A kind of lactic acid bacteria beverage shelf life quality detection sensor and detection method

Abstract

The invention discloses a lactobacillus beverage shelf life quality detection sensor and a lactobacillus beverage shelf life quality detection method. The sensor comprises a gas chamber and an infrared light signal module. The gas chamber is connected with a base and provided with a gas inlet and a gas outlet, a gas flow cavity is arranged inside the gas chamber, and a rotatable mirror is arranged on one side of the gas chamber and can rotate under drive of external force. The infrared light signal module is arranged on the outer side of the rotatable mirror; when the rotatable mirror is in a first state, two 45-degree reflecting mirrors on the rotatable mirror do not block incident light of the infrared light signal module, light rays are emitted into the gas flow cavity, and emergent light returned from the gas flow cavity is received by a light receiver in the infrared light signal module; a microprocessor is used for storing and processing received signals and displaying processed results. The lactobacillus beverage shelf life quality detection sensor and the lactobacillus beverage shelf life quality detection method have the advantages that different from that whether lactobacillus beverages deteriorate or not is judged according to color, luster, bubbles, volume expansion, smell and taste of lactobacillus beverages, a novel detection means is provided, and the relation between deteriorated gas overflow concentration and lactobacillus beverage deterioration is quantified; directness is achieved, and data are provided accurately.

Description

technical field [0001] The invention relates to sensor technology, in particular to a gas sensor made by using an optical method to measure the different absorption values ​​of specific frequency light by different gases, especially the technology for detecting the gas spilled from spoiled lactic acid bacteria beverages. Background technique [0002] In the prior art, lactic acid bacteria beverages are generally not stored for too long after leaving the factory, and should usually be sold within 15 days, and expired beverages are not suitable for drinking. [0003] After the lactic acid bacteria beverage produced by the applicant adopts a special formula and a special process, the shelf life can be extended by 2 months, and the quality remains unchanged. Although the product can have a longer shelf life, in actual operation, it is necessary to take a certain amount Since there is no professional quality testing instrument, it is generally judged according to the color, air b...

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Problems solved by technology

[0005] In order to solve the problem in the prior art of manually judging the quality of lactic acid bacteria beverages based on the color, bubbles, volume expansion, smell, and mouthfeel of the product, the present invention proposes a quality detection sensor and detection method for the shelf life of lactic acid bacteria beverages, which solves the lack of expertise in the prior art. instrument problem

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