Shizuko Yamaguchi and Chikahito Takahashi Central Research Laboratories, Ajinornoto Co., Inc., 1-1 Suzuki-cho, Kawasaki, Kanagawa 210, Japan Received September 27, 1983 The taste elicited by such compounds as monosodium glutamate (MSG) is termed « umami. »1’2) « Umami » elicited by MSG has been studied extensively with respect to its nature and its intensification by various co-existing substances such…