Izvorni znanstveni članak
Incidence of antibiotics and other antibacterial substances in milk collected for the market
Nataša Pintić
Ana Dakić
Franjo Poljak
Danijela Stručić
Vesna Tomše-Đuranec
Tatjana Jelen
Vinko Pintić
Sažetak
Incidence of antibiotics and other antibacterial substances in milk collected for the market was studied. Seven months long investigations were conducted at the Central Laboratory for Milk Control of the Croatian Livestock Centre and involved 107.840 samples, or an average of 15.405 samples per month. Samples were taken from the lactofreeze at milk collection centres.
The research goal was to determine the incidence of antibiotics and other antibacterial substances in milk, and point to the need of applying integral quality management for prevention of the presence of antibiotics in fresh farm milk in the light of the importance of milk and milk products in human nutrition. The said substances were detected in milk using the standard diffusion test (Delvotest MCS, DSM Food Specialties, The Netherlands), sensitive to antibacterial substances such as antibiotics, sulpha-residues and other substances, e.g. disinfectants, detergents, etc.
Samples in which the presence of residues was determined were submitted to a quick test which in less than seven minutes detects a wide range of beta-lactam residues (Delvo-X-PRESS® βL-II test of the same manufacturer).
Based on the obtained and analyzed results, significant differences at both levels of significance (P<0.01; P<0.05) were determined between the total detected residues, antibiotics and other antibacterial substances in milk.
The results point to a relatively strong linear correlation between the average number of samples per month positive to antibiotics and the number of registered samples with total residues (r=0.77).
Research results do not allow the conclusion on higher or lower levels of antibiotics in cow milk in dependence on the season; autumn, winter, early spring. Integral quality management should continue to be based on prevention of the presence of antibiotics in fresh milk delivered from farms.
Ključne riječi
cow milk; antibacterial substances; residues; quality management
Hrčak ID:
3657
URI
Datum izdavanja:
10.5.2006.
Posjeta: 3.911 *