کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1988192 | 1540314 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: XRD studies of β-chitin from squid pen with calcium solvent XRD studies of β-chitin from squid pen with calcium solvent](/preview/png/1988192.png)
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 (0 1 0) was shifted. It means that the lattice plane (0 1 0) interplanarilly spreaded to 3.4 Å, 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 (0 1 0) inversely shrank to 1.1 Å. These results suggested that Ca solvent especially influences the plane (0 1 0) of β-chitin structure.
Journal: International Journal of Biological Macromolecules - Volume 42, Issue 4, 1 May 2008, Pages 309–313