Glycerin and glycerate .. Licorice roots. Yellow blocks to prepare drinks Glycirrhizin and Glycyrrhizates are found in licorice roots, in the form of old-fashioned crystals, using ammonium glycerides, which are yellow blocks for the preparation of beverages. Glazers are also used in medicine. Share This: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook