Safety detection method based on liquid food

Abstract

The invention discloses a safety detection method based on liquid food. The invention belongs to the field of food safety. According to the safety detection method based on liquid food, a reverse inner air blowing pipe is arranged; when bottled liquid food is sampled, the reverse inner air blowing pipe is inflated; and thus a lower sampling opening is opened, so that sampling of bottom solid precipitates is realized. Meanwhile, an expansion air-blowing pipe expands an extension through pipe in the expansion air-blowing pipe to extend out of the elastic open bag to communicate the inside with the outside of the elastic open bag; therefore, sampling of liquid food at the bottom is realized. Compared with suction type sampling in the prior art, the disclosed method has the following advantages: inflatable sampling is adopted, so that the sealing performance of the reverse inner air blowing pipe before reaching the bottom is effectively guaranteed, all or most of the obtained samples are samples at the bottom, the accuracy of a detection result is further effectively guaranteed, the quality guarantee period optimization effect is improved, and the safety of consumers eating the liquidfood is improved.

Description

technical field [0001] The invention relates to the field of food safety, in particular to a liquid food-based safety detection method. Background technique [0002] Food inspection in a broad sense refers to a discipline that studies and evaluates food quality and its changes. It is based on some basic theories and various technologies of physics, chemistry, and biochemistry, and in accordance with established technical standards, such as international and national food hygiene / safety Standards, to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products to ensure that the product quality is qualified. The content of food inspection includes the sensory inspection of food, the detection of nutritional ingredients, additives, and harmful substances in food, etc. [0003] The development of analytical chemistry provides accurate and reliable analytical methods for food safety inspection. With the rapid develop...

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Problems solved by technology

[0006] Existing food usually optimizes the storage time precisely by detecting the spoilage of food that is close to the shelf life for long-term preserved food, so as to effectively ensure that consumers eat food within the shelf life with low hidden dangers. Regarding liquid food, Especially for liquid foods containing solid deposits, such as bottled beverages containing fruit particles, the solid deposits will sink to the bottom during long-term standing. However, there is a certain difference in the spoilage speed of solid deposits and liquid food parts, resulting in For liquid food, the freshness of the food near the bottom after standing still is different from that of other parts of the food. Therefore, when performing safety testing, it is necessary to focus on sampling the sample at the bottom for testing. However, the existing suction sampler, in When entering the liquid food, during the movement from top to bottom, the sampling end will enter part of the upper liquid food, resulting in the obtained sample not being completely the bottom sample, resulting in a large difference in the obtained test data and low accuracy. high

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