Add to favorite
 
123
Subscribe to our Newsletters Subscribe to our Newsletters Get Daily Updates RSS


Is Your Milk Safe to Drink?
October 14, 2010 22:21


Russian biologists have developed testing systems for quick measuring antibiotic concentration in various milk products. New testing systems, based upon immuno-assay technologies, are highly sensitive and specific.

Antibiotics have become an integral part of modern livestock farming. These chemical substances are used for preventing and treatment of various infectious and parasitic diseases, for growth stimulation and etc, and that is why antibiotics can be found in almost all products of animal origin, including meat ant milk.

When antibiotics enter human organism, they may be the cause of many health disorders, like so-called dysbacteriosis (imbalance of proper microbial fauna of an organism) or allergies. Presence of antibiotics in milk can be a serious problem for production of various cultured dairy products. Antibiotics, when used without a serious reason, can promote formation of drug-resistance in microorganisms. Many countries of the world, including Russia, have special regulations for antibiotic concentration in food products, thus content of these substances in food should be under stiff control.

Institute of Vaccines and Serums suggest measuring antibiotic concentration in milk by means of immuno-assay technology. The technique is based upon an immunological response of a tested substance and an antibody, specific to this substance Moreover, the technique can not only say whether tested substance is present in milk or not, it can also measure its concentration. Scientists synthesized specific antibodies to various antibiotics and developed testing systems for following eight antimicrobial agents: laevomycetin, cortin, bacitracin, enrofloxacin, ciprofloxacin, gentamicin, neomycin, and kanamycin.

 

 

Testing systems, described above, were used for testing 106 samples of milk and cream of both domestic and foreign origin and fat content between 0.1% up to 35%. Tests revealed that fat content had no effect on analysis results, and that is why no specific sample preparation is required for this analysis. Moreover, antibiotic concentration can be measured both in raw (unpasteurized) milk and in boiled milk.

New testing systems appeared to be very useful, because a large number of milk samples has shown positive reaction on antibiotics, and concentration of these chemical substances was often above permissible level.

An antibiotic, most often detected in milk and cream, is called tetracycline, and every fourth sample of milk and cream contained impermissible concentration of this antibiotic. Some samples contained a combination of various antibiotic agents, and researchers worry that in this case their cumulative effect would be negative, even if concentrations of separate antibiotics do stay within permissible limits.

Russian scientists believe that they have created a convenient technique for testing quality of milk products. Immuno-assay technologies proved to be effective, sensitive and able to detect individual antibiotic agents in the presence or absence of other antimicrobial products.

Source:
      Science News

Kizilova Anna


Tags: Russian Scientists     

Next Previous

You might also find interesting:

Russian Biophysicist to Personally Test his Rejuvenation Technology How Blood Moves in Our Lungs What You Should Know About Sweeteners Willem Barentsz Ship Remains Discovered Near Arkhangelsk Flax Chromosome Structure Deciphered









Comment on our site


RSS   twitter      submit



TAGS:
Russian business  Exhibitions in Moscow  Russian cuisine  nuclear energy  EU visas for Russians  Russian economy  Rosneft  Alexander Mayorov  Archeology  Exhibition Fairs  Patriotism  St. Petersburg  Moscow  St. Petersburg Parks   Sochi 2014  Martial Arts  Russian opera  Sculpture  Soviet Union  TNK-BP  Graphic Art  Birchbark Handicrafts  The Alley of Russia  #S7selfie  Mikhail Prokhorov  investment  Russian ballet dancers  Yakutia  Legal Services in Russia  Russian Wood Painting  Circus Shows  Spring Ball  Sots Art  Stalinist Regime  Russian Cinema  Russian tourism  Petroglyphs  Arctics   Mercedes-Benz Fashion Week Russia  Russian scientists  Visa   human rights in Russia  hockey  Zaryadye  Russian Folklore  Russian science  Alagir  Alisher Usmanov  Alexey Skurlatov  Museum of Russian Impressionism 


Travel Blogs
Top Traveling Sites