P. F. Bonventre and L. L. Kempe
نویسنده
چکیده
A study was made pertaining to the variations in sensitivity to inhibitors that may be encountered in industrial deterioration problems. The results indicate that at least three types of variations are involved: first, the variation in sensitivity of different strains, secondly, the variation in sensitivity of an individual strain, and finally, the variation produced by the particular environment in which the inhibitor is studied.
منابع مشابه
Physiology of toxin production by Clostridium botulinum types A and B. II. Effect of carbohydrate source on growth, autolysis, and toxin production.
A study was made pertaining to the variations in sensitivity to inhibitors that may be encountered in industrial deterioration problems. The results indicate that at least three types of variations are involved: first, the variation in sensitivity of different strains, secondly, the variation in sensitivity of an individual strain, and finally, the variation produced by the particular environme...
متن کاملPhysiology of toxin production by Clostridium botulinum types A and B. IV. Activation of the toxin.
Kindler et al. (1956) reported that a strain of Clostridium parabotulinum type A synthesized large quantities of toxin in a medium where cell multiplication was inhibited by high concentrations of penicillin. This interpretation of synthesis de novo of protein was based on the observations that the toxicity of the extracellular fluids increased in the absence of cell multiplication. It is a wel...
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HARRIS, R. J. C. 1954 Biological applications of freezing and drying. Academic Press, Inc., New York, New York. HECKLY, R. J. 1955 Rapid and precise measurement of moisture in biological materials. Science, 122, 760-761. MERYMAN, H. T. 1956 Mechanics of freezing in living tissues. Science, 124, 515-521. MILES, A. A., MISRA, S. S., AND IRWIN, J. 0. 1938 The estimation of bactericidal power of th...
متن کاملPhysiology of toxin production by Clostridium botulinum types A and B. III. Effect of pH and temperature during incubation on growth, autolysis. and toxin production.
and inositol was no greater than in the control medium which contained no added carbohydrate. Growth and toxin synthesis by strain JDT-I1V, which may be taken as representative for all the strains tested, are presented graphically in figure 1 and 2, respectively. Although equal growth rates were observed during the exponential growth phase with all the carbohydrates, maximum growth was achieved...
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The quantity of ionizing radiations needed to sterilize canned foods generally impairs both their nutritive qualities and palatability (Hannan, 1955; Schultz et al., 1956). However, thermal processes also lower these qualities in canned foods (Stumbo, 1949). In both instances, the extent of damage increases with the severity of the treatments. Consequently, the heat processing schedules that ar...
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