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Pseudosciaena polyactis storage time detection method

A technology of storage time and detection method, which is applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of cumbersome detection method process, high cost, and long time consumption, and achieve the effect of fast detection speed, high accuracy and good economy

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

[0005] The purpose of the invention is to overcome the shortcomings of the detection method in the prior art, which are cumbersome, high cost, and time-consuming, and provide a detection device based on a laser array with high detection speed and high accuracy and a storage time detection method for small yellow croakers.

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  • Pseudosciaena polyactis storage time detection method
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Embodiment Construction

[0039] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 The embodiment shown is a method for detecting the storage time of small yellow croakers. 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:

[0041] Step 100, sample preparation:

[0042] Wash the small yellow croaker, remove the viscera, scales, head and tail, take out 5 flaky fish meat from the fish body as the sample 4 to be tested, set the serial numbers of the 5 samples as 1, 2, ..., 5 respectively; set j The initial value of is 1; the thickness of the sample is 6 mm.

[0043]Step 200, detection: put the sample j on a horizontal support plate, irradiate the sample with laser light emitted by a laser a...

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Abstract

The invention discloses a pseudosciaena polyactis storage time detection method. The method includes: firstly making the laser emitted by a laser array irradiate p samples in order, collecting the light reflected by the samples 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; then adjusting the weight of each detection signal to obtain the satisfactory detection signal x(t), inputting the x(t) into a stochastic resonance system model to make the stochastic resonance system model undergo stochastic resonance, drawing an output signal noise ratio curve of the stochastic resonance system model by the computer, and conducting calculation by the computer to obtain K, introducing K into a storage time prediction model stored in the computer, and conducting calculation by the computer to obtain a predicted pseudosciaena polyactis 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 method for detecting the storage time of small yellow croakers with high detection speed and high accuracy. Background technique [0002] Small yellow croaker belongs to the Sciaenidae family (Sciaenidae), also known as yellow croaker and stone head fish. The small 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 the small yellow croaker contains a large amount of selenium, it can better remove free radicals and beautify the skin. In addition, small yellow croaker is very rich in protein, and the meat is relatively delicate, which can be used as one of the ideal animal protein sources for human beings. Small yellow croaker is known as my country's four major economic fishes, especially in the development of marine fisheries in my country and ...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 惠国华王敏敏
Owner ZHEJIANG GONGSHANG UNIVERSITY
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