Lipase activity in the milk was significantly (P < 0.001) reduced by increasing homogenization temperature (Fig- ure 1). No effect of homogenization pressure was ob- served. During the incubation after homogenization, the lipase activity significantly (P < 0.001) decreased, how- ever the greatest incubation time effect was found in milk homogenized and incubated at 50˚C. The results clearly show that homogenization pressure alone does not affect lipase activity. The homogenization temperature and the following similar incubation temperature have an impact, as the enzyme is sensitive to heat treatment even at 50˚C [5]. The lipoprotein lipase is mainly associated to the casein fraction in fresh warm milk, but adhering to the milk fat globules during cooling [4]. At higher homog- enization temperatures, casein micelles spread more rap- idly over the fat-water interface which causes a lower surface excess of protein [1]. This distribution and con- figuration factor could also have some effect on the LPL activity. Likewise, a two-stage high pressure homogeni- zation (200 MPa) has shown a decrease in lipase activity when homogenization temperature increases