Sample processing cabinet for detecting zearalenone in corn and processing method

Abstract

The invention discloses a sample processing cabinet for detecting zearalenone in corn and a processing method of the cabinet. By organically combining a corn crusher, a wet grinding crusher, a stirring culture tank, a pressure filter, a filter, a dryer and a processing tank into a whole, pretreatment operations such as grinding, pulverizing, mixing culture solution for acceleration, filtering anddrying and the like after a corn feed sample enters are realized, and thus common workers can well master and process the feed sample after simple training, and the contact between the detection sample and personnel is reduced to the greatest extent; the processed feed sample is used for detection, and thus the detection accuracy is improved, more importantly, the detection result can be used to characterize the content of the zearalenone in the feed after a few days under the normal storage condition through acceleration, so that the detection frequency is reduced from two to three days or even every day to week or even longer, the detection frequency is greatly reduced, and the workload of detection personnel is reduced on the premise of ensuring the detection result to be as accurate aspossible.

Description

technical field [0001] The invention relates to the field of animal product feed detection, in particular to a sample processing cabinet and processing method for detection of erythralenone in corn. Background technique [0002] Zearalenone (Zearalenone), also known as F-2 toxin, was first isolated from corn with head blight. Zearalenone mainly contaminates grains such as corn, wheat, rice, barley, millet and oats. Among them, the positive detection rate of corn is 45%, and the highest toxic content can reach 2909mg / kg; the detection rate of wheat is 20%, and the toxic content is 0.364-11.05mg / kg. [0003] Zearalenone has estrogen-like effects, can cause acute and chronic poisoning of animals, cause abnormal reproductive function and even death of animals, and can cause huge economic losses to livestock farms. Zearalenone is a metabolite of Gibberella zearalenone. [0004] Corn is one of the main raw materials for animal feed, and a large amount of corn is often stored as...

AI Technical Summary

Problems solved by technology

When extracting corn samples to obtain extracts, not only the extraction steps are cumbersome, time-consuming and labor-intensive, but also the requirements for the extraction operation and the quality of the extraction personnel are very strict, and it is easy to cause inaccurate test results due to carelessness in the operation

[0006] At the same time, due to the unsatisfactory extraction and purification effects during extraction, it is difficult to detect the gibberalenone toxin when it is uncertain whether there is mold in the corn feed, or if there is a small amount of mold, which will lead to trace amounts of gibberene Ketotoxins accumulate in animals and thus harm humans

[0007] Since a large amount of corn feed stored in a farm or animal feed factory (especially an animal feed farm) is used in large quantities every day, if it is tested every time before use, not only the detection cost is high (need to purchase professional equipment and training professional inspectors), and more importantly, due to the need for frequent use, the frequency of detection is very high, the existing detection methods are very cumbersome, and it is difficult to detect traces of mold, resulting in traces of erythralenone in animals. Accumulation in the body, thereby affecting food and personal safety

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