The University of Basque Country Gluten Analysis Laboratory has worked on the analysis of gluten since 1998. Researchers have participated in collaborative trials designed to validate kits for gluten determination based on ELISA techniques (Ingenasa, Biopharm and Leiden University Medical Center) and those of other laboratories. The lab received ISO 17025 accreditation for gluten analysis in foods, additives and parapharmacy products in 2009. In 2014 the lab extended its detection range, and as of now is the only laboratory in Spain with ISO 17025 accreditation for gluten determination in complex food matrices (hydrolyzed or fermented foods).