Size of Protein Particles in Ultrahigh-Temperature Sterilized Milk as Related to Concentration

摘要: Summary Ultracentrifugation studies of milk sterilized by ultrahigh temperatures have shown that sedimentation constants increased. Sedimentation reconstituted concentrated milks showed immediately after concentration had approximately the same as preheating. Constants sterilization were much higher. This study was undertaken to determine relationship between and size particle at a given temperature. To minimize interference fat in determination constants, removed centrifugal separation raw 100° F. Preheating (180° F., 4.16sec.) (293° no hold) used been found cause minimum clustering protein particles. Portions preheated 3:1, 2:1, diluted one-third with deionized water. Logs sterile normal milks, when plotted against concentration, formed straight line which intersected zero axis log constant smallest micelle skimmilk, reported Ford Ramsdell (1). The can be expressed equation d 2 S = 18 η ρ − o