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Microbial quality and associated health risks of raw milk marketed in the Tanga region of Tanzania

Asian Pacific Journal of Tropical Biomedicine 2011年第3期1卷 217-222页

作者： Swai ES Schoonman L Veterinary Investigation Centre(VIC) Tanga Dairy Trust(TADAT)

Objective:To evaluate micmbial quality and associated health risks of raw milk marketed in the Tanga region of ***:A microbial quality assessment of marketed raw milk was undertaken by evaluating 59 samples of milk from selling points(collecting centres =15),bicycle boys(12) and kiosks/restaurants(32) in Tanga city during April-May *** and milkborne hazards were assessed using a combination of tests in order to quantify the occurrence of Brucellosis(milk ring test),Escherichia coli(***) O157:H7(culture),the coliforra bacteria as well as standard plate count(SPC).Specific gravity(SG) determination was used as an indicator of ***:The mean coliform plate count(c.f.u/mL) of milk handled by bicycle boys(4.2×10~6) was significantly higher than that handled by collecting centres(3.0×10~6) and kiosk/ restaurants(1.4× 10~6),respectively(P milk samples collected,33(56%) were Brucella milk ring test(MRT)-positive and 78%and 17%of the samples graded satisfactorily based on SG and coliform plate counts as prescribed by East African Community standards for raw *** was no verocytotoxigenic ***(VTEC) O157:H7 in any of the milk samples collected and analysed during the present ***:It can be concluded that raw market milk in the study area is of poor bacteriological quality and hazardous for human consumption. This highlights the need to implement good hygiene practices and effective monitoring from production through the delivery chain to the *** studies are needed for detection of toxins that are produced by ***,other pathogenic spore forming bacteria(Bacillus *** Clostridium spp.) and other harmful microorganisms.

关键词： Contamination Health risks Microbial quality Whole raw milk Tanga Tanzania Microorganism milk-borne hazard Escherichia coli Brucellosis Clostridium Bacteriological quality

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