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Pseudosciaena crocea storage time detection method

A technology of storage time and detection method, applied in the measurement of color/spectral characteristics, etc., can solve the problems of long time, cumbersome detection method and high cost.

Inactive Publication Date: 2014-10-08
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
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Problems solved by technology

[0005] The purpose of the invention is to provide a method for detecting the storage time of large yellow croaker with fast detection speed and high accuracy in order to overcome the shortcomings of the detection method in the prior art which are cumbersome, high cost and time-consuming.

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  • Pseudosciaena crocea storage time detection method

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Embodiment Construction

[0040] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] Such as figure 1 The embodiment shown is a method for detecting the storage time of large yellow croaker. The detection device used for detection includes a laser array 1, a spectrometer, a horizontal support plate 2 and an optical fiber probe 3; the optical fiber probe is electrically connected with the spectrometer and the computer in sequence, including the following steps :

[0042] Step 100, sample preparation:

[0043] Wash the large yellow croaker, remove the viscera, scales, head and tail, take out 30 grams of flaky fish meat from the fish body as the sample 4 to be tested, and set 5 angles A j , A 1 is 45 degrees, A 2 50 degrees, A 3 55 degrees, A 4 60 degrees, A 5 is 65 degrees; the initial value of setting parameter j is 1; the fish meat is 5 mm.

[0044] Step 200, perform detection: electrically connect the computer to the spec...

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Abstract

The invention discloses a pseudosciaena crocea storage time detection method. The method includes: making the laser emitted by a laser array irradiate a sample according to different angles Aj in order, collecting the light reflected by the sample by an optical fiber probe and inputting the collected light into a spectrometer so as to obtain n detection signals corresponding to the wavelengths of n lasers; inputting x(t) into a stochastic resonance system model by a computer to make the stochastic resonance system model undergo stochastic resonance; and drawing an output signal noise ratio curve of the stochastic resonance system model by the computer, and conducting calculation by the computer to obtain a predicted pseudosciaena crocea storage time. With the characteristics of fast detection speed, high accuracy and good economical efficiency, the method provided by the invention eliminates the interference information of useless band stray light, and the sample storage time is better differentiated.

Description

technical field [0001] The invention relates to the technical field of food quality detection, in particular to a large yellow croaker storage time detection method with high detection speed and high accuracy. Background technique [0002] Large yellow croaker belongs to the Sciaenidae family (Sciaenidae), also known as yellow croaker and stone head fish. Large yellow croaker is a dry-swimming fish clustered in warm-temperate coastal waters, and its main activity area is south of the central part of the South China Sea. Because it contains a large amount of selenium, it can better scavenge free radicals and beautify the skin. In addition, large yellow croaker is very rich in protein, and its meat is relatively delicate, which can be used as one of the ideal animal protein sources for human beings. Large yellow croaker is known as my country's four major economic fishes, especially in the development of marine fisheries in my country and the western Pacific Ocean. Among the...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 惠国华杜佳苏
Owner ZHEJIANG GONGSHANG UNIVERSITY
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