Equipment for preparing peanut membrane extract containing proanthocyanidins with concentration of more than 50%

Abstract

The utility model discloses equipment for preparing a peanut membrane extract containing proanthocyanidins with the concentration of more than 50%. The equipment comprises a base, the shell is connected with the base, and a containing cavity is defined by the shell and the base; the filter cartridge is accommodated in the accommodating cavity and comprises a cartridge body which is detachably connected with the base; the top cover is arranged on the cylinder body, the top cover is detachably connected with the cylinder body, an inner cavity is defined, and the inner cavity is used for containing a peanut film; the retaining ring is respectively connected with the barrel and the top cover to limit the top cover to move relative to the barrel; and the driving device is arranged on the base, is in transmission connection with the cylinder body and is used for driving the filter cylinder to rotate along the circumferential direction. The device can prevent expanded peanut membranes from entering filtrate, improves the filtering effect, increases the yield, prepares peanut membrane extracts containing proanthocyanidins with the concentration of more than 50%, and plays roles in regulating blood sugar and body fat, resisting aging and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of peanut film extraction, particularly to a device capable of preparing peanut film extract containing proanthocyanidins with a concentration of more than 50%. BACKGROUND

[0002] Peanut film is a thin film structure on the outer layer of peanut kernels, and contains high concentrations of proanthocyanidins. It has significant effects on anti-aging, anti-inflammatory, reducing body fat, and regulating blood sugar. With the continued strong demand for global health products, the demand for peanut film proanthocyanidins will rapidly increase in the future. In the existing technology for preparing peanut film extract containing high concentrations of proanthocyanidins, when a filter cartridge type extraction device is used for solid-liquid separation of materials containing peanut film and other easily expandable materials, the following technical defects exist. When the filter cartridge is heated for extraction in the extraction device (such as an extraction tank), the peanut film expands and floats upward due to heating, generating a large upward thrust that easily pushes open the lid of the filter cartridge, causing the lid of the filter cartridge to form an opening. When the filter cartridge is transferred to a filtering device for centrifugal deslagging after extraction is completed, the peanut film will escape from the gap between the lid and the cartridge body under the action of centrifugal force, causing material loss and contamination of the filtrate, which seriously restricts the improvement of separation efficiency and product quality.

[0003] Therefore, there is an urgent need to develop an integrated peanut film filtering solution that can adapt to multiple process conditions. SUMMARY

[0004] The utility model aims at solving the problem that the peanut film in the filter cartridge easily pushes open the lid during extraction in the prior art, causing the peanut film to escape from the gap during filtration and contaminating the filtrate. The utility model provides a device for preparing peanut film extract containing proanthocyanidins with a concentration of more than 50%, which can prevent the peanut film from expanding into the filtrate, improve the filtration effect, increase the yield, and prepare peanut film extract containing proanthocyanidins with a concentration of more than 50%.

[0005] To solve the above technical problems, an embodiment of the utility model discloses a device for preparing peanut film extract containing proanthocyanidins with a concentration of more than 50%, which comprises: a base; a shell connected with the base, the shell and the base defining a containing cavity; a filter cartridge contained in the containing cavity, the filter cartridge comprising: a cartridge body detachably connected with the base; a top cover provided on the cartridge body, the top cover being detachably connected with the cartridge body and defining an inner cavity for containing peanut film; a clasp connected with the cartridge body and the top cover respectively to restrict the movement of the top cover relative to the cartridge body; and a driving device provided on the base, the driving device being in transmission connection with the cartridge body to drive the filter cartridge to rotate circumferentially.

[0006] According to the technical scheme, the inner cavity of the filter cartridge contains the peanut membrane, the filter cartridge is installed in the containing cavity defined by the base and the shell, the driving device can drive the filter cartridge to rotate, and the peanut membrane is driven to centrifugally move in the filter cartridge, so that the peanut membrane is separated from the extraction liquid.

[0007] In addition, the buckle is arranged on the filter cartridge to limit the movement of the top cover relative to the cylinder body during the filtering process, so that the peanut membrane is effectively prevented from entering the filtrate through the gap between the top cover and the cylinder body under the action of the centrifugal force after swelling, the filtering effect is improved, the yield is improved, and the output benefit is significantly improved.

