Research Article

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

Table 2

Efficiency of cheese whey 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) (%)

31.345.106.4324.4411.5844.0019.7374.98
62.047.769.0434.3615.6159.3218.9972.16
93.1211.8611.6844.3816.2561.7618.5170.34

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