参考文献:
*1: Shizuko Yamaguchi (1967) The Synergistic Taste Effect of Monosodium Glutamate and Disodium 5′‐Inosinate.
*2: Takashi Sasano, Shizuko Satoh-Kuriwada and Noriaki Shoji (2013) Important role of umami taste sensitivity in oral and overall health.