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Safety detection method for food fixed-point sampling

A technology of safety detection and fixed-point sampling, applied in sampling, sampling device, testing food, etc., can solve the problems of food that is easily brought into other parts, different speed of deterioration, deviation of detection data, etc., and achieves good effective effect and good detection effect. , the effect of reducing security risks

Inactive Publication Date: 2021-10-26
郑永胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing food usually optimizes the storage time precisely by testing the spoilage of food that is close to the shelf life for long-term preserved food, so as to effectively ensure that the food safety hazards consumed by consumers within the shelf life are low. For powder or For liquid food, its contact area with the air is different, resulting in different deterioration speeds, that is, when sampling and testing food, when sampling samples from different parts, such as the surface, middle, bottom, etc., the test data obtained are different. However, when sampling in the prior art, due to the certain fluidity of powdered or liquid food, when sampling, the sampling of the target position is likely to be carried into other parts of the food, resulting in certain deviations in the detection data, and the accuracy is not good. high

Method used

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  • Safety detection method for food fixed-point sampling
  • Safety detection method for food fixed-point sampling
  • Safety detection method for food fixed-point sampling

Examples

Experimental program
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Effect test

Embodiment 1

[0047] see figure 1 , a safety detection method for fixed-point sampling of food, comprising the following steps:

[0048] S1. First, package and preserve the food, and group it, and then take samples through the gas separation tube at different times;

[0049] S2. Unpack the powdered food, and then slowly insert the gas separation tube into the food until it touches the bottom;

[0050] S3. Fill inert gas into the gas separation tube to partially expand and separate the gas separation tube, so that the food enters the gas separation tube, and continue to inflate to rupture the water balloon 7 in the gas separation tube, so that the sampling piece is soaked and absorbs food;

[0051] S4. Stop inflating, and release the gas in the gas separation tube outward, so that the gas separation tube is closed. At this time, the gas separation tube is drawn out to obtain multiple groups of samples of different parts;

[0052] S5. Carrying out safety testing on the bacterial content, ba...

Embodiment 2

[0061] A safety detection method for fixed-point sampling of food, comprising the following steps:

[0062] S1. First, package and preserve the food, and group it, and then take samples through the gas separation tube at different times;

[0063] S2. Unpack the powdered food, and then slowly insert the gas separation tube into the food until it touches the bottom;

[0064] S3. Fill inert gas into the gas separation tube to partially expand and separate the gas separation tube, so that the food enters the gas separation tube, and continue to inflate, so that the sampling piece 4 is gradually approached to the outside to absorb food;

[0065] S4. Stop inflating, and release the gas in the gas separation tube outward, so that the gas separation tube is closed. At this time, the gas separation tube is drawn out to obtain multiple groups of samples of different parts;

[0066] S5. Carrying out safety testing on the bacterial content, bacterial activity and nutrient deterioration d...

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Abstract

The invention discloses a safety detection method for food fixed-point sampling, and belongs to the field of food detection. The safety detection method for food fixed-point sampling comprises the steps that by arranging an air separation pipe, when sampling is conducted and a target position is reached, air is inflated into the air separation pipe, a two-way supporting ring synchronously expands in the transverse direction and the longitudinal direction, an air separation magnetic ring is separated, and a sampling piece is exposed; fixed-point sampling of the target position is realized; after sampling, gas is released, so that the separated gas-separated magnetic ring is adsorbed and closed, and at the moment, the gas-separated magnetic ring is taken out to continuously isolate food at a non-target position. Compared with the prior art, the gas separation pipe is in a closed state before reaching the target position, and the food in the non-target position is effectively isolated. The condition that the position of a taken sample is uncertain due to food mobility is effectively overcome, then the influence of food at other parts on detection data is effectively avoided, the detection accuracy is remarkably improved, the effective effect on the shelf life of the food is better, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to the field of food testing, in particular to a safety testing method for fixed-point sampling of food. Background technique [0002] The indicators of food inspection mainly include food general composition analysis, trace element analysis, pesticide residue analysis, veterinary drug residue analysis, mycotoxin analysis, food additive analysis and other harmful substances analysis, etc. According to the characteristics of the inspected items, the inspection of each index corresponds to the corresponding inspection method. [0003] In addition to traditional conventional analysis methods, instrumental analysis methods have gradually become the main means of food hygiene inspection, including spectrophotometry, atomic fluorescence spectroscopy, electrochemical methods, atomic absorption spectroscopy, gas chromatography, high performance liquid chromatography, etc. The above inspection methods can be roughly divided into inorganic...

Claims

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Application Information

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IPC IPC(8): G01N1/10G01N33/02
CPCG01N1/10G01N33/02G01N2001/1006G01N33/009
Inventor 郑永胜
Owner 郑永胜
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