TY - JA AU - Carpenter,K.J. TI - The estimation of the available lysine in animal-protein foods SN - 0264-6021 PY - 1960/// CY - United Kingdom PB - Portland Press KW - AGROVOC KW - Lysine KW - Feeds KW - Protein sources N2 - This paper describes the development of a procedure for the estimation in foods of the lysine units whose <-amino groups will undergo the Sanger reaction with fluorodinitrobenzene. There is reason to think that those lysine units in the proteins of heat-processed foods whose <-amino groups are bound to other groups, and so are unable to react, are likely also to be nutritionally 'unavailable' (Eldred & Rodney, 1946; Lea & Hannan, 1950; Henry & Kon, 1950). As a consequence of this, methods of analysis for lysine that begin with acid hydrolysis have been found to overvalue foods as sources of this amino acid DO - https://doi.org/10.1042/bj0770604 T2 - Biochemical Journal ER -