Rodionova K. Sanitary-hygienic assessment and disinfection of the objects veterinary supervision at meat processing enterprises.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0418U002375

Applicant for

Specialization

  • 16.00.06 - Гігієна тварин та ветеринарна санітарія

26-04-2018

Specialized Academic Board

К 64.070.01

Essay

In the system of measures providing veterinary and sanitary welfare at meat processing enterprises, crucial point is timely and qualitative providing a complex of special measures, among which the most important place belongs to the stuff disinfection and hygiene. Currently, among a large number of disinfectants, there is a shortage of those, are allowed being used in the food industry. Therefore, the search for effective biocidal detergents for preventive disinfection and the development regimes of their use in meat processing enterprises today is a very topical item. The purpose of work was to carry out sanitary-hygienic assessment of veterinary control objects and to improve of preventive disinfection regimes at meat processing enterprises. Based on bacteriological studies, we have studied microbial contamination of beef and poultry carcasses during the slaughter process and processing. It was found that on the beef carcass surfaces is observed the increase amount of MAFAnM and bacteria of Enterobacteriaceae family during the slaughter process, from the skin removing process to the final carcasses toilet. The direct dependence on the microbial background of beef carcasses and half-carcasses to the duration work of the slaughter shop was established. It has been сonfirmed that the microbial contamination of meat products depends on the veterinary and sanitary condition of the premises, technological equipments, working tools, air, water quality and hygiene of the working staff. It has been determined that the use of closed-type units (recirculators) during working hours, with additional use of bactericidal lamps DB-30-1 for 30 minutes before the beginning of working process in production workshops, makes possible to reduce the total microorganisms number to 67,25 % in the air and the amount of mold and yeast to 7,3 %. The use of the unit for permanent water softener WSA Twin 1865S/175 (Ukraine) has given the possibility to reduce the water hardness to 4 mg/dm3. Experimentally it has been proved that the use of the drug “СD-256” at 0,3 % concentration for 60 minutes exposure and the agent “DZPT-2” at 0,5 % concentration for 120 minutes exposure decontaminates surfaces which are made of various materials (concrete, wood, tile, metal, plastic, glass). It has been determined that the use of “Anti-Jeremy SR S 25” detergent at 2,0 % concentration for 30 minutes exposure provides high-quality cleaning of technological equipment and industrial premises. As a result of the studies, the effectiveness of the ozone application in the “Ozonot” box for the knives disinfection at 7,0 mg/m3 concentration and 45 minutes exposure during the preliminary degreasing of the instruments with the use of detergent “Gigazyme” at 1,0 % concentration for 1 minute at the temperature of 22±2,0 0С has been determined. It has been established that the use of “Sanitelle”, “BacterioSol” and “Anavidin-Exprof” for antiseptic hand processing reduces the level of total microflora to 99,79 %, 99,78 % and 99,64 % correspondingly. It has been established that the use of the drug “P3-oxonia active 150” at 0,03 % concentration for 30 minutes exposure contributes to the reduction of microbial contamination of poultry carcasses during their processing and provides the microbiological stability of the product for 9 days. The results of experimental studies widen substantially the arsenal of modern antimicrobial agents that can be used in the meat processing industry. The system veterinary and sanitary measures at meat processing enterprises, which ensures the receipt of safe and high-quality products of animal origin has been developed, according to own research results. Introduction in the production of a system of veterinary and sanitary measures will allow to increase the size of the annual economic effect of the processing enterprise with an annual capacity of 6.4 million tons of meat products by UAH 30.3 million, or to obtain an additional UAH 4.75 for every kilogram of meat.

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