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 |
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N H Mohan, M.Choudhury, L Ammayappan, Prajwalita Pathak, Sujay Chakraborty, R. Thomas,S.Debnath, Maitry Paul and D.K.Sarma |
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Subject |
pig hair, FTIR, protein structure
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Description |
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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 |
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Date |
2020-12-30T04:02:32Z
2020-12-30T04:02:32Z 2020-12-28 |
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Type |
Article
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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 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Journal of Natural Fibers, Taylor and Francis
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