[0008] According to another specific embodiment of the present application, the embodiment of the present application discloses a device, the cylinder body has a connecting beam, and the two ends of the connecting beam are connected with the side wall of the cylinder body along the radial direction of the cylinder body; the filter cartridge comprises two top covers, and the two top covers are arranged on the opposite sides of the connecting beam along the radial direction; the filter cartridge comprises a plurality of buckles, and the plurality of buckles are connected between each top cover and the side wall of the cylinder body and between each top cover and the connecting beam.

[0009] According to the technical scheme, the device of the embodiment of the present application can ensure the stable connection between the two top covers and the cylinder body through the design of the connecting beam and the two radially spaced top covers and the plurality of buckles, and prevent the top cover from loosening when the filter cartridge rotates at high speed.

[0010] According to another specific embodiment of the present application, the embodiment of the present application discloses a device, the filter cartridge comprises six buckles, the six buckles form two buckle groups, and the two buckle groups correspond to the two top covers; each buckle group has three buckles, and the three buckles are a first buckle, a second buckle and a third buckle, wherein the first buckle is connected with the top cover and the side wall of the cylinder body, the second buckle is connected with the top cover and the connecting beam, the third buckle is connected with the top cover and the connecting beam, and the second buckle and the third buckle are arranged at intervals along the radial direction.

[0011] According to the technical scheme, the device of the embodiment of the present application can fix the top cover at multiple points of the side wall of the cylinder body and the connecting beam, greatly enhances the structural firmness, and avoids displacement of the top cover during the filtering process.

[0012] According to another specific embodiment of the present application, the embodiment of the present application discloses a kind of equipment, the first buckle ring includes: first buckle, be located in the barrel, the first buckle has first through-hole;Second buckle, be located in the top cover, the second buckle has second through-hole;Connecting pin, along the radial direction, the connecting pin sequentially passes through the first through-hole and the second through-hole, and is respectively connected with the first buckle and the second buckle.

[0013] By using the above technical scheme, the first buckle, the second buckle and the connecting pin can be simply connected, so that the top cover and the barrel sidewall can be quickly disassembled and assembled without tools, which is convenient for daily maintenance, cleaning and component replacement.

[0014] According to another specific embodiment of the present application, the embodiment of the present application discloses a kind of equipment, the first buckle ring, the second buckle ring and the third buckle ring are the same structure.

[0015] According to another specific embodiment of the present application, the embodiment of the present application discloses a kind of equipment, along the axial direction of the barrel, the cross section of the barrel sidewall is annular, and each top cover is fan-shaped.

[0016] According to another specific embodiment of the present application, the embodiment of the present application discloses a kind of equipment, the filter cartridge further includes a bottom cover, which is arranged in the barrel, and the bottom cover is rotatably connected with the barrel, and the bottom cover, the barrel and the top cover jointly define the inner cavity.

[0017] By using the above technical scheme, the equipment of the present application can increase the bottom cover rotatably connected with the barrel, so that the bottom cover, the barrel and the top cover jointly define the inner cavity, and the peanut film after filtration can be easily taken out.

[0018] According to another specific embodiment of the present application, the embodiment of the present application discloses a kind of equipment, the filter cartridge includes two bottom covers, along the radial direction, one end of each bottom cover is rotatably connected with the barrel, and the other end of each bottom cover is connected with the barrel.

[0019] By using the above technical scheme, the equipment of the present application can provide a flexible opening and closing mode by arranging two bottom covers and adopting the mode of one end rotatably connected and the other end connected, which simplifies the operation steps of loading and unloading materials (such as peanut film), and improves the production efficiency.

[0020] According to another specific embodiment of the present application, the embodiment of the present application discloses a kind of equipment, the other end of each bottom cover has a clamping piece, the sidewall of the barrel has a clamping groove corresponding to the clamping piece, and the clamping piece extends into the clamping groove to make the bottom cover and the sidewall of the barrel clamped.

[0021] According to another specific embodiment of the present application, the embodiment of the present application discloses a device, each of the bottom cover is a fan shape.

[0022] According to another specific embodiment of the present application, the embodiment of the present application discloses a device, the shell comprises an outer cover, the outer cover is rotationally connected with the shell, the outer cover, the shell and the base collectively define the containing cavity.

