Vanilla pulp used in papermaking, in which the lignin is broken down using sulfites or sulfates. However, vanillin is only one of 171 identified aromatic components of real vanilla fruits. The orchid species "Leptotes bicolor" is used as a natural vanilla replacement in Paraguay and southern Brazil. In 1996 the US Food and Drug Administration cautioned that some vanilla products sold in Mexico were made from the cheaper tonka bean which as well as vanillin also contains the toxin coumarin. They advised consumers to always check the ingredients label and avoid suspicously cheap products. In the United States, castoreum, the exudate
Cuisine of the Southern United States called "chow"), a relish known as corn ketchup and fried green tomatoes; tomatoes are also used in tomato gravy, a variant of sausage gravy with a thinner, lighter roux. A variety of wild fruits like pawpaws, wild blackberries, and persimmons are also commonly available in Appalachia as well. Cuisine of the Southern United States The cuisine of the Southern United States developed in the traditionally defined American South, influenced by African, English, Scottish, Irish, French, Spanish, and Native American cuisines. Tidewater, Appalachian, Creole, Lowcountry, and Floribbean are examples of types of Southern cuisine. In recent history, elements of Southern cuisine