MONTIEL, X.; CARRUYO, I.; FERRER, J.; MARCANO, L.; MÁRMOL, Z.; PÁEZ, G. Production of β-D-galactosidase from Kluyveromyces fragilis in batch cultures with cheese whey as substrate. Rev. Téc. Fac. Ing. Univ. Zulia, v. 23, n. 2, 11.