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Glucoamylase was immobilized on polyethylenimine (PEI)-coated cotton cloth by adsorption followed by cross-linking with 0.2% glutaraldehyde in the presence of starch. Optimal adsorption of the enzyme was seen when cloth treated with 2% PEI was contacted with the enzyme for 50 min. pH and temperature optima profiles were not changed appreciably on immobilization. However, the bound enzyme exhibited...
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