نتایج جستجو برای: microbiological methods
تعداد نتایج: 1890272 فیلتر نتایج به سال:
power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...
the purpose of this study was to investigate the therapeutic effects of propolis on biochemical and microbiological parameters in muscle tissues of carp (cyprinus carpio, linnaeus 1758) exposed to arsenic. a sublethal concentration of arsenic (0.01 ppm) and/or 0.01 ppm propolis were administered to fish for seven days. biochemical parameters [ph, lactic acid, total volatile basic nitrogen (tvb-...
background & aims of the study: wheat flour makes the basic component of bread. thus, evaluating its quality plays an important role in public health. this paper focused on the physicochemical and microbial analysis of all bread flour types, used in the bakeries of hamedan, iran during 2015-2016. materials & methods: all bread flour types such as barbari, lavash, sangak and tafton bread flours ...
the aim of this study was to investigate the effects of starters and storage temperature (4 ºc, 25 ºc) onmicrobiological and physicochemical properties, volatile compounds and sensory evaluation of kefir.kefirs produced by kfa and chr. hansen starters were stored at 4 ºc and 25 ºc for 40 days. ph andacidity at 4 ºc did not change (p ≥ 0.05), while at 25 ºc ph and total solid decreased as well a...
The tests described hereafter will allow quantitative enumeration of mesophilic bacteria and fungi that may grow under aerobic conditions. The tests are designed primarily to determine whether a substance or preparation complies with an established specification for microbiological quality. When used for such purposes, follow the instructions given below, including the number of samples to be t...
The aim of the study was to evaluate the usefulness of bioluminescence in the determination of cleanliness of steel surfaces characterised by different roughness (0.6 and 0.8 μm). The applicability of the method was assessed based on correlations between the number of relative light units (RLU) measured with a luminometer and microbial counts determined by the conventional microbiological metho...
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