KR100609230B1 - Method of Inspecting the Quality of Dried ginseng Using the X-RAY Computer Tomography - Google Patents

Abstract

A method for inspecting the quality of dried ginseng such as white ginseng, taegeuk ginseng or red ginseng is disclosed. In the above-described quality inspection method, a ginseng holder accommodating a plurality of ginsengs is x-rayed tomographically using an X-ray computer tomography device, and then the quality grades of the ginsengs are determined by analyzing the computed tomography of the tossed ginsengs. . This quality inspection method of the ginseng can not only inspect the quality of the ginseng more accurately and objectively, but also can inspect a large amount of ginseng at a low cost.

Red ginseng screening, computed tomography

Description

Method of Inspecting the Quality of Dried ginseng Using the X-RAY Computer Tomography}

1 is a view schematically showing an X-ray computed tomography apparatus applied to inspect the quality of dried ginseng.

FIG. 2 is a flowchart illustrating a method for inspecting quality ginseng using X-ray computed tomography apparatus according to Example 1 of the present invention.

3 is a process flowchart showing a red ginseng quality inspection method using an X-ray computed tomography apparatus according to a second embodiment of the present invention.

4A is a computed tomography photograph of multiple scans of multiple red ginsengs at 3 mm intervals using an X-ray computed tomography apparatus.

4B is a computed tomography photograph of a plurality of red ginsengs cross-sectioned at 3 mm intervals using an X-ray computed tomography apparatus.

FIG. 4C is a photograph showing a part of the computed tomography photograph shown in FIG. 4B in detail.

FIG. 5 is a computed tomography photograph of red ginseng at 3 mm intervals in longitudinal section using an X-ray computed tomography apparatus.

The present invention relates to a quality inspection method of dried ginseng, and more particularly, to provide a method for inspecting the quality of dried ginseng with low moisture content such as red ginseng, red ginseng and taegeuk ginseng using a computed tomography device.

In general, ginseng products such as white ginseng, red ginseng, and Taegeuk ginseng determine the grade according to the appearance condition, size, weight and the state of the internal structure, and the grade of the dry ginseng is classified according to the grade. This grade determines the price of the dried ginseng.

Of the above-mentioned dried ginseng, white ginseng is mainly 4 years old ginseng as a raw material and is not peeled or cooked as it is by sunshine, hot air or other methods. It is dried and has a water content of 14% or less and has a milky white or pale yellow color. Here, white ginseng is divided into straight ginseng (round ginseng of ginseng), half-goak ginseng (curved ginseng root) and grain ginseng (curved part of root and main root) according to the appearance processing form.

The Taeguksam is a product having an intermediate form of red ginseng and white ginseng, which is dried by immersing fresh ginseng for 10 to 20 minutes in water at 80 to 90 ° C. and then compatible with a part of the body from the epidermis. When the color of the epidermis is pale yellow brown and the cut is cut the cross section has a light brown ring similar to the color of the cut surface of red ginseng.

The red ginseng refers to pale yellow brown or light red ginseng with a moisture content of 14% or less, which is produced by performing red ginseng and drying in a state of not peeling after selecting 4 to 6 years old ginseng. Here, the red ginseng is reduced to less than 14% in the steam steaming process is not contaminated with microorganisms such as bacteria and fungi can be stored for a long time. In addition, saponin is inhibited from being degraded during processing, and red ginseng-specific active ingredients such as maltol and Ginsenoside-Rh ₂ other than saponin are additionally produced to have high drug efficacy.

Red ginseng has these characteristics, according to the quality of the product, such as color appearance of the appearance, shape of the appearance and the state of the internal structure, Cheonsam (the best quality among the red ginseng, the finest internal structure and the best appearance.), Jisam (Cheonsam) It is a product of the following grades, and is classified into the internal tissues and appearance slightly weaker than Cheonsam.) And Yangsam (the following grades are good products and slightly weaker than the Jisam in internal structure and appearance).

Red ginseng is examined by professional red ginseng discriminators to classify quality grades. The criteria are judged by the appearance of red ginseng, the degree of pore formation in red ginseng, and the density of tissues. That is, the discriminator judges the grade of red ginseng by determining the presence or absence of sponge tissue according to the small and large amount of space formation (pores) inside the red ginseng and the density of the tissue.

