title: Activity of immobilized alpha-amylase.
abstract: 1. alpha-Amylase immobilized on polyamide 11 showed higher specific activity and retention of activity than the derivatives employing polyacrylamide and polyethyleneterephthalate as supports. 2. Polyamide 11 and polyethyleneterephthalate alpha-amylase derivatives exhibited a higher extent of multiple attacks on starch than the water-soluble enzyme whereas the polyacrylamide derivative presented less. 3. The polyamide 11 alpha-amylase derivative acted on amylose-azure in the same way as the water-soluble alpha-amylase.
authors.affiliation: Departamento de Bioquímica, Universidade Federal de Permambuco, Recife, PE, Brasil.
authors.forename: L B
authors.initials: LB
authors.lastname: Carvalho Júnior
authors.forename: M P
authors.initials: MP
authors.lastname: Silva
authors.forename: E H
authors.initials: EH
authors.lastname: Melo
mesh_terms: D000688:Amylose; D004800:Enzymes, Immobilized / Q000378:metabolism*; D006868:Hydrolysis; D009757:Nylons; D011093:Polyethylene Terephthalates; D000516:alpha-Amylases / Q000378:metabolism*
chemical_list: D004800:Enzymes, Immobilized; D009757:Nylons; D011093:Polyethylene Terephthalates; D000688:Amylose; D000516:alpha-Amylases