Abstract
Pattern analysis of peptides in soy sauce was tried by gel filtration and ion exchange chromatography. In gel filtration through Sephadex G-15, the separation of smaller peptides and amino acids in soy sauce was found to be not so critical. Subsequently the mapping of peptides in soy sauce was done by ion exchange chromatography with Dowex 50-X2. Consequently it was estimated that there existed more than ten kinds of peptides in soy sauce. Moreover, in the mapping of peptides, the automated measurement by the use of a discrete type analyzer, EEL Auto Chemist, was tried. The method developed here was not fully automated but available and effective for the mapping of peptides eluted from an ion exchange resin column.
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