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Search results: bacterial clump

Number of results: 6


Antimicrobial effects of natural honey
Annotation:

This article is written in line with the important questions on antimicrobial effects of natural honey against gram-positive bacteria to reveal the therapeutic properties. These circumstances demonstrate the medical and social significance of solving the science-oriented task of developing high-quality pharmaceutical product on the basis of honey as well as its application not only as a preventive and medicinal agent to treat many illnesses but also as in beauty treatment.

Year of release: 2015
Number of the journal: 2(58)
Heading: Natural sciences

To the question of the treatment and prevention of intestinal diseases by bacteriophages
Annotation:

The proposed article presents theoretical studies of the treatment and prevention of intestinal infections of farm animals and birds. The relevance of the topic is due to the emergence and spread of infections resistant to antibiotics associated with the widespread use of antibiotics in clinical medicine, veterinary medicine and agriculture, which reduces the effectiveness of antibiotics in the fight against intestinal infectious diseases and their treatment

Year of release: 2018
Number of the journal: 3(71)

Study of the possibility of using heterologous preparations in the serologic diagnosis of carnivorous plague
Annotation:

Main problem: The genus Morbillivirus of the family Paramyxoviridae includes agents of morbilli, plague of cattle, carnivores and small ruminants. Plague agent of carnivores causes a dangerous disease of fur animals and dogs, which in many cases ends in death. The disease is widespread everywhere, including Kazakhstan. In our country, the mixed form of the disease is most common, and the least common is the skin and nervous forms. The chronic course of plague is observed to a greater extent with the nervous form, subacute - with mixed and intestinal, acute - with cutaneous and pulmonary forms of the disease. Goal: Veterinarians have significant difficulties in diagnosing carnivorous plague. Despite the fact that serological methods for diagnosing this infection have been developed and applied for research purposes, the lack of commercial diagnostic preparations on sale significantly restrains their use by practical veterinary workers. Therefore, the diagnosis of plague of carnivores is mainly established on the basis of the symptom complex of the disease and the data of epizootic and pathological anatomical studies, the results of which are largely similar to those in some other diseases of carnivores. Scientific research in the field of means and methods of laboratory diagnostics of carnivore plague, applicable in practical veterinary medicine, is in great demand. Methods: Considering the fact that the carnivores plague and cattle plague are antigenically closely related, studies were carried out to determine the possibility of using means and methods for diagnosing cattle plague for serological diagnosis of carnivores plague. Results and their significance: It has been established that the use of means and methods for diagnosing cattle plague makes it possible to diagnose carnivore plague at all stages of the course of the disease, their use makes it possible to reliably establish a diagnosis of the disease in fur-bearing animals and dogs in a short time after the receipt of samples of material for research, even in cases of mixed viral and bacterial infections; and also to differentiate the plague of carnivores from diseases similar to it - parvovirus enteritis, infectious hepatitis and a number of others.

Year of release: 2020
Number of the journal: 3(79)

Development of the technology of cream bioadditive for enrichment of processed cheese product of functional orientation
Annotation:

The article is devoted to comprehensive research and development of the technology of cream supplements for the enrichment of processed cheese products. This article discusses the steady trend towards the use of dairy products with probiotic properties in the diet of modern people. The authors justify the requirements for the chemical composition and properties of a new type of processed cheese product: the mass fraction of dry processed cheese product must be at least 45 wt.%, the amount of probiotic microflora at least 107 CFU/g, to adjust the fatty acid composition of the product, the use of milk fat substitutes. As a result of the research, the composition and technological parameters of the production of a cream Supplement intended for enriching a new processed cheese product were determined. Skimmed milk powder concentrate with a mass fraction of dry substances (48.0±0.5) %was selected to increase protein (nitrogenous substances) in the nutrient medium for microorganisms. To activate the growth of bifidobacteria, the prebiotic No. 1 – lactulose was studied. The main content of the study is the analysis of the effect of increasing the amount of SOM concentrate on the chemical composition of the compositions of experimental products. The bacterial concentrates Bifilact-B and Bifilact-u were selected as the source of probiotic cultures. In fermented products, microbiological indicators were determined: the total number of lactic acid cultures and bifidobacteria. The article analyzes the dynamics of acidity of experimental products fermented with bifilact-B bacterial concentrate and bifilact-u bacterial concentrate. It was found that in experimental products with a high level of acid formation, the growth of bifidobacteria decreases, this is due to the fact that at low pH values, the growth of bifidobacteria slows down, and at a pH below 4.5 – stops. There was a significant increase in the number of bifidobacteria in the presence of a prebiotic – lactulose concentrate. The authors proved that the fermentation process with the formation of a clot in experimental products with bifilact-B bacterial concentrate is completed within 9-10 hours, taking into account the time of compaction of the consistency. In experimental products fermented with bifilact-U bacterial concentrate, the fermentation process ends within 7-8 hours, that is, by (2.0±0.5) hours faster.