Since the evaluation of the red ginseng grade is subjective, the red ginseng differentiator has a different judgment, and even a differentiator with a long experience causes a mistake. This results in an average of 15 to 30% error in the red ginseng grading.

In addition, when the amount of moisture contained in red ginseng is not constant or the epidermis becomes porous, or when there is a substance such as redness in the epidermis, and light transmission is impossible, the epidermis of red ginseng is cut and the inside is observed. Since it is necessary to discriminate, the problem arises that the marketability of red ginseng. In other words, the selection of the wrong red ginseng as described above may cause a loss of reliability of the grade of the red ginseng, resulting in economic loss.

Accordingly, an object of the present invention is to provide a quality inspection method of dried ginseng that can select the quality of dried ginseng without error while preventing damage to the dried ginseng using an X-ray computed tomography apparatus.

In the quality inspection method of dry ginseng using a computed tomography apparatus according to an embodiment for achieving the above object of the present invention, first, the computed tomography ginseng accommodated in the gun ginseng holder using an X-ray computer tomography device Shoot. Subsequently, the computed tomography of the computed tomography of ginseng is analyzed to determine the quality grade of the ginseng.

In addition, in the quality inspection method of a ginseng using a computed tomography apparatus according to another embodiment for achieving the object of the present invention, first, accommodates the ginseng in a gun ginseng holder made of a gun ginseng receiving portion having a space for accommodating the ginseng independently do. Subsequently, computed tomography of the dried ginseng accommodated in the dried ginseng holder is performed using an X-ray computed tomography apparatus. Then, image information about each of the dried ginseng is extracted from the computed tomography photographs of the towed ginseng. Subsequently, a contrast value of the internal area of each of the dried ginseng is calculated from the image information of the dried ginseng. Subsequently, the light and dark values calculated from the respective ginseng are compared and analyzed with the light and dark values of the graded dry ginseng, respectively, to determine the quality grade of the respective dry ginseng.

This quality inspection method of ginseng can not only objectively produce a large number of quality ginseng results, but also reduce the error rate according to grading. In addition, a single computed tomography scans a large amount of ginseng more quickly. Can be.

In addition, it is cheaper than dry ginseng test cost using red ginseng discriminator and dry ginseng quality test cost using MRI, and it takes less time than analysis time of dry ginseng using MRI, and it is less common than other ginsengs with uneven moisture content or less than 14% water content. The analysis can be performed without error.

Hereinafter, the present invention will be described in more detail.

1 is a diagram schematically showing an X-Ray CT device applied to inspect the quality of dried ginseng.

X-ray CT device shown in Figure 1 is largely X-ray generation unit (radiation source; 100), the collimator (110), the detection unit (Radiation Detector; 130), the operation unit (Mechanical manipulator; 140) and the computer 150 Include.

The X-ray generator 100 is a unit that generates X-rays having a short wavelength, and the collimeter 110 is irradiated with a predetermined amount to the test object S to analyze the X-rays generated by the X-ray generator. The blocking member for selectively blocking the amount of X-rays irradiated to the test object. At this time, the test body S is located on the test stage 120 of the CT device. The detector 130 is composed of observation units such as crystals and photodiodes to detect the amount and intensity of X-rays transmitted through the specimen S.

The test specimen is dried ginseng, for example, dried white ginseng, dried taegeuk ginseng, red ginseng. Preferably, the test body is a dry ginseng holder including the dry ginseng. The ginseng holder consists of a combination of receiving portions having a space for accommodating the ginseng.

The operation unit 140 serves to cause the test object S loaded on the stage 120 to move relatively accurately with respect to the X-ray generation unit 100 and the detection unit 130. The information measured by the detection unit 130 is sent to a computer.

The computer rearranges the information measured by the detection unit in two dimensions to form a computer tomography image by reconstructing it into one image data for the test object S, and to generate the image information about the test object from the formed computer tomography picture. Calculate the contrast value of the specimen tomography.

That is, a computer tomography (CT) device having the above-described configuration is a diagnostic device capable of observing a test object using X-rays, and can measure and reconstruct information of the test object in multiple directions. The difference (± 0.5%) of the slight absorption energy coefficient inside can be displayed in an image.

