Method for predicting content of soluble solid matters in agaricus bisporus ultrasonic penetration process based on hyperspectral
A technology of solid content and Agaricus bisporus, applied in color/spectral characteristic measurement, permeability/surface area analysis, measuring device, etc., can solve the problem of unsatisfactory prediction results, model accuracy and stability need to be improved, and few dynamic processes Real-time monitoring and other issues to achieve the effect of reducing dimensions, accurate detection and evaluation, and improving accuracy
Inactive Publication Date: 2019-09-17
NANJING UNIV OF FINANCE & ECONOMICS
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However, the accuracy and stability of the models in these studies need to be improved, the prediction effect is not ideal, and real-time monitoring of dynamic processes is rarely carried out
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Embodiment 1
[0097] The hyperspectral-based method for predicting the content of soluble solids in the process of ultrasonic infiltration of Agaricus bisporus, the steps are as follows:
[0098] (1) Preparation of control group samples and experimental group samples
[0099] Cut 180 Agaricus bisporus slices with basically the same hardness, color and size without any damage into 5mm slices, take the middle part as the experimental group, and take 60 same Agaricus bisporus slices as the control group; The 180 samples were divided into 5 groups on average, and the 5 groups of samples were subjected to ultrasonic infiltration treatment in a sucrose aqueous solution with a mass concentration of 50%. The solid-liquid ratio was set to 1:10 (W / W), and samples were collected every 10 minutes from 0 min until ultrasonic treatment for 50 min to obtain experimental groups (samples of ultrasonic 10 min, samples of ultrasonic 20 min, samples of ultrasonic 30 min, ultrasonic 40min samples and ultrasoni...
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The invention provides a method for predicting the content of soluble solid matters in agaricus bisporus ultrasonic penetration process based on hyperspectral, and belongs to the technical field of determination of the content of soluble solid matters in agaricus bisporus. The method comprises the steps of enabling the agaricus bisporus to be subjected to ultrasonic penetration treatment at different times in a penetrating fluid to obtain an experimental group sample and a control group sample; acquiring a hyperspectral image by adopting a hyperspectral, and extracting the original spectrum of the hyperspectral image; measuring the soluble solid value of the agaricus bisporus sample in the control group and the experimental group by adopting a digital display refractometer; and preprocessing the original spectrum, extracting characteristic wavelengths, and finally establishing a linear regression model of a characteristic spectrum matrix and the soluble solid content value matrix through partial least squares regression, wherein the prediction of the soluble solid content of the agaricus bisporus sample to be detected is realized. According to the method disclosed by the invention, a traditional damage-type method for detecting soluble solid matters of agricultural products is avoided, and nondestructive, rapid and accurate detection and evaluation can be realized.
Description
technical field [0001] The invention relates to the technical field of measuring the content of soluble solids in Agaricus bisporus, in particular to a hyperspectral-based method for predicting the content of soluble solids in Agaricus bisporus ultrasonic penetration process. Background technique [0002] Agaricus bisporus is one of the edible fungi with the highest output and largest consumption in the world. It is deeply loved by consumers because of its white color, delicious taste and rich nutrition. However, its high respiration rate and high water content are prone to microbial spoilage and show enzymatic browning. Therefore, it is usually necessary to dry the picked Agaricus bisporus to delay its shelf life. Common drying methods such as freeze-drying can retain its original quality and nutritional value to the greatest extent. Previous work has proved that ultrasonic-assisted osmotic dehydration can be used as a pretreatment method in the freeze-drying of Agaricus b...
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IPC IPC(8): G01N15/08G01N21/25G16C10/00
CPCG01N15/08G01N21/25G16C10/00
Inventor 裴斐肖坤鹏胡秋辉沈飞杨文建方勇马宁
Owner NANJING UNIV OF FINANCE & ECONOMICS