[0023] By adopting the above technical scheme, the device of the embodiment of the present application can be conveniently opened by the rotational connection of the outer cover and the shell to enter the inside of the filter cartridge for maintenance or feeding, and meanwhile, the outer cover can keep the containing cavity sealed when closed to reduce the entry of external pollutants.

[0024] According to another specific embodiment of the present application, the embodiment of the present application discloses a device, the device further comprises a liquid outlet part, the liquid outlet part has a liquid outlet channel and a liquid outlet port which are in communication with each other, the liquid outlet port is arranged on the base, and the liquid outlet channel is in communication with the containing cavity.

[0025] By adopting the above technical scheme, the device of the embodiment of the present application can effectively collect and guide the filtered extract liquid to be discharged from the liquid outlet port by arranging a special liquid outlet channel and a liquid outlet port, so that continuous and uninterrupted filtering operation is realized, and the practicability and production efficiency of the device are improved.

[0026] According to another specific embodiment of the present application, the embodiment of the present application discloses a device, the device further comprises a control box, the control box is arranged on the base and is electrically connected with the driving device.

[0027] By adopting the above technical scheme, the device of the embodiment of the present application can realize automatic control of the filter cartridge rotating speed, running time and other parameters by arranging the control box and electrically connecting with the driving device, so that the operation accuracy and convenience are improved, manual intervention is reduced, and the device is more intelligent.

[0028] In order to make the above content of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The device of the embodiment of the present application is shown in a perspective view Figure 1 ;

[0030] Figure 2 The device of the embodiment of the present application is shown in a perspective view Figure 2 , wherein the shell is a transparent view and the outer cover is hidden;

[0031] Figure 3 A perspective view of the filter cartridge of the embodiment of the present application is shown, wherein the snap ring is hidden;

[0032] Figure 4 A top view of the filter cartridge of the embodiment of the present application is shown, wherein one snap ring set is shown;

[0033] Figure 5 A perspective view of the filter cartridge of the embodiment of the present application is shown, wherein the snap ring is hidden; Figure 4 A partial enlarged view of the middle region A. DETAILED DESCRIPTION

[0034] The above description merely illustrates the preferred embodiments of the present application. The specific embodiments are not intended to limit the scope of the present application. The skilled in the art can easily understand other advantages and functions of the present application from the description of the present application. Although the present application is described in connection with the preferred embodiments, it is not intended to limit the present application to the specific forms and it is intended to cover all modifications and alternatives that can be derived from the description of the present application. The present application can be implemented in other specific forms without departing from the spirit and essential characteristics of the present application. The embodiments described above are merely illustrative of the present application and should not be used in a limiting sense. The scope of the present application should be determined by the appended claims.

[0035] It should be noted that in this specification, similar reference numbers and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of the present embodiments, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are merely for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application.

[0037] The terms "first", "second", and the like are merely used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments, it should also be noted that unless specifically defined and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments can be understood according to the specific circumstances.

[0039] In order to make the purpose, technical scheme and advantages of the utility model clearer, the embodiments of the utility model will be further described in detail below with reference to the drawings.

[0040] Figure 1 A perspective view of an apparatus for preparing peanut membrane extract containing proanthocyanidins with a concentration of 50% or more is shown according to some embodiments of the present application.

[0041] Reference Figure 1 , an apparatus 100 for preparing peanut membrane extract containing proanthocyanidins with a concentration of 50% or more according to an embodiment of the present application, comprising a base 110 and a shell 120. Wherein, along the height direction (as shown in the Z direction of Figure 1 , the shell 120 is arranged above the base 110, and the shell 120 is connected with the base 110. In combination Figure 2 , the shell 120 and the base 110 define a containing cavity 120a.

[0042] As Figure 2 shown, the apparatus 100 further comprises a filter cartridge 130 and a driving device 140. Exemplarily, the shell 120 has an outer cover 121, which is rotatably connected with the top end of the shell 120, so that the outer cover 121 can be opened outwardly, and the shell 120 is further provided with a buckle 122 to limit the movement of the outer cover 121 relative to the shell 120 during operation, so as to avoid the entry of pollutants into the containing cavity 120a and affect the filtering effect. The base 110, the shell 120 and the outer cover 121 jointly define the above-mentioned containing cavity 120a, so that after the outer cover 121 is opened, the filter cartridge 130 can be placed in the shell 120 along the height direction Z, i.e. the filter cartridge 130 is contained in the containing cavity 120a. The driving device 140 is arranged on the base 110, and the driving device 140 is connected with the filter cartridge 130, so that the driving device 140 can drive the filter cartridge 130 to rotate along the circumferential direction (as shown in the R direction of Figure 2 ).

