1. Ajinomoto-seasoning popular seasoning and flavor enhancer, an MSG (monosodium glutamate) product, is the purest form of umami, the fifth taste, altogether different from sweet, salty, sour, and bitter. is widely used to intensify and enhance umami flavors in sauces, broths, soups, and many more foods. 2. What is Ajinomoto? Aji-No-Moto essence of taste is the trade name for the company’s original monosodium glutamate (MSG) product, the first of its kind, since 1909. 3. Is Ajinomoto-seasoning harmful to health? It is safe to use in small quantities and is not toxic for your health. For scrumptious recipes, videos, and exciting food news, subscribe to our free Daily and Weekly Newsletters.