8 results about "Coliform bacteria" patented technology

The embodiment of the invention discloses application of lactobacillus delbrueckii. The application is characterized in that the lactobacillus delbrueckii is applied to inhibition of mesophilic aerobic bacteria, saccharomycetes, mould and coliform bacteria. The lactobacillus delbrueckii has a preservation number of CGMCC No.11247. In the lactobacillus delbrueckii activating process, bacteriocin can be generated and can remarkably inhibit the mesophilic aerobic bacteria, saccharomycetes, mould and coliform bacteria on the surfaces of fruits and vegetables, so that the preservation effect of thefruits and vegetables can be improved. Furthermore, secondary metabolites of the lactobacillus delbrueckii can be biodegraded and digested by human bodies, and are healthy and harmless to human bodies.

Existing predictive models employ fixed algorithms and parameters, which may not sufficiently account for dynamic nature of environmental conditions and microbial populations. The present disclosure receives data from one or more sensors specific to a water sample, information specific to Geographic Information System (GIS) and data specific to one or more process parameters. One or more sensors data is mapped with information specific to the GIS. Mapped data along with data specific to one or more process parameters are preprocessed using one or more data preprocessing techniques. The preprocessed data is fed into one or more trained Machine Learning (ML) models to predict likelihood of Escherichia coli. A correlation matrix of one or more parameters comprised in the preprocessed data and the predicted likelihood of E. coli is obtained. Contamination risks associated with the water sample are assessed based on the correlation matrix obtained.

A diagnostic kit and method for detecting urinary tract infections (UTIs) and bacteremia using a drinking water test in low-resource settings is provided. The kit includes a first bag containing a first culture medium capable of detecting Gram-negative and coliform bacteria through colorimetric and fluorescence indicators, and a second bag containing a second culture medium capable of detecting Gram-positive bacteria through colorimetric indicators. A method of using the kit involves inoculating a sample into each bag, incubating the bags, and observing for color changes and fluorescence to indicate bacterial presence. The kit enables rapid, cost-effective detection of bacterial pathogens in urine and blood samples without specialized laboratory equipment, facilitating early diagnosis and treatment in resource-limited environments.

This application discloses a flavor-enhancing and fresh-preserving braising liquid and its preparation method, belonging to the field of food seasoning technology. It contains a variety of spices and seasonings blended in a specific weight ratio, prepared through a process of caramelizing sugar for aroma enhancement, staged simmering, sealed static aging, filtration, and ultra-high temperature instantaneous sterilization. This method solves the technical problems of traditional braising liquids, such as single aroma, short-lasting fragrance, poor deodorization, bitterness after prolonged cooking, excessive medicinal flavor, short shelf life, high salt and oil content, and the inability to simultaneously enhance aroma and preserve freshness. Testing showed that the product had no detectable acid value or peroxide value, met coliform bacteria standards, and its sensory and nutritional indicators met national and enterprise standards. It has extremely low fat and saturated fat content, possessing both a rich, complex aroma and long-lasting preservation effect. With stable flavor and healthy low-fat properties, it is suitable for the industrial production, long-distance transportation, and long-term storage of Chinese-style braised foods, showing promising application prospects.

The invention belongs to the technical field of microbiological detection, and particularly relates to a method for rapidly detecting coliforms, which comprises the following steps: (1) mixing a sample to be detected with a diluent to obtain a sample solution; (2) centrifuging the sample liquid to remove supernate, and uniformly mixing precipitate with a culture medium to obtain suspension liquid; the culture medium is an EC-MUG culture medium or a mixture of an EC culture medium and FDG; (3) generating water-in-oil liquid drops from the suspension through a microfluidic liquid drop technology; (4) culturing the liquid drops in an incubator for a period of time; and (5) scanning the cultured liquid drops by using exciting light, detecting the total number of the liquid drops and the fluorescence intensity of each liquid drop, and then calculating the concentration of the coliform bacteria by using a Poisson distribution formula. According to the invention, the coliform group is divided into single bacterium liquid drops by adopting a microdroplet generation technology, and the total number of the coliform group is detected by utilizing an enzyme substrate luminescence principle and a fluorescence scanning counting technology, so that the rapid and accurate detection of the coliform group is realized.

The utility model relates to the technical field of bacterium detection equipment, and particularly discloses a coliform group single-tube quantitative detection device, which comprises a culture tube, a detection tube, a reducer tube, a piston and a silica gel foam plug, the surface of the detection tube is coated with a color-bacterium concentration relation table, a liquid discharge tube is arranged in the tube wall of the culture tube in a penetrating manner, and the liquid discharge tube is connected with the silica gel foam plug. A valve is connected to the portion, outside the culture tube, of the liquid discharging tube, the reducer tube comprises a small-diameter section, a first large-diameter section and a second large-diameter section, the first large-diameter section and the second large-diameter section are connected to the two ends of the small-diameter section respectively, the first large-diameter section is connected to the top of the culture tube in a sealed mode, and a silica gel foam plug is clamped in the second large-diameter section. The piston is connected into the small-diameter section in a sealed and sliding mode, the top of the piston is connected with a drawing rod, the drawing rod penetrates through the silica gel foam plug, and the culture tube achieves the effect of facilitating sampling under the condition that ventilation and bacterium isolation are guaranteed.

The invention discloses a novel gel type dairy product and a preparation process thereof. The novel gel type dairy product comprises a jasmine flower extracting solution, pure milk, white granulated sugar, gelatin and a 0.1% five-bacterium type lactic acid bacteria leavening agent. According to the preparation process of the novel gel type dairy product, the active ingredients of the jasmine flowers are extracted by adopting a cold extraction-distillation combined method, and the influence of multi-factor interaction on sensory scoring is solved through an orthogonal experimental design. Physicochemical and microbiological detection shows that the soluble solid content of the product is 18%, the acidity is 84 DEG T, the protein content is 4.51 g / 100g, the viable count of lactic acid bacteria is 4.7 * 10 < 8 > CFU / mL, the total number of bacterial colonies is only 1 CFU / g, coliform bacteria are not detected and are all superior to national standard requirements, and high nutritional value and safety are guaranteed. The product has fermented frankincense of yoghourt and fresh flower fragrance of jasmine flowers, is fine and smooth in taste and palatable in sourness and sweetness, and breaks through the limitation that traditional jelly is single in nutrition and insufficient in functionality.

The application belongs to the technical field of wastewater treatment, in particular to a pharmaceutical wastewater treatment process and a filtering equipment thereof; S1, pharmaceutical wastewater is introduced into a wastewater station through a wastewater pipe network, and most of floating matter and large-particle suspended matter in the wastewater is removed by a filtering equipment and discharged into a water collecting well, wherein the filtering equipment comprises a filter, a filter plate is fixedly connected inside the filter, a filter groove is arranged inside the filter plate, a limiting plate is fixedly connected to the upper surface of the filter plate, a moving plate is slidably arranged on one side of the limiting plate, a first scraper is fixedly connected to the lower surface of the moving plate, and a second scraper is slidably connected to one side of the first scraper; the effluent of the sedimentation tank is filtered through a membrane assembly with micron pore size, so that the suspended matter in the effluent meets the standard, the effluent is clear, and 99% of coliform bacteria can be removed at the same time.