Good Health and How We Won It, With an Account of the New HygieneSinclair, Upton
Science
Good Health and How We Won It, With an Account of the New Hygiene
Sinclair, Upton
Hygiene
An interesting experiment which showed the increase of anaerobes or
poison-forming germs in dead flesh, was that made with two chickens of
equal size, one of which was drawn, and the other undrawn. Both were
placed under the same conditions in a room the temperature of which was
maintained at 70° Fahrenheit. Bacterial cultures were made at frequent
intervals, with results as given in the following table, the figures
showing the number of bacteria per gram of moist material.
No. 11 Drawn No. 12 Not Drawn
Aerobes Anaerobes Aerobes Anaerobes
3 hrs after death 4,500 5,650 5,000 6,500
2d day 8,500 9,000 10,000 12,000
3d day 17,000 16,000 60,000 20,000
It must be remembered that these chickens were freshly killed, and
that the anaerobes had no such opportunity to increase as in ordinary
market beefs.
Specimens of several other kinds of meat were purchased in the market,
and at once taken to the laboratory for study. Cultures were made
immediately on reaching the laboratory, and again after the meat had
been allowed to stand (covered) at room temperature for twenty hours.
The following table shows the results of the bacterial counts:
BACTERIA PER GRAM (MOIST)
_Immediately after purchase_
Specimen Aerobes Anaerobes
No. 13 Large sausage 560,000,000 420,000,000
No. 14 Small sausage 834,400,000 663,000,000
No. 15 Round steak 420,000,000 560,000,000
No. 16 Roast beef 252,000,000 560,000,000
No. 17 Smoked ham 47,320,000 43,120,000
No. 18 Hamburger steak 138,000,000 129,000,000
No. 19 Pork 635,600,000 126,040,000
No. 20 Porterhouse steak 31,920,000 30,800,000
_After being kept at room temperature for twenty hours._
Specimen Aerobes Anaerobes
No. 13 Large sausage 770,000,000 490,000,000
No. 14 Small sausage 770,000,000 640,400,000
No. 15 Round steak 750,000,000 840,000,000
No. 16 Roast beef 728,000,000 750,000,000
No. 17 Smoked ham 616,000,000 750,000,000
No. 18 Hamburger steak 784,000,000 700,000,000
No. 19 Pork 952,000,000 1,036,000,000
No. 20 Porterhouse steak 336,000,000 700,000,000
These experiments were made in the winter time, when, because of
the diminished amount of dust in the air, germs are less abundant.
Even in the winter time, however, certain meat products simply swarm
with germs. A specimen of raw liver examined in January was found to
contain 269,800,000 bacteria per ounce or gram. Raw sausage contained
48,280,000 bacteria per ounce or gram.
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