. Bacteriological methods in food and drug laboratories, with an introduction to micro-analytical methods. Bacteriology; Food; Drug adulteration; Bacteriology. 2o6 BACTERIOLOGICAL METHODS once gained access to the syrup they are not easily exterminated. This emphasizes the importance of great care and cleanliness in the preparation of all syrups. It is also a fact that high con- centrates of sugar are not so liable to be attacked as are the weaker solutions. The most favorable strength of sugar solution. Fig. 68.—Bacillus californiensis isolated from the roots of the sugar beet. A typical gum
. Bacteriological methods in food and drug laboratories, with an introduction to micro-analytical methods. Bacteriology; Food; Drug adulteration; Bacteriology. 2o6 BACTERIOLOGICAL METHODS once gained access to the syrup they are not easily exterminated. This emphasizes the importance of great care and cleanliness in the preparation of all syrups. It is also a fact that high con- centrates of sugar are not so liable to be attacked as are the weaker solutions. The most favorable strength of sugar solution. Fig. 68.—Bacillus californiensis isolated from the roots of the sugar beet. A typical gum former found in the soil, on the roots and in the surface tissues of the sugar beet and in the juice of the sugar beet, a, Beet root cells showing a mixture of cell plasm and B. californiensis (mycoplasm); b, epidermal cells of the root show- ing bacteria within the cell and also on the exterior; c, a bit of mycoplasm removed from the cell by pressure; d, B. californiensis removed from the cells by pressure; e, B. californiensis from a pure culture in beet root gelatin; /, zoogloea form of B. col.; g, gelatinized form of B. cal.; i, a single chain highly magnified (X 450 to 1000). is about 20 per cent. Development may, however, take place in 60 per cent, solutions. The organisms are facultatively anaerobic and their growth is greatly accentuated by free aeration. Com- pletely rilling the containers will materially check and even completely prevent the growth of the 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 Schneider, Albert, 1863-1928. Philadelphia, P. Blakiston's Son & Co
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectfood, bookyear1915
