From: Preliminary investigations on a polygalacturonase from Aspergillus fumigatus in Chinese Pu’er tea fermentation
Potency index (D p/D c)
Number of isolates
D p/D c > 3.5
7
3.5 > D p/D c > 2.0
58
2.0 > D p/D c
78
D p/D c = 0
57