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Characterization of Secondary Structure of Pig Hair Fiber Using Fourier-transform Infrared Spectroscopy

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Title Characterization of Secondary Structure of Pig Hair Fiber Using Fourier-transform Infrared Spectroscopy
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Creator Not Available
N H Mohan, M.Choudhury, L Ammayappan, Prajwalita Pathak, Sujay Chakraborty, R. Thomas,S.Debnath, Maitry Paul and D.K.Sarma
 
Subject pig hair, FTIR, protein structure
 
Description Not Available
Hair or bristle is one of the key by-products of humane slaughter of pigs. In
the present study, Fourier-transform infrared (FTIR) spectroscopy was used
for examining protein secondary structure of hair fier from diffrent breeds
of pigs (Ghungroo, Ninag Megha, Hampshire, and Duroc). Prominent amide
I (1635–1648 cm−1 ) and amide II (1517–1528 cm −1 ) bands could be observed
in the spectra. Diffrences in presence/absence of certain FTIR bands
between breeds suggests inflence of genetic background in the structure
of hair fier. Deconvolution resolved secondary structure of protein in amide
I region of spectra into corresponding α-helix (38.0 ± 2.9%), β-sheets
(32.2 ± 2.0%), β-turns (19.4 ± 3.1%) and unorganized structural components
(10.3 ± 2.5%). Heating of fiers from 80°C to 120°C resulted in changes in
amide regions and α-helix to β-sheet ratio of amide I band. Further, correlations were calculated between area under the curve of various FTIR bands
and tensile properties of the fier. Area of FTIR band at 1635 cm −1 was
positively correlated with tenacity, initial modulus, extensibility, and work of
rupture (r = 0.30 to 0.39). In nutshell, the study reveals subtle diffrences in
secondary structure of hair with respect to breed or temperature treatment
and suggests relation between FTIR spectral characteristics and tensile
properties.
Indian Council of Agricultural Research
 
Date 2020-12-30T04:02:32Z
2020-12-30T04:02:32Z
2020-12-28
 
Type Article
 
Identifier Mohan NH , M. Choudhury , L. Ammayappan , Prajwalita Pathak , Sujay Chakraborty , R. Thomas , S. Debnath , Maitry Paul & D. K. Sarma (2020).Characterization of Secondary Structure of Pig Hair Fiber Using Fourier-transform Infrared Spectroscopy. Journal of Natural Fibers, DOI: 10.1080/15440478.2020.1856272
DOI: 10.1080/15440478.2020.1856272
http://krishi.icar.gov.in/jspui/handle/123456789/44232
 
Language English
 
Relation Not Available;
 
Publisher Journal of Natural Fibers, Taylor and Francis