Hereinafter, the principle of X-ray computed tomography will be described in more detail. After placing the specimen S on the stage 120 of the X-Ray CT apparatus, the X-ray generator 100 and the detector 130 positioned opposite to the specimen S are disposed on the specimen. While rotating (S), an X-ray having a predetermined line width is irradiated to the cross section of the test object (S).

The X-rays are absorbed and detected by the detector 130 after passing through the test object S at various angles. The X-rays absorbed by the detector 130 are signaled as one-dimensional information by the detector 130 and provided to the computer 150, and the computer rearranges the information two-dimensionally, thereby inspecting the specimen S. It is reconstructed into one image data for. The reconstructed image data is an X-ray CT photograph.

At this time, since the X-rays pass only the cross section of the inspection object to be inspected, the reconstructed image is formed as a complete two-dimensional image containing no information other than the tomographic plane. In addition, since the line flux of the X-rays is narrow, the influence of scattering property is very small as compared with general tomography, and high detection efficiency is obtained.

The computed tomography formed as described above includes image information about the specimen and black and white contrast values of the specimen. These black and white contrast values are used as a measure for grading the quality of the tomogram dried ginseng.

The X-ray computed tomography apparatus using the above-described principles can not only tomographically photograph the dried ginseng into longitudinal, transverse, coronal and sagittal planes without changing the positions of white ginseng, taeguksam, red ginseng, etc. As it is possible to image as shown in Figure 4c it is useful for the determination of the quality of the internal structure of the ginseng (with or without the pore and inner bag), that is, the quality of the ginseng.

According to an embodiment of the present invention, the quality grades of the dried ginseng may be determined by using the computed tomography of the computed tomography and the computed tomography of the dried ginseng.

In addition, judging the quality grade of the dried ginseng according to another embodiment of the present invention, first extracting the image information of each of the dried ginseng from the computed tomography of the tossed shot ginseng for each of the dried ginseng from the image information of the extracted ginseng Calculate the contrast value. In addition, the contrast values calculated from the respective dry ginseng are compared to the standard contrast values of the graded dry ginseng, respectively.

Here, the numerical value of the contrast is preferably a contrast ratio of the computed tomography showing the pore size and the number of pores formed in the internal tissue of the dried ginseng and the density of the tissue.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples are only presented to aid the understanding of the present invention, and the present invention is not limited by the following examples.

<Example 1>

FIG. 2 is a flowchart illustrating a method for inspecting quality ginseng using X-ray computed tomography apparatus according to Example 1 of the present invention.

As shown in Figure 2, during the computed tomography to insert a dry ginseng in the gun ginseng holder to have a stacked structure of the ginseng to accommodate the ginseng in the dry ginseng holder. Consists of parts, to facilitate the location of dry ginseng.

After that, X-ray computed tomography of the ginseng is carried out as if scanning the ginseng existing in the holder using an X-ray computer tomography apparatus to obtain computer tomography (hereinafter referred to as CT). (Step S120)

To describe the computed tomography of the dried ginseng in detail, first set the position coordinates for tomography the dried ginseng accommodated in the dry ginseng holder. Thereafter, the X-ray generator and the detector of the X-ray computer imaging apparatus rotate the periphery of the dried ginseng holder to irradiate the dried ginseng with X-rays having a predetermined line width at a predetermined time difference. Thereafter, the intensity of X-rays transmitted through the dried ginseng is measured (detected) by the detection unit and then provided to a computer, thereby obtaining an X-ray computed tomography photograph having an image of the cross section of the specimen.

Here, the dry ginseng applied to the x-ray tomography apparatus includes all of white ginseng, taegeuk ginseng, and red ginseng. The X-ray computed tomography scans the ginsengs accommodated in the dry ginseng holder in a first direction, ie, in the axial direction of the dry ginseng, in a direction perpendicular to the axial direction, or in an oblique oblique direction to the axial direction.

In addition, as the number of dry ginseng holders constituting the dry ginseng holder can accommodate a larger number of dry ginseng, the inspection time of X-ray tomography per root of the dried ginseng can be further shortened. The dry ginseng holder can freely add or subtract the number of accommodating portions according to the size of the inspection space of the x-ray tomography apparatus.

