Die Absterbeordnung der Bakterien und ihre Bedeutung für Theorie und Praxis der Desinfektion

Factors Affecting the Heat Resistance of Nonsporing Organisms

“…This assumption represents a viewpoint of the mechanism of death which is radically different from those used to explain curves A and B. Because of the frequency with which curves of type C occur it has been suggested that survivor curves-even when they are straight (type A) or convex (type B)-are determined by a non-uniform distribution of heat resistance among the individual cells (Reichenbach, 1911 ;Precht et al, 1955;Vas & Proszt, 1957).…”

Factors Determining the Rate of Mortality of Bacteria Exposed to Alkalinity and Heat

“…It has been noted that most students of disinfection have recognized the generally logarithmic course of the reduction in living cells (Madsen and Nyman (1907); Chick (1908); Chick and Martin (1908); Hewlett (1909); Chick (1910); Chick (1912); Paul (1909); Paul, Birstein and Reuss (1910);Phelps (1911); Reichenbach (1911 and; Robertson (1914); Hinds (1915); Lee and Gilbert (1918); Cohen (1922); Gates (1929); Bancroft and Richter (1931)). Most of the workers cited have assumed that the regularity of this reduction was due to fundamental chemical or physical factors which involved some basic proces analogous to a monomolecular reaction.…”

“…Certain of these investigators, and others, have pointed out that the ideal curve of logarithmic decrease is by no means always completely realized. In certain cases, there may be marked deviations from the logarithmic curve, particularly at the beginning and end of the process (Chick (1908 and; Eijkman (1908Eijkman ( , 1909Eijkman ( and 1912; Reichenbach (1911 and; Brooks (1918); Smith (1921); Gates (1929); Knaysi (1930aKnaysi ( , 1930bKnaysi ( and 1930c; Knaysi and Gordon (1930)). In general, these workers observed curves of a sigmoid shape, involving a diminished rate of reduction toward the end of exposure and tended to explain the observed phenomena by biological variability in the exposed cells.…”

Influence of Time and Temperature of Incubation on Heat Resistance of Escherichia coli

“…Numerous investigators including Reichenbach (1911), Schultz and Ritz (1910), Albus (1923,1924), Behrens (1923), Huckel (1926), Qrskov (1925, Dardnyi (1927), Gates (1929, Jensen (1928), Robertson (1927Robertson ( , 1928, Stark and Stark (1929, a, b), Sherman and Stark (1929), Fabian and Coulter (1930), Hammer and Hussong (1931), Frazier and Wing (1931), Heiberg (1932), Dorner andThoni (1936), and Claydon (1937) have demonstrated by various methods that young cells are far more susceptible to adverse environmental influences than are older, more mature bacterial cells.…”