.4	13.9 ± 0.9	36.9 ± 1.9
AA	7.4 ± 0.2	2.2 ± 0.1	2.6 ± 0.1	87.7 ± 0.3
CGA1	3.0 ± 0.2	0.6 ± 0.1	3.1 ± 0.1	93.3 ± 0.3
CGA2	2.6 ± 0.1	0.5 ± 0.1	2.1 ± 0.1	94.7 ± 0.2
CGA3	2.3 ± 0.2	0.4 ± 0.1	1.1 ± 0.1	96.1 ± 0.2
CGA4	2.6 ± 0.1	0.4 ± 0.1	1.1 ± 0.1	95.9 ± 0.2
CGA5	2.9 ± 0.2	6.3 ± 0.1	2.5 ± 0.1	88.3 ± 0.4
CGA6	3.0 ± 0.3	2.3 ± 0.1	2.2 ± 0.1	92.4 ± 0.4
CGA7	2.8 ± 0.3	0.3 ± 0.1	1.1 ± 0.1	95.8 ± 0.2
RD1	3.1 ± 0.3	0.8 ± 0.1	1.4 ± 0.2	94.8 ± 0.4
RD2	3.1 ± 0.3	0.8 ± 0.1	1.4 ± 0.2	94.7 ± 0.4
RD3	3.1 ± 0.2	0.8 ± 0.1	1.4 ± 0.2	94.7 ± 0.1