And which can be produced at low cost easily and excellent stability kokumi-imparting activity superior by searching variations many compounds having CaSR agonistic activity, and having a kokumi-imparting effect of the first taste especially Type kokumi-imparting agent and found this substance capable of imparting a kokumi consists substance, and to provide a composite kokumi-imparting agent comprising a material having a CaSR agonistic activity of the other substance. composite kokumi imparting agent kokumi-imparting agent consisting of (L-γ- glutamyl -L-2- amino butyric acid) γ-Glu-Abu, and be used in combination with a substance having a CaSR agonist activity of the other substance.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、特に先味型のコク味付与作用を有し、かつ安定性に優れ簡便かつ低コストで生産することが可能な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。γ-Glu-Abu(L-γ-グルタミル-L-2-アミノ酪酸)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。
