Affiliation:
1. Food Laboratory, U. S. Army Natick Laboratories, Natick, Massachusetts 01760
Abstract
The initial bacteriological requirement established in 1964 for space foods by the U.S. Army Natick Laboratories are: a total aerobic plate count (≤ 10,000 per g), a total coliform count (≤ 10 per g), fecal coliforms (negative per gram), fecal streptococci (≤ 20 per g), coagulase-positive staphylococci (negative in 5 g) and salmonellae (negative in 10 g). Of the space foods and prototypes tested during 1968 and 1969, 93% complied with the total aerobic plate count, 98% had less than 1 coliform per g, and 99% were negative for fecal coliforms; 88% complied with the streptococci requirement; 100 and 98% were negative for staphylococci and salmonellae, respectively. Nineteen food samples which did not comply (as indicated parenthetically by actual counts per gram) with the requirements were (i) total aerobic plate count: beef soup and gravy base (18,000), chicken soup and gravy base (57,000), spaghetti with meat sauce (12,100 and 14,000), sugared coffee (> 300,000), chocolate ice cream cubes (20,000), and each of four samples of chocolate candy (12,000 to 61,000); (ii) coliforms: two out of three vanilla milk drinks (16 and 127) and one beef hash bar (14); (iii) fecal coliforms: one sample of chicken soup and gravy base positive; (iv) fecal streptococci: two samples of peanut cubes (40 and 108), coconut cubes (75), chicken soup and gravy base (2,650), beef soup and gravy base (33), and five out of six flavored milk drinks (23 to 300); (v) salmonellae: one each of chicken and beef soup and gravy base were positive.
Publisher
American Society for Microbiology
Subject
General Pharmacology, Toxicology and Pharmaceutics,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine
Reference16 articles.
1. American Public Health Association. 1966. Recommended methods for the microbiological examination of foods 2nd edition. American Public Health Association New York.
2. Association of Official Analytical Chemists. 1970. Official methods of analysis 11th ed. Association of Official Analytical Chemists Washington D. C.
3. Susceptibility to infection as influenced by acclimatization to altitude and Krebs cycle inhibitors and intermediates;Berry L. J.;J. Infec. Dis.,1956
4. Altitude stress: its effect on tissue citrate and salmonellosis in mice;Berry L. J.;Proc. Soc. Exp. Biol. Med.,1957
5. Effect of cortisone on protein loss and carbohydrate gain in normal and simulated altitude-exposed mice;Berry L. J.;Amer. J. Physiol.,1960
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