A Qualitative Analysis of the Amino Acids in Royal Jelly

Abstract
Paper chromato-graphic separation and identification of free amino acids and amino acids liberated from protein by acid and alkali hydrolysis in royal jelly of young worker honey bees (Apis mellifera) demonstrates the presence of alanine, arginine, aspartic acid, glutamic acid, glycine, isoleucine and/or leucine, lysine, methionine, ty-rosine, and valine in both free and protein-bound form; proline, serine, glutamine, and taurine in free form only; and cystine and phenylalanine as protein constituent only. An unkown amino acid appears in free state.
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