Study was by Dariusz Stepniak, Liesbeth Spaenij-Dekking, Cristina Mitea, Martine Moester, Arnoud de Ru, Renee Baak-Pablo, Peter van Frits and Veelen Koning of Leiden University Medical Center, the Netherlands, and Luppo Edens of DSM Meals Specialties, Delft. The new prolyl endoprotease that was studied is derived from Aspergillus niger , a common fungus. Strains of A. Niger are used in industrial production of citric and gluconic acid and also producing several food quality enzymes.About Avella Specialty Pharmacy Headquartered in Phoenix, Arizona, Avella Specialty Pharmacy is normally a National Accredited Specialty Pharmacy, offering individualized care and attention and support to patients since 1996. Avella's clinical pharmacists and workers are professionals in managing complicated disease claims and providing compassionate care and attention. The company presents a nationwide distribution program to check its retail locations. Avella reached 1,772th on Inc. Magazine's 2014 set of the 5,000 fastest-growing personal companies in the united states.