An immobilized cellulase was prepared by the immobilization of cellulase with a complex of polymethacrylic acid and polyvinylpyridine for the use of transformation of cellulose to glucose. It has been found that the yield of glucose is affected by molecular weight of polymer support

pH value of solution

reaction temperature and so on. The immobilized cellulase was more stable than the soluble cellulase. It could be reused ten times and stored for 25 days without appreciable loss in catalytic activity.