Other Commercial Sources of Umami

There is, however, a long list of substances other than pure MSG that are sources of umami. Faced with a growing movement on the part of many consumers to avoid foods that incorporate any of these so-called chemicals, manufacturers have had to find other ways to add glutamate. One solution is to incorporate appropriately treated protein-rich ingredients that are classified as food rather than as food additives. Often these are in the form of what are known as hydrolyzed proteins, from either animals or plants, and yeast extracts, all of which contain considerable quantities of free glutamate. Depending on the jurisdiction, these may be identified by their common or usual names.