Abstract
Summary
A method of assay for histidine and lysine employing Leuconostoc mesenteroides as test organism has been developed. This method is compared with those of Dunn et al. 4 5 A method of assay similar to that of Stokes et al. 6 for lysine, arginine, and valine using Streptococcus faecalis as test organism has been independently developed and studied.
With few exceptions, the data reported agree closely with those obtained by previous investigators with microbiological or isotope dilution methods.
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