and papermaking systems these organisms produced excessive amounts of slime which was easily isolated in pure form several enzymes and enzyme preparations were tested against model polysaccharides 3 ml of 2 mg ml klebsiella atcc 8308 polysaccharide solution or be measuring the time required for the meniscus of the treated sample to traverse between two reference points monitored over 24 hours and comparing that data to a control with no enzyme treatment a drop in viscosity over time by use of that enzyme treatment is shown table ii______________________________________percent reduction in viscosity percent reduction percent reductionenzyme used klebsiella pseudomonas______________________________________novozym 234 14 20 24 10 u03b1 glucosidase 8 52 not runspark l sup r 7 99 0 81sp 249 0 17 24 53______________________________________ legend novozym 234 nova biolabs multiple enzymes to attack u03b1 1 3 linkages u03b1 glucosidase sigma chemical co spark l sup r miles pectinase specific to galacturonic acid rhamnose xylose fucose arabinose and galactose sp 249 novo nordisk galacturonidase rhamnosidase xylosidase fucosidase arabinosidase galactosidase the above data indicate that these enzymes are breaking bonds within the polysaccharide chains klebsiella pneumoniae ipc 500 institute of paper chemistry and pseudomonas aeruginosa attc 10145 were allowed to grow and attach to stainless steel test surfaces in 1500 ml of test medium containing novozym 234 at concentrations between 2 and 200 ppm a test unit to which was added 200 ppm of heat.