Viscosity decrease of apple (A) and blueberry (B) juices after treatment with pectinolytic preparations at 40 and 50 C for 60 min. Different letters (aec) indicate significant
differences (p < 0.05). The values correspond to the mean of three tests. PC, PectinexClear; PB, PectinexBE Color; EE, enzyme extract produced by Aspergillus niger LB23.