Excerpted from The Flavour Principle © 2013 by Lucy Waverman and Beppi Crosariol. Published by HarperCollins Publishers Ltd. All rights reserved.
The fifth taste, umami, has much to do with glutamate, an amino acid found in such foods as prosciutto, soy sauce and a number of cheeses. Umami can show up in your glass, too (fermentation is glutamate's old friend).