نتایج جستجو برای: water and milk samples
تعداد نتایج: 16962646 فیلتر نتایج به سال:
Introduction: Milk is one of the most complete food products that is effective in reducing blood pressure and increasing its beneficial fats, preventing colon cancer and osteoporosis, and providing many nutrients, such as protein and calcium. Therefore, the contamination of this valuable foodstuff and its products is considered as a serious risk to the public health of the community. Aflatoxin ...
background and objectives: staphylococcal food poisoning is a gastrointestinal disease, which is caused by consumption of contaminated food with enterotoxins produced by staphylococcus aureus (ses). milk and its products are known sources of food borne diseases. this study was carried out to evaluate the prevalence of enterotoxigenic s. aureus strains in organic milk and cheese in tabriz - iran...
Background: It is known that Aflatoxin M1 (AFM1) contamination in milk can have carcinogenic, teratogenic, and mutagenic activities especially in liver for both children and adults. The main aim of this survey was to investigate the incidence of AFM1 in human and cow milk in Kashan, Iran. Methods: A total of 42 breast milk samples were collected from a central hospital in Kashan city during 3-...
tetracyclines (tcs) are broad-spectrum antibiotics that are used widely in veterinary medicine. the present study was carried out to trace the residues of oxytetracycline (otc) and tetracycline (tc) in pasteurized milk that is marketed in tehran with the use of a high performance liquid chromatography (hplc). ninety milk samples were collected during five sequential days from the products of si...
background: bisphenol a (bpa) is one of the hazardous materials causing disruption of endocrine pathways. due to water contamination by this component from multiple sources and the associated health problems, bpa has been the focus of multiple studies. it has been proved that bpa may cause harm because of its impact on estrogenic receptors in human and other organisms. methods: in this study, t...
coxiella burnetii is the causative agent of the zoonotic disease q fever, and ruminants being considered as the main source for human infection. although the main route of infection in human is inhalation of contaminated aerosols, oral transmission by contaminated raw milk or unpasteurized dairy products is also a possible route of infection. raw milk or dairy products produced from unpasteuriz...
backgrounds and aims: healthy milk and dairy products are important in human nutrition because of the high value of the food. contaminated raw milk is the mainly way of transmition of brucellosis to humans.unpasteurized milk and dairy products can contagion to human and cause mallta fever. so brucellosis is an important zoonotic disease in human and animals especially domestic animals. the aim...
Background: Some microorganisms can adhere to food handling surfaces forming biofilms that pose a safety challenge. This study was done to evaluate bacterial biofilm formation in milking equipments in Lilongwe, Malawi. Methods: Pooled milk (n=54) and water (n=60) samples were collected from households and milk bulking groups in Lilongwe, Malawi. Swabbing (n=46) and rinsing (n=16) were done on ...
A simple and rapid microextraction procedure based on dispersive liquid-liquid microextraction (DLLME) was developed for determination and speciation of trace amounts of chromium (Cr) by flame atomic absorption spectrometry (FAAS). In the proposed approach, chloroform and methanol were used as extraction and dispersive solvents. A new Schiff's base ligand, bis(2-methoxy benzaldehyde) ethylene d...
The aim of this study was to determine the suitability of different doses (0, 0.4, 0.8 and 1.2%) of coffee extract on fermentation and survival of Lactobacillus acidophilus and Bifidobacterium bifidum in milk and yoghurt. The produced samples were examined in terms of pH, acidity and microbial count during incubation period and permanence. The number of Lactobacillus acidophilus and Bifidobacte...
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