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The pig hair keratin (PHK) has been successfully extracted by a facile method of reduction, and the optimal yield of pure keratin is 61%. FT-IR and CD spectra indicate that the secondary structure of the extracted PHK is mostly β-sheet and random coil. UV-Vis spectra show that characteristic absorption peaks at the vicinities of 208 nm and 275 nm were assigned to both benzene ring and auxochrome substituents...
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