to provide a holding time of 15 s at 80 or 92C, respectively. The processed milk was then cooled immediately in a 0.5 cm2.0 m coil of Teflon TM tubing immersed in an ice/water bath. Samples were taken for analysis during the steady-state conditions, achieved after 10 min (Lo pez-FandinÄ o et al., 1996).