Research Article

Lactose Hydrolysis in Milk and Dairy Whey Using Microbial β-Galactosidases

Table 3

Efficiency of whey permeate lactose hydrolysis using A. oryzae and K. lactis β-galactosidases in 3, 6, and 9 U/mL concentrations and 2 h of reaction.

Enzyme conc. (U/mL)Aspergillus oryzaeKluyveromyces lactis
10°C 55°C 10°C 37°C
(g/L) (%) (g/L) (%) (g/L) (%) (g/L) (%)

32.8210.728.4232.007.7029.2613.2850.46
64.9318.7411.3843.2412.3146.7816.4662.54
94.9618.8413.3550.7414.3854.6418.2769.42

Means with different superscripts in the same column are significantly different, according to Tukey test ().