Subsequently, the quality grade of the ginseng is determined by analyzing the x-ray tomography photographs of the tomography ginseng.

Here, the quality grading of the dried ginseng can be determined by comparing and analyzing the X-ray computed tomography photograph representing the shape of the internal tissue of the ginseng and the x-ray computed tomography photograph of the unidentified graded ginseng. The photographed part represents an empty space (inner cavity) in the dry ginseng, and the part photographed in white in the ginseng represents the internal structure of the ginseng. Based on the X-ray computed tomography photograph, the discriminator judges the quality grade of the dried ginseng by grasping the degree of formation of the space (the size of the pores and the number of the pores) existing in the ginseng.

As such, by analyzing the degree of space formation inside the ginseng using a computed tomography photograph showing the internal structure of the ginseng, it is possible to examine the quality of the ginseng more accurately and objectively. In addition, a large amount of ginseng can be analyzed more quickly at a time, which can effectively reduce the inspection time of the quality grade of the ginseng. In addition, even if you are not expert ginseng differentiation can be inspected faster than the ginseng can reduce the inspection cost.

In addition, the quality inspection method of the ginseng using the X-ray computed tomography device takes a lower cost than the quality inspection cost using the MRI, less time than the analysis time of the dried ginseng using the MRI, and the moisture content is incomplete or Analysis of dried ginseng with a content of less than 14% can be easily performed without errors.

<Example 2>

3 is a process flowchart showing a red ginseng quality inspection method using an X-ray computed tomography apparatus according to a second embodiment of the present invention.

As shown in FIG. 3, first, red ginseng is accommodated in a dry ginseng holder including a dry ginseng receiving portion having a space for independently receiving red ginseng (step S210). The dry ginseng holder is formed of a combination of the receiving portions.

Subsequently, the positions of the red ginseng accommodated in the receiving portions of the dry ginseng holder are respectively determined (step S220).

Subsequently, after determining the positions of the red ginseng accommodated in the accommodating portion of the dry ginseng holder, the computed tomography of the red ginseng accommodated in the dry ginseng holder is performed using an X-ray computed tomography apparatus (step S230).

Subsequently, the computed tomography photograph of the computed tomography of the red ginseng is obtained to extract the image information for each of the red ginseng from the computed tomography (step S240).

The image information is calculated by calculating the internal cross-sectional area of each of the red ginseng shown in the computed tomography, and the size and size of the pores and the density of the internal tissue of the red ginseng This is the information represented by the contrast.

At this time. The black images in the computed tomography show internal pores present in red ginseng, and the white portions in red ginseng show the dense internal structure of red ginseng.

Subsequently, a contrast value for the internal cross-sectional area of each of the red ginseng is calculated from the image information of the red ginseng (step S250).

The contrast value is data obtained by quantifying the size of the pores (Size) and the number of the pores of the red ginseng and the degree of density of the internal tissues of the red ginseng in black and white contrast ratio, respectively.

Subsequently, the quality level of each of the red ginseng is determined by comparing and analyzing the light and dark values calculated from the respective red ginsengs to the standard light and dark levels of the red ginsengs which have been previously graded (step S260).

That is, the red ginseng accommodated in the first accommodating part of the holder when the contrast level of the higher grade red ginseng is 80% or more, the contrast level of the intermediate red ginseng is 80 to 60%, and the contrast level of the lower red ginseng is 60% or less, respectively. The red ginseng is classified as intermediate when the contrast level is 75%. In addition, if the light and dark value of the red ginseng accommodated in the tenth accommodating portion of the holder is 95%, the red ginseng is classified as higher.

This quality inspection method of red ginseng can not only objectively check the quality of the results of a large number of red ginseng, but also reduce the error rate due to the selection of the grades, and it is effective to examine the grade of large amounts of red ginseng with only one computed tomography. Has In addition, it is cheaper than the cost of red ginseng test using red ginseng appraiser and red ginseng quality test using MRI, and it takes less time than analysis time of red ginseng using MRI, and analyzes red ginseng with less than 14% moisture content without error. Can be.

