Powder-Detergent Formulations for Improved Cellulase Performance

摘要

Incorporation of fabric-care benefits through addition of cellulase enzymes to laundry products is gaining popularity among detergent formulators. They have determined that cellulase improves the fabric-care properties of their laundry products by removing fuzz and pills from the surface of garments. The for-mulation of cellulase with existing detergent ingredients can create complex interactions in the wash liquor which may influence enzyme performance. These enzyme-substrate interactions require optimization of the formulation to achieve the most compatible wash-liquor environment for the enzyme while maintaining fabric-care performance. Studies were conducted to determine the optimal detergent formulation which yields the best cellulase performance under typical wash conditions. Experimental design techniques and multivariate analyses were used to optimize the detergent formulation which yields the best cellulase performance under typical wash conditions. Experimental design techniques and multivariate analyses were used to optimize the detergent formulation for enzyme activity and performance. In a paper presented at the 38th wfk International Detergency Conference (May 1998), it was shown that cellulase enzyme performance is influenced by the detergent matrix. The paper also tested the hypothesis that different cellulases provide equal tensile strength loss at equal performance. In other words, two similar garments will suffer equal strength loss at equal depilling performance when treated with different cellulases. A series of application tests demonstrated that the relationship between tensile strength loss and depilling performance can be influenced dramatically by the detergent matrix. The purpose of this paper is to study the influence of major detergent components, surfactants, and builders, on the depilling performance of PURADAX~circleR HA (Genencor International. Inc., Rochester, NY) detergent cellulase. The goal of this investigation is a formulation in which PURADAX~circleR HA will offer the maximal depilling benefit.