A kind of cold hydrogel and its application

Abstract

The invention provides a kind of cold water gel and application thereof, described cold water gel comprises xanthan gum, guar gum and sodium polyacrylate, and the mass ratio of described xanthan gum, guar gum and sodium polyacrylate is (1 ~2):(1~2):1. The present invention also provides a microorganism detection medium, which comprises the cold water gel. The cold water gel prepared by the present invention has excellent water absorption, water retention and gelation speed through reasonable proportioning of xanthan gum, guar gum and sodium polyacrylate; the transparency of the microorganism detection medium is higher Good, high gel strength, easy to observe, count and pick colonies. The microbial detection medium powder is fixed on the inner bottom wall of the petri dish with self-adhesive, and the prepared microbial detection kit is easy to use and can be applied to the detection of aerobic bacteria and facultative anaerobic bacteria. The preparation method is simple and efficient , the application value is extremely high.

Description

technical field [0001] The invention belongs to the technical field of microorganism detection, and in particular relates to a cold water gel and an application thereof. Background technique [0002] Food microbiological detection is a basic task of food safety inspection and the basis for ensuring food safety. At present, traditional microbial detection methods include morphological detection and biochemical detection, which are relatively common food microbial detection technologies with high detection accuracy, but the detection process is complicated to operate, requires more manpower and material resources, and takes a long time. [0003] With the continuous advancement of science and technology, some new detection methods and detection kits continue to emerge. CN1876829A discloses a kit for the anti-interference rapid detection of microbial quantity by using the ATP bioluminescence method. By making the ATP standard curve in the selected bioluminescence instrument and...

AI Technical Summary

Problems solved by technology

The food microbiology rapid detection instrument is reasonable in design, easy to use, and takes a short time, but it needs the help of corresponding detection instruments, which cannot be applied to on-site detection, and its applicability is poor

[0005] At present, there are generally limiting factors such as cumbersome operations, long time-consuming or the need for professional instruments in the detection of food microorganisms.

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