[0043] Reference Figure 3 and Figure 4 in combination Figure 2 , the filter cartridge 130 according to an embodiment of the present application comprises a cartridge body 131, a top cover 132, a buckle 133 and a bottom cover 134.

[0044] Specifically, as shown in Figure 3 and Figure 2 the barrel 131 is detachably connected with the base 110 in the accommodating cavity 120a, and the top cover 132 is arranged on the barrel 131, and the barrel 131 and the top cover 132 define the inner cavity 130a so as to enable the peanut film to be placed in the inner cavity 130a.

[0045] The skilled in the art can understand that since the barrel 131 of the filter cartridge 130 is detachably connected with the base 110, i.e., the worker can take out and put in the filter cartridge 130 from the equipment 100. Thus, after the peanut film is placed in the filter cartridge 130, the filter cartridge 130 can be first put into the extraction equipment (for example, an extraction tank) for extraction, and then the filter cartridge 130 loaded with the extracted peanut film is put into the equipment 100 for filtration, so as to improve the work efficiency and save the cost. Exemplarily, the plurality of filter cartridges 130 can be used to place the peanut film in the present application, so as to alternately perform the extraction and the filtration, save the time of the worker for replacing and cleaning the filter cartridge 130, and can significantly improve the output benefit and save the production cost.

[0046] Through the transmission connection between the driving device 140 and the barrel 131, the barrel 131 is driven to rotate along the circumferential direction R, so that the peanut film in the inner cavity 130a performs the centrifugal motion, thereby enabling the peanut film to be separated from the extraction liquid. It should be noted that the present application does not limit the connection mode between the driving device 140 and the barrel 131, as long as the driving device 140 can drive the barrel 131 to rotate. For example, the driving device 140 can be a motor, and the barrel 131 is connected with the motor through a transmission shaft (not shown in the figure).

[0047] Continuing to refer to Figure 2 and Figure 3 the top cover 132 of the present application is detachably connected with the barrel 131, i.e., the top cover 132 can be taken off from the barrel 131, so as to facilitate the worker to place the peanut film into the inner cavity 130a of the filter cartridge 130. Moreover, the filter cartridge 130 further has the clasp 133 connected with the barrel 131 and the top cover 132 respectively, so as to limit the movement of the top cover 132 relative to the barrel 131, prevent the top cover 132 from being opened by the peanut film due to the thermal expansion, and enable the peanut film to escape from the gap between the top cover 132 and the barrel 131 under the action of the centrifugal force when the filter cartridge 130 after the extraction is transferred to the equipment 100 for the centrifugal deslagging.

[0048] In summary, the inner cavity 130a of the filter cartridge 130 contains the peanut membrane, so that the filter cartridge 130 is installed in the containing cavity 120a defined by the base 110 and the shell 120, so that the driving device 140 can drive the filter cartridge 130 to rotate, driving the peanut membrane to centrifugally move in the filter cartridge 130, so that the peanut membrane is separated from the extraction liquid. The detachable filter cartridge 130 can be recycled in the device 100 and the extraction device, saving the time of the staff to replace and clean the filter cartridge 130, and saving the production cost.

[0049] In addition, by providing the snap ring 133 on the filter cartridge 130, the movement of the top cover 132 relative to the cylinder body 131 is limited during the filtering process, which can effectively prevent the peanut membrane from entering the filtrate through the gap between the top cover 132 and the cylinder body 131 under the action of the centrifugal force after swelling, improve the filtering effect, improve the yield, and significantly improve the output benefit.

[0050] Exemplarily, as shown in Figure 1 The device 100 of the embodiment of the present application further includes a liquid outlet portion, which has a liquid outlet channel (not shown in the figure) and a liquid outlet 150 that are in communication with each other. The liquid outlet 150 is arranged on the base 110, and the liquid outlet channel is in communication with the containing cavity 120a, so that the extraction liquid obtained by the solid-liquid separation of the peanut membrane after the centrifugal movement of the peanut membrane in the filter cartridge 130 can be collected at the liquid outlet 150 after passing through the liquid outlet channel from the containing cavity 120a, and then subjected to subsequent processing (for example, concentration, sterilization and drying).

