Method for detecting soluble solids content in apples
A technology of solid content and solubility, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of judgment result error, complex and time-consuming operation, and inability to measure soluble solid content
Inactive Publication Date: 2016-05-25
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology
Although the detection results of this method are relatively accurate, the operation is very complicated and time-consuming, and only sampling detection can be performed to determine the approximate range of the soluble solid content of a certain type of apple. It is impossible to measure the soluble solid content of each apple sample at all.
[0004] In addition, there is currently no technology suitable for detecting the soluble solid content of apples on the market. Experienced people often judge the soluble solid content of apples by observing the appearance. Such judgment results have large errors and have become a bottleneck for the development of the apple industry.
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[0017] The method for detecting the soluble solid content of apples provided by the present invention will be described in detail below in conjunction with the accompanying drawings.
[0018]
[0019] figure 1 is the schematic diagram of the hyperspectral imager.
[0020] Such as figure 1 As shown, the hyperspectral imager 10 performs hyperspectral imaging on objects through line scanning, including a horizontal displacement stage 11, a bracket 12, a hyperspectral camera 13, a rectangular condenser lens 14, a rectangular condenser lens 15, a glass optical fiber 16, and a glass optical fiber 17 and light source 18.
[0021] The horizontal displacement platform 11 is placed on a horizontal platform (not shown in the figure). The support 12 is a cross-shaped support, the bottom end of the vertical part of the support 12 is fixedly connected with the horizontal displacement table 11, and the horizontal part of the support 12 is located in the middle of the vertical part. A h...
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Abstract
The invention provides a method for detecting the soluble solid content of an apple. The method is characterized by comprising the following steps of preparing an apple sample; adjusting a hyperspectral imager; correcting black and white plates; measuring the spectral reflectivity of the apple sample; measuring the spectral reflectivities of other samples; measuring the soluble solid content of the apple sample by a national standard method; constructing a mathematical regression model; and measuring and programming the soluble solid content of the apple. According to the method for detecting the soluble solid content of the apple, which is provided by the invention, the spectral reflectivity information of the apple can be measured only through the hyperspectral imager and is brought into a linear regression model, so that the soluble solid content of the apple can be calculated; and therefore, the method can quickly and accurately measure the soluble solid content of the apple without breaking the apple.
Description
technical field [0001] The invention relates to the measurement of soluble solid content, in particular to a method for nondestructive detection of apple soluble solid content based on spectral analysis. Background technique [0002] China is a big apple producing country, and the accurate determination of apple quality grades has always been an issue that China attaches great importance to. This is also the key to the industrial production of apples in China. The soluble solid content of apples is one of the important factors to measure the quality of apples, and the soluble solid content in apples directly affects the taste of apple products. [0003] At present, most of the methods for detecting the soluble solid content of apples at home and abroad need to destroy the apples. The national standard method for measuring the soluble solid content of apples is: firstly chop the apples, then put the apple pieces into a high-speed tissue homogenizer and mash them into a slurr...
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IPC IPC(8): G01N21/25
Inventor 李柏承周瑶侯宝路赵曼彤李梦远徐邦联王琦张大伟黄元申
Owner UNIV OF SHANGHAI FOR SCI & TECH