Transparent water-absorbing gel for microbial detection and detection plate

Abstract

The invention discloses a transparent water-absorbing gel for microbial detection and detection plate. A solid matter of the transparent water-absorbing gel consists of polyacrylic resin, sodium carboxymethylcellulose and sodium polyacrylate. The transparent water-absorbing gel disclosed by the invention has the characteristics of rapid water absorption and water retention, and ensures that a diluent can be rapidly absorbed by the gel, is uniform in distribution, and is not easy to flow on the gel surface in strands; and meanwhile, the gel has the advantages of good coagulability and high transparency, does not have obvious inhibition effects on microorganism growth, is beneficial to accurate reading, and ensures that more accurate detection results can be acquired. By adopting the transparent water-absorbing gel, a series of products such as Listeria monocytogenes detection plates, staphylococcus aureus detection plates, salmonella detection plates and escherichia coli O157 detection plates can be successfully developed, and pathogenic microorganisms in foods and environments can be rapidly detected.

Description

technical field [0001] The invention relates to the field of microbiological testing. Background technique [0002] With the development of social economy and the continuous improvement of people's living standards, people's requirements for quality of life are getting higher and higher, and food safety issues are getting more and more attention. In food production, processing, storage, transportation, sales and other links, it may be contaminated by microorganisms. Especially in recent years, with the aggravation of environmental pollution and the continuous destruction of ecological balance, there are more and more types of pathogenic bacteria that can cause human infection, and the threat of pathogenic microorganisms to human beings is increasing. Food hygiene quality problems caused by microbial contamination have attracted much attention, and the use of appropriate microbiological testing methods is an important means to prevent food-borne poisoning. However, the trad...

AI Technical Summary

Problems solved by technology

Since the filter paper, the water-absorbing gel layer and the bottom plate are all opaque, it is difficult to count the microorganisms growing on the underside of the filter paper, between the water-absorbing gel layer and the bottom plate, and it is easy to cause a low detection rate of food microorganisms

The test piece represented by the Petrifilm carrier uses a transparent water-absorbing gel, but the water-absorbing gel has poor water absorption performance. low test result

Images