Ektimisi tis mikroviakis piotitas tou ageladinou galaktos pou paragetai sto ktinotrofio tis A.G.S.A.
1987
Moschopoulou A. | Kalatzopoulos G.
The purpose of this study was to research the microbiological quality of the raw cow's milk, that is produced in the farm of the Agricultural College of Athens. From June 1984 until May 1985, 20 samples were examined. The results are the following: (1). 15% of the samples, were of a high standard (category A), 45% were of a low standard (category C) and the rest of the samples was of an intermediate standard (category B). Consequently this raw cow's milk was regarded to be of an intermediate quality. Also, positive correlation was found between total count of microorganisms and the test of Methylene blue. (2). The percentage of the lactic acid microorganisms was at least 45% of the total count. The microorganisms of this group that were identified were the following: Leuconostoc lactis, Leuc. dextranicum, Streptococcus lactis, Lactobacillus bulgaricus, Lact. acidophilus, Lact. casei subsp. rhamnosus and Lact. delbrueckii. (3). The coliform count was quite significant. About half of the samples contained more than 10.000 coliforms per ml. This fact shows that the milk was contaminated from faeces, water, mud e.t.c. The microorganisms that were identified were the following: Klebsiella sp. Serratia sp. Enterobacter sp and Shigella. (4). The percentage of the non-lactic acid streptococci was about 5% of the total count. The microorganisms of this group that were identified were Streptococcus faecium and Str. faecalis, which occur along with starter organisms. (5). The following psychrotrophic microorganisms were also identifield: Pseudomonas vesicularis, Chromobacterium violaceum, Flavobacterium sp. Alcaligenes faecalis. (6). A very small number of yeast was found and no spore forming microorganisms were found.
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