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
Renfe Feve by FEVE before it disappeared were located along or near Spain's Atlantic Ocean and Bay of Biscay coastline, which stretches from Galicia in the northwest, through Asturias and Cantabria to the Basque Country (with a branch extending into Castile and León). Together they formed a large and strategically important system, which was why – unlike the other, more isolated regional railways – they have been retained under the integrated management of FEVE. FEVE operated of track, of which were electrified. An exclusive tourist service operated by FEVE is a long line, the "Transcantábrico", which runs along the entire length of