“…Production, purification and immobilization Kilara, Shahani & Wagner (1977), Pitcher, Ford & Weetall (1976) and Ohmiya et al (1977) examined the preparation and characterization of immobilized ,a-galactosidase systems; the latter group immobilized whole microbial cells in polyacrylamide gels. Stanley et al (1975), Liu et al (1975), Ngo, Narinesingh & Laidler (1976 and Brandt, Wang & Leeder (1976) immobilized ,a-galactosidase on chitin, carbon, nylon and collagen respectively.…”