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Publication Type : Journal Article
Thematic Areas : Nanosciences and Molecular Medicine
Publisher : International Journal of Biological Macromolecules
Source : International Journal of Biological Macromolecules, Volume 42, Number 4, p.309 - 313 (2008)
Keywords : Calcium solvent, chitin, Crystalline structure, Squid pen, X-Ray Diffraction, β-Chitin
Campus : Kochi
School : Center for Nanosciences
Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences
Department : Nanosciences and Molecular Medicine
Year : 2008
Abstract : The crystalline structure of β-chitin from squid pen was investigated by X-ray diffraction (XRD). The purified β-chitin was prepared from bigfin reefsquid pen. β-Chitin was treated with saturated calcium chloride dihydrate/alchohol (CaCl2·2H2O/MeOH) solvent system at different conditions for XRD studies. The change of crystallinity of β-chitin from squid pen was studied by using the fiber photographs on imaging plates. The results showed that the diffraction peak (010) was shifted. It means that the lattice plane (010) interplanarilly spreaded to 3.4Å, when the squid pen was washed with water after treatment of Ca solvent. Furthermore, when the squid pen was dried after treatment of Ca solvent and washing with water, interplanar spacing of (010) inversely shrank to 1.1Å. These results suggested that Ca solvent especially influences the plane (010) of β-chitin structure.
Cite this Research Publication : H. Nagahama, Higuchi, T., Dr. Jayakumar Rangasamy, Furuike, T., and Tamura, H., “XRD Studies of β-chitin from Squid Pen with Calcium Solvent”, International Journal of Biological Macromolecules, vol. 42, pp. 309 - 313, 2008.