Yeast extract is rich in various proteins , free amino acids , carbohydrates ,
vitamins , and minerals . It has a
protein content of about 50 %, of which about
20 % is glutathione , 6 % is a nucleic acid .
Think about tomatoes with Parmesan cheese ; they have that Umami sensation
just like yeast extract . It ’ s not sweet , and it ’ s not sour . It ’ s that savory sensation