Cold hydrogel and application thereof

Abstract

The invention provides cold hydrogel and application thereof, the cold hydrogel comprises xanthan gum, guar gum and sodium polyacrylate, and the mass ratio of xanthan gum to guar gum to sodium polyacrylate is (1-2) : (1-2) : 1. The invention also provides a microbiological detection culture medium. The microbiological detection culture medium comprises the cold hydrogel. The xanthan gum, guar gum and sodium polyacrylate are reasonably proportioned, so that the cold hydrogel has excellent water absorptivity, water retention property and gelation speed; a microorganism detection culture medium is better in transparency and high in gel strength, and facilitates observation, counting and picking of bacterial colonies. A microbiological detection kit, prepared by fixing the microbiological detection culture medium powder on the inner bottom wall of a culture dish through an adhesive sticker, is convenient to use, can be applied to detection of aerobic bacteria and facultative anaerobic bacteria, and is simple and efficient in preparation method and extremely high in application value.

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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