Functions to calculate the relative crystallinity of starch by X-ray Diffraction (XRD) and Infrared Spectroscopy (FTIR). Starch is biosynthesized by plants in the form of granules semicrystalline. For XRD, the relative crystallinity is obtained by separating the crystalline peaks from the amorphous scattering region. For FTIR, the relative crystallinity is achieved by setting of a Gaussian holocrystalline-peak in the 800-1300 cm-1 region of FTIR spectrum of starch which is divided into amorphous region and crystalline region. The relative crystallinity of native starch granules varies from 14 of 45 percent. This package was supported by FONDECYT 3150630 and CIPA Conicyt-Regional R08C1002 is gratefully acknowledged.
|Author||Claudio Pozo Valenzuela [aut, cre], Saddys Rodriguez-Llamazares [aut]|
|Date of publication||2016-10-18 10:20:48|
|Maintainer||Claudio Pozo Valenzuela <firstname.lastname@example.org>|
crystMW: Relative Crystallinity Calculation of X-Ray Diffraction...
crystSG: Relative Crystallinity Calculation of X-Ray Diffraction...
fitFTIRc: Relative Crystallinity Calculation of FTIR Spectrum of Starch...
FTIR: FTIR Spectra of A-, B-, and C-Type Starch
ftirplot: Plots the Crystalline Area of a FTIR Spectrum of Starch
XRD: X-Ray Diffraction Patterns of A-, B-, and C-Type Starch
xrdplot: Plots the Crystalline Area of a X-Ray Diffraction Pattern of...
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