. Ciba Foundation conferences on istopes in biochemistry;. Radioactive tracers in biochemistry; Isotopes -- Physiological effect. 104 HOLLAENDER, StAPLETON AND BURNETT t rat ions (see Fig. 7). Moreover, sodium hydrosulphite affords some protection in nitrogen-saturated suspensions. This compound appears to protect by depletion of oxygen from the suspensions, possibly by removing bound oxygen from wo- 400- o 3O0- o > w $200- 3 100-. ETHANOL 2' -| 1 T- 0,2 03 04 MOLAR CONCENTRATION —r- 06 Fig. 6. Relative survival of E. coli in different concentrations of ethyl alcohol at 2»C. and 37«C. Stapl
. Ciba Foundation conferences on istopes in biochemistry;. Radioactive tracers in biochemistry; Isotopes -- Physiological effect. 104 HOLLAENDER, StAPLETON AND BURNETT t rat ions (see Fig. 7). Moreover, sodium hydrosulphite affords some protection in nitrogen-saturated suspensions. This compound appears to protect by depletion of oxygen from the suspensions, possibly by removing bound oxygen from wo- 400- o 3O0- o > w $200- 3 100-. ETHANOL 2' -| 1 T- 0,2 03 04 MOLAR CONCENTRATION —r- 06 Fig. 6. Relative survival of E. coli in different concentrations of ethyl alcohol at 2»C. and 37«C. Stapleton, Billen and Hollaender (in preparation). the bacterial cells (Morse, Burnett, Burke, and Hollaender, in preparation). Some of the carboxylic acids which are normal metabolic intermediates or end products have also proved to afford excellent protection to bacterial cells, but again, under rather restricted conditions. A short incubation period for the cells in the presence of the acids produces a striking increase in i. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ciba Foundation. Philadelphia, Blakiston
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