Excellent stability kokumi-imparting effect better by searching variations many compounds having CaSR agonist activity, and has a full-bodied taste grant effect of high titers of medium aftertaste type in particular, to grant kokumi kokumi-imparting agent have found this material which can be composed of the material, and to provide a composite kokumi-imparting agent comprising a material having a CaSR agonistic activity and other substance. composite kokumi imparting agent kokumi-imparting agent consisting of - (glycine L-γ- glutamyl -L- norvalyl), and formed by a combination of a substance having a CaSR agonist activity of other substance γ-Glu-Nva-Gly.CaSRアゴニスト活性を有する多くのバリエーション化合物を探索してより優れたコク味付与作用、特に中後味型の高力価のコク味付与作用を有し、かつ安定性に優れた、コク味を付与するこのできる物質を見出し、該物質からなるコク味付与剤、及び該物質と他のCaSRアゴニスト活性を有する物質からなる複合コク味付与剤を提供すること。γ-Glu-Nva-Gly(L-γ-グルタミル-L-ノルバリル-グリシン)からなるコク味付与剤、及び該物質に他のCaSRアゴニスト活性を有する物質を併用してなる複合コク味付与剤。