Year of release: 2020
Number of the journal: 3(79)

Risks of microbiological contamination of fruits and vegetables used for food
Annotation:

Fruits and vegetables are most often consumed without being thoroughly processed before consumption. Some plant foods are vacuum-packed to ensure long shelf life as well as preserving the quality and safety of the product. Fruits and vegetables carry naturally occurring non-pathogenic epiphytic microflora on their surfaces. During growth, harvesting, transport and further handling they can be repeatedly contaminated by pathogens from human or animal sources. Fresh fruit crops have been implicated in a number of documented foodborne disease outbreaks. Outbreaks of diseases caused by bacteria, viruses and parasites have been epidemiologically linked to the consumption of a wide range of fruits and vegetables. The aim of our study is to assess the risk of contamination in fruit and berry crops and how to address this long-standing problem, namely, contamination of fruit and vegetables with unnatural pathogenic microflora. The following fruit and berry crops common in Turkestan region were chosen for the experiment: Apple variety Suislepskoe (stolovka) , peach variety Nectarine and grape variety Kishmish. Bacteriological inoculation was carried out by membrane filtration of used sterile water to obtain flushes from the surface of fruit crops. All work was carried out under full aseptic conditions. The utensils, water and other equipment used in the work were sterilised in advance. The data obtained during the experiment shows that there is a potential for widespread contamination of uncharacteristic microflora of plant products. Based on the results of the study it can be concluded that there are yeasts and acetic acid bacteria on the surface of all three samples of fruit and berry crops, which can be universally contaminated food and are not the natural microflora for the above mentioned crops. Specifically, fruits and vegetables can be contaminated with various bacterial pathogens, including Salmonella, Shigella, E. Coli O157:H7, Listeria monocytogenes and Campylobacter.

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Results of mathematical analysis of experimental data fermentation of skimmed milk to produce a fermented milk product
Annotation:

The main problem: Modern research in the development of fermented milk products is focused on increasing the bioavailability of milk components, as well as the use of bacterial components of sourdough, which increase health properties. The use of the fermentation process of skimmed milk with a combined starter consisting of traditional for cottage cheese and starter cultures of probiotic cultures immobilized in a gel of biopolymers is very important. Purpose: The purpose of this study is to determine the optimal amount of starter, consisting of an association of probiotic cultures immobilized in a gel of biopolymers (membranes) to be added to fermented skimmed milk in order to enrich it with functional ingredients. Methods: A one-factor experiment was used. The culture association Propionibacterium freudenreichii subsp. was used as a regulatory factor. Shermanii, Bifidobacterium lactis and Streptococcus thermophilus, immobilized in a biopolymer gel, added to skimmed milk in the form of membranes (determined as a percentage of the mass of fermented milk). Controlled factors are the main indicators characterizing the efficiency of the skim milk fermentation process; these are active acidity, the logarithm of the number of viable cells of bifidobacteria, the logarithm of the number of viable cells of propionic acid bacteria, and organoleptic evaluation. Results and their significance: Based on the results of a mathematical analysis of the totality of values of controlled factors depending on the amount of starter cultures of probiotic cultures, mathematical models were built to determine the degree of influence of the starter on the quality indicators of the product, using the Table Curve 3D-v4 mathematical computer program.

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