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December 2022

The Buffering Properties of Keratin Scrapings

Journal/Book: THE BRITISH JOURNAL OF DERMATOLOGY FEBRUARY 1960 Vol. 72 S.51-57. 1960;

Abstract: Department of Medicine St. Thomas's Hospital Medical School and Department of Dermatology St. Thomas's Hospital London When alkali or acid was added to a water extract of keratin scrapings the extract behaved as a buffer. Amino acids were found to be present in considerable concentrations in the water extracts and were identified and found to be the same in all specimens of keratin scrapings which were examined. The amino-acid nitrogen concentration varied considerably in different specimens and this correlated with buffering ability. The washed keratin residues also acted as buffers but were less effective than the water extract. Specimens from different subject did not differ materially in the buffering ability. . . .

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