Fromthe eight enzymes included in the study, the substances Savinase,
Esperase, Properase L and PurafectL werefoundto be comparableto the 0.5%
NaOHas regardsscaling-offof the foulingfromthe test couponsaftera 45-
minute cleaningaction. Flavourzymeshowed no effectat all. Withthe enzyme
Neutrase only3±6%of the test foulingcouldbe scaledoff, whilewiththe
Fig. 32.3 The influenceof pH on depositremovalwith0.05%Purafect40.000L’.Fig. 32.4 The influenceof pH on depositremovalwithAlcalase’.Enzymatic cleaning in foodprocessing 527