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Problems with detection of proteolytic microorganisms and their undesirable activities in milk
proteolysis spoilage risk assessment cultivation method
2014/3/10
Occurrence of proteolytic enzymes in milk is often associated with technological problems and sensory, rheological and functional defects of final dairy products. Thus, the simple, cost-effective and ...
Detection of Specific Sugars in Dairy Process Samples Using Multivariate Curve Resolution
lactose hydrolysis multivariate curve resolution process control reference-independent estimation
2008/3/28
Dairy process monitoring by application of multivariate curve resolution using alternating least squares is presented. Alternating least squares was used for resolving Fourier transform infrared spect...
A Novel Method for the Detection of Protease and the Development of Extracellular Protease in Early Growth Stages of Lactobacillus delbrueckii ssp. bulgaricus
extracellular protease Lactobacillus delbrueckii ssp. bulgaricus lactic acid bacteria microplate
2008/3/28
A novel method of rapid detection using microplate wells with casein and calcium ions was developed for measuring protease activity. This new method is based on the theory that the hydrolysis by the p...
Determination of the Marker Residue of Albendazole in Cheese by Ion-Pair Liquid Chromatography and Fluorescence Detection
albendazole residues cheese liquid chromatography fluorescence detection
2008/3/28
A liquid chromatographic method is described that allows quantitative determination of the marker residue of albendazole in cheese. Samples were extracted with acetonitrile, and the extracts were defa...
Detection of Adulteration of Buttermilk Powder by Gel Electrophoresis
buttermilk powder fat globule membrane proteins nonfat dry milk whey
2008/3/22
Six commercial samples sold as buttermilk powder were compared with an authentic sample by SDS-PAGE, using either large gels (13.5 x 18 x .3 cm) with a manual system or precast miniature gels (4.3 x 5...
Detection of Penicillin G in Milk Using a Conductimetric Method
milk penicillin G conductance Bacillus stearuthennophilus
2008/3/22
A highly sensitive method was developed that used conductance measurement for the detection of penicillin G in milk. The method is based on the inhibition by the antibiotic on the growth of Bacillus s...
Quaternary Ammonium Compounds in Milk: Detection by Reverse-Phase High Performance Liquid Chromatography and Their Effect on Starter Growth
quaternary ammonium sanitizers starter activity high performance liquid chromatography determination
2008/3/22
A reverse-phase HPLC method is described that permits detection of quaternary ammonium sanitizers in milk. The commercial mixture of quaternary ammonium sanitizer used, n-alkyl (50% C14, 40% C12, and ...
Development and Evaluation of a Minicolumn Assay for the Detection of Aflatoxin M1 in Milk
aflatoxin M1 milk detection minicolumn assay
2008/3/22
A practical field method for the chemiselective immobilization and detection of aflatoxin M1 in milk has been developed and is being marketed. In this new method, aflatoxin M1 is selectively adsorbed ...
Extraction and Detection of Sulfamethazine in Spray-Dried Milk
drug residues milk powder sulfamethazine supercritical fluid extraction
2008/3/19
Processes that reduce moisture content of fluid milk may result in a high concentration of animal drug residues that are undetectable in the fluid milk on the basis of the same weights. The objectives...
PCR-based detection of cow is milk in goat and sheep cheeses marketed in the Czech Republic
polymerase chain reaction cow is milk goat cheese sheep cheese
2014/3/17
A method based on the polymerase chain reaction (PCR) principle was validated for detecting cow’s milk in goat and sheep cheeses. DNA was isolated from the cheeses using the isolation kit Invisorb Spi...