“…Stepniak et al (2006) have identified a prolyl endopeptidase from Aspergillus niger that is able to degrade T-cell stimulatory peptides in vitro. It is also suspected that caricain, which contains endopeptidases, can achieve detoxification by digestion of immunoactive fragments of gluten (Cornell & Stelmasiak, 2007, 2012.…”