Investigation of Biomaterial Characteristics of Chitosan Produced from Crab Shells
Chitosan is a biomaterial that can be obtained from certain parts of aquatic fauna like scales and shells. They are cheap, readily available and environment-friendly complexing agents for heavy metals. In this study, crab shell was used as a source of chitosan and compared with commercial chitosan. The yield was 22.75% and 71% degree of de-acetylation. Solubility test showed that it will dissolve within 30 minutes in 0.1 M HCl. The FTIR indicated the presence of –OH functional group at wavelength 1350 cm-1and R-NH2 at 3450 cm-1. SEM revealed that the locally developed chitosan has a rough surface characterized with holes, and has a porous spongy structure. Electron Dispersive Spectroscopy (EDS) was used to examine the presence of elements on the chitosan. Results showed the presence of C, N, O and Na. Usually, Hydrogen is usually present in organic materials but EDS cannot detect its’ presence. XRD revealed a low crystallinity of the chitosan obtained.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Posted 02 Jun, 2020
Investigation of Biomaterial Characteristics of Chitosan Produced from Crab Shells
Posted 02 Jun, 2020
Chitosan is a biomaterial that can be obtained from certain parts of aquatic fauna like scales and shells. They are cheap, readily available and environment-friendly complexing agents for heavy metals. In this study, crab shell was used as a source of chitosan and compared with commercial chitosan. The yield was 22.75% and 71% degree of de-acetylation. Solubility test showed that it will dissolve within 30 minutes in 0.1 M HCl. The FTIR indicated the presence of –OH functional group at wavelength 1350 cm-1and R-NH2 at 3450 cm-1. SEM revealed that the locally developed chitosan has a rough surface characterized with holes, and has a porous spongy structure. Electron Dispersive Spectroscopy (EDS) was used to examine the presence of elements on the chitosan. Results showed the presence of C, N, O and Na. Usually, Hydrogen is usually present in organic materials but EDS cannot detect its’ presence. XRD revealed a low crystallinity of the chitosan obtained.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15