The blue cheese mold, Penicillium roquefortii NRRL 844, was found to p
roduce a transfructosylating enzyme that exhibited optimal activity at
50 degrees C in the pH range of 5.0-6.0. The enzyme rapidly catalysed
the conversion of sucrose to a syrup containing nearly 60% fructo-oli
gosaccharides of the total sugars present.