FTIR Reflection

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FTIR Spectroscopic Study on Inner Membrane of Egg Shell of Chicken Gallus gallus domesticus
Abstract: The paper presents FTIR analysis of inner membrane of eggshell of chicken Gallus gallus domesticus. Fresh samples of egg shells are cleaned; dried and inner membrane of the shell is separated carefully for FTIR analysis. FTIR spectrum reveals a series of bands related to fats and proteins. Calcium carbonate is the major constituent (about 90%) of the shell, but it is absent in the inner shell membrane as characteristic band at 712 cm-1 is not seen in the spectrum. However, characteristic bands at 870 cm-1 and 1450 cm-1 suggest that inner shell membrane possesses carbonate ion.
The study concludes that the major constituent of inner shell membrane
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The principal characteristics bands at 2924 cm-1 (CH2 Asymmetric stretch), 2852 cm-1 (CH2 Symmetric stretch) and 1458 cm-1(CH2 Bend), observed in the spectrum, are concerned mainly with lipids.
But the bands at 1430 cm-1, 875 cm-1 and 715 cm-1, concerned with calcium carbonate, are not seen in the spectrum revealing the fact that inner eggshell membrane is free from calcium carbonate. However, characteristic bands at 870 cm-1 and 1450 cm-1 suggest that inner shell membrane possesses carbonate ion.
The study concludes that the major constituent of inner shell membrane of Gallus gallus domesticus is organic (protein and fat) in contrast to the

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