The book On Fermentation was written by author Paul Schtzenberger Here you can read free online of On Fermentation book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is On Fermentation a good or bad book?
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), or at the usual pressure of the atmosphere, but at 1 10 C. (230 F. ), under a greater pressure, and he found that the flasks thus prepared, and hermetically sealed, could be kept for an indefinite time in the stove, without giving rise to the smallest production of mould or infusoria. The milk preserves its taste, its smell, and all its properties ; and the atmos- phere of the flask is only slightly modified in its com- position. (After forty days there were still found 18*37 volumes of oxyg...en per 100 parts of air. ) This difference between milk and urine, or sweetened yeast-water, must be attributed to the alkaline condition of the former medium, whereas the two others are acid. In fact, if we previously neutralize the acid of the sweetened yeast-water, by means of calcium carbonate, we obtain organisms under the same conditions of the experiment as those under which they were not before developed. These facts led M. Pasteur to make researches on the comparative action of temperature on the fecundity of ON THE ORIGIN OF FERMENTS.
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