[0051] Exemplarily, as shown in Figure 1 The device 100 of the embodiment of the present application further includes a control box 160. The control box 160 is arranged on the base 110, and the control box 160 is electrically connected with the driving device 140.

[0052] Exemplarily, as shown in Figure 1 and Figure 4 The outer cover 121 and the top cover 132 of the embodiment of the present application are each provided with a handle 170, which facilitates the staff to operate the handle 170 to open and close the outer cover 121, so as to access the containing cavity 120a of the shell 120, and the staff can operate the handle to remove and clean the top cover 132, so as to facilitate the loading and unloading of materials (for example, the peanut membrane).

[0053] Exemplarily, as shown in Figure 4 The cylinder body 131 has a connecting beam 1311, and the two ends of the connecting beam 1311 are respectively connected with the side wall 131a of the cylinder body 131 along the radial direction of the cylinder body 131 (as shown in the X direction in Figure 3 The filter cartridge 130 includes two top covers 132 and six snap rings 133, and the two top covers 132 are arranged on the opposite sides of the connecting beam 1311 along the radial direction X. The six snap rings 133 form two snap ring groups, and the two snap ring groups correspond to the two top covers 132.

[0054] For example, along the axial direction of the cylinder 131 (i.e., the height direction of the device 100, such as...) Figure 3 As shown in the Z-direction), as Figure 4 As shown, the side wall 131a of the cylinder 131 has an annular cross-section, and each of the two top covers 132 is fan-shaped. However, this is not a limitation. The embodiments of this application do not limit the cross-section of the cylinder 131 and the shape of the top covers 132. For example, in other possible embodiments, the cross-section of the cylinder 131 can also be square, elliptical, triangular, etc., and correspondingly, the top covers 132 can also be square, semi-circular, triangular, etc. Furthermore, the embodiments of this application do not specifically limit the number of top covers 132. For example, in other possible embodiments, the number of top covers 132 can also be one, three, four, five, or more.

[0055] Technicians will understand that the two buckle assemblies have the same structure, and the arrangement of the two buckle assemblies on the corresponding top cover 132 is also the same. For ease of understanding, the following detailed explanation uses a top cover 132 and the corresponding buckle assembly as an example, where the three buckles 133 in the buckle assembly are referred to as the first buckle 1331, the second buckle 1332, and the third buckle 1333.

[0056] Specifically, such as Figure 4 As shown, the first retaining ring 1331 is connected to the top cover 132 and the side wall 131a of the cylinder 131, the second retaining ring 1332 is connected to the top cover 132 and the connecting beam 1311, and the third retaining ring 1333 is connected to the top cover 132 and the connecting beam 1311. Along the radial direction X, the second retaining ring 1332 and the third retaining ring 1333 are spaced apart. That is, multiple retaining rings 133 of the filter cartridge 130 are respectively connected between each top cover 132 and the side wall 131a of the cylinder 131 and between each top cover 132 and the connecting beam 1311, to restrict the movement of the top cover 132 relative to the side wall 131a of the cylinder 131 and the connecting beam 1311, preventing the peanut membrane from expanding and opening the top cover 132, thus creating a gap between the top cover 132 and the side wall 131a and the connecting beam 1311.

[0057] For example, such as Figure 5As shown, the first buckle ring 1331 comprises a first buckle 1331a, a second buckle 1331b and a connecting pin 1331c. The first buckle 1331a is arranged on the side wall 131a of the barrel 131, the second buckle 1331b is arranged on the top cover 132, and three first through holes 1331d are arranged on the first buckle 1331a, two second through holes 1331e are arranged on the second buckle 1331b, the three first through holes 1331d and the two second through holes 1331e are arranged in the radial direction X, the connecting pin 1331c sequentially passes through the three first through holes 1331d and the two second through holes 1331e, and is respectively clamped with the first buckle 1331a and the second buckle 1331b, so as to limit the movement of the first buckle 1331a relative to the second buckle 1331b, thereby limiting the movement of the top cover 132 relative to the side wall 131a of the barrel 131.

