162 



KERATIN AND KERATINIZATION 



Table 7. Keratins as Chemically-Reactive Substances* 

 (gramme equivalents per 10 5 g of keratin). 



* Taken from Ward and Lundgren (1954). 



t Aromatic nuclei available for coupling with diazonium salts : tyrosine 

 plus histidine. 



X Oxidation capacity calculated as twice the number of oxygen atoms 

 rapidly consumed from performic acid. 



Table 8. N-Terminal Amino Acids of Hair and Wool* 



See references on page 163. 