Hereinafter, the present invention will be described with reference to experimental examples.

Experimental Example 1

Computed tomography of red ginseng with moisture content of 14% or more by placing a ginseng holder containing 50 red ginseng in an X-ray computed tomography device and then tomography the cross section of the dried ginseng contained in the holder at 3 mm intervals. Obtained. Computed tomography photographs showing voids and normal tissues inside the red ginseng are shown in FIGS. 4A-4C.

Experimental Example 2

In the same manner as in Experimental Example 1, CT images of red ginsengs having a moisture content of less than 14% were obtained, but computed tomography of the red ginsengs was carried out using dry ginseng holders containing 100 red ginseng instead of 50 red ginseng holders.

Experimental Example 3

CT pictures of the red ginseng were obtained in the same manner as in Experimental Example 1, but the single red ginseng was computed tomography in the longitudinal direction. A longitudinal cross-sectional CT picture of the red ginseng is shown in FIG. 5.

Comparative Example 1

MRI photographs were obtained by tomography of 50 red ginsengs having a moisture content of 14% or more using an MRI apparatus.

Comparative Example 2

MRI photographs were obtained by tomography of 100 red ginsengs with a moisture content of less than 14% using an MRI apparatus.

Exam evaluation result

Computed tomography pictures (Figs. 4a and 4b) of the red ginseng obtained in Experimental Example 1 and Experimental Example 2 is an image of multi-scanning from the upper end to the lower end of the dried ginseng holder accommodated in the holder, a plurality of It shows the shape of internal structure of red ginseng. At this time, the black image shows the empty space in the red ginseng.

In addition, the CT measurement time when tomography 50 red ginseng tomography as shown in Experimental Example 1 and tomography 100 red ginseng as shown in Experimental Example 2 using the X-ray computed tomography apparatus is about the same 5 seconds. However, the CT measurement time per one red ginseng was found that Experimental Example 2 is smaller. In other words, when tomography of red ginseng using the red ginseng holder having more red ginseng receptacles, the measurement time per one red ginseng decreased.

As shown in Table 1, the grading time of red ginseng using a computed tomography device is faster than the measurement time of red ginseng using MRI, and the change in moisture content contained in the red ginseng compared to the analysis method of red ginseng using MRI. Analysis error is very small.

Number of receptacles in holder (pcs)  Number of red ginseng (dog) Measuring time  Measurement time per one red ginseng Analysis error degree Experimental Example 1 50 50 1 sec 0.02 seconds Small error Experimental Example 2 100 100 1 sec 0.01 sec Small error Comparative Example 1 50 50 8 minutes 31 seconds 10.22 seconds Large error Comparative Example 2 100 100 8 minutes 31 seconds 5.11 seconds Large error

As described above, the quality inspection method of dried ginseng using an X-ray computed tomography apparatus can accurately and quickly photograph internal tissues of a large amount of dried ginseng such as red ginseng and Taegeuk ginseng at once.

In addition, it is possible to effectively reduce the grade inspection error rate of the dried ginseng by more objectively determining the degree of void formation of the dried ginseng on the basis of the obtained X-ray computed tomography photograph. In addition, when computed tomography of the dried ginseng using a gun ginseng holder consisting of a plurality of ginseng receiving portion can be effectively shortened the measurement time of computed tomography per one ginseng.

In addition, the inspection cost is cheaper than the quality inspection cost using the dry ginseng differentiator and MRI device, less analysis time is required, and analysis of dry ginseng having a moisture content of less than 14% can be performed without error.

Claims (9)

delete delete delete delete delete delete delete delete (a) receiving the ginseng in a ginseng holder consisting of a ginseng receiving portion having a space for independently receiving the ginseng; (b) computed tomography of the dried ginseng contained in the dry ginseng holder using an x-ray computed tomography device; (c) extracting image information for each of the dried ginseng from the computed tomography of the tomography dried ginseng; (d) calculating a contrast value for the inner area of each of the dried ginseng from the image information of the dried ginseng; And (e) the quality of the dried ginseng using a computed tomography device comprising comparing and analyzing the light and dark values calculated from the respective dry ginseng to the standard light and dark values of the graded dry ginseng. method of inspection.

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