[0058] The skilled in the art can understand that the first buckle ring 1331, the second buckle ring 1332 and the third buckle ring 1333 of the embodiments of the present application have the same structure. However, the embodiments of the present application do not specifically limit the structure of the first buckle ring 1331, the second buckle ring 1332 and the third buckle ring 1333, as long as they can limit the movement of the top cover 132 relative to the side wall 131a of the barrel 131 and the connecting beam 1311. For example, in other possible embodiments, the structures of the first buckle ring 1331, the second buckle ring 1332 and the third buckle ring 1333 can also be different.

[0059] In addition, the embodiments of the present application do not limit the number of buckle rings 133 in each buckle ring group. For example, in other possible embodiments, the number of buckle rings 133 can also be two, four, five, six or more.

[0060] For example, continuing to refer to Figure 3 The filter cartridge 130 of the embodiments of the present application further comprises a bottom cover 134. The bottom cover 134 is arranged on the barrel 131, so that the bottom cover 134, the barrel 131 and the top cover 132 jointly define an inner cavity 130a capable of accommodating peanut film, and the bottom cover 134 is rotationally connected with the barrel 131, so that after the filtration is completed, the worker takes out the filter cartridge 130 from the accommodating cavity 120a of the equipment 100, can open the bottom cover 134 to take out the peanut film in the inner cavity 130a of the filter cartridge 130, facilitate the cleaning and replacement of the filter cartridge 130, and further improve the work efficiency.

[0061] For example, as Figure 3As shown, the filter cartridge 130 of the embodiment of the present application includes two bottom covers 134, each of which is rotationally connected to the cartridge body 131 at one end (not shown in the figure) and is clamped to the side wall 131a of the cartridge body 131 at the other end 1341. Specifically, the other end 1341 of each bottom cover 134 is provided with a clamping piece 134a, and the side wall 131a of the cartridge body 131 is provided with a clamping groove 131b corresponding to the clamping piece 134a. When the bottom cover 134 is closed, the clamping piece 134a extends into the clamping groove 131b along the radial direction X, so that the bottom cover 134 is clamped to the side wall 131a of the cartridge body 131, thereby limiting the movement of the bottom cover 134 relative to the cartridge body 131.

[0062] Exemplarily, each bottom cover 134 is in the shape of a sector. However, the embodiment of the present application is not limited thereto, and the shape and number of the bottom covers 134 are not limited. For example, in other possible embodiments, the shape of the bottom covers 134 can also be square, semicircular, triangular, etc., and the number of the bottom covers 134 can also be one, three, four, five, or more.

[0063] The following is a process flow for preparing peanut membrane extract:

[0064] First, the peanut raw material is coarsely crushed and screened to obtain peanut membrane.

[0065] Second, the peanut membrane is placed in an extraction device for extraction. Exemplarily, the peanut membrane is placed in a filter cartridge, and the filter cartridge is then placed in an extraction device (e.g., an extraction tank).

[0066] As understood by the skilled person, during the extraction process, stirring, low-temperature ultrasonic oscillation, or other operations can be performed in the extraction device, or a shearing device can be provided in the extraction device, to finely crush the peanut membrane and improve the extraction effect.

[0067] Next, the extracted peanut membrane is placed in the device 100 for dehydration and filtration. Exemplarily, after the extraction is completed, the filter cartridge described above is removed from the extraction tank, and then placed in the device 100 of the embodiment of the present application for centrifugal filtration, to collect the extract and remove impurities.

[0068] Then, the filtered peanut membrane extract is placed in a concentration device for concentration. Exemplarily, the filtrate obtained after filtration is placed in a concentration device (e.g., a vacuum concentration machine) for concentration, to obtain the concentrated peanut membrane extract.

[0069] Finally, the concentrated peanut film extract is sterilized and dried to obtain a concentrated liquid or powder that is convenient to store and carry. Exemplarily, after the concentrated peanut film extract is sterilized by an ultra high temperature sterilization method, the concentrated peanut film extract is placed in a drying device (for example, a spray dryer or a freeze dryer) to remove the water in the concentrated peanut film extract, form a concentrated and dried powder of the peanut film extract, and finally package the powder of the peanut film extract to improve the convenience of use of the extract.

[0070] For the convenience of understanding, the preparation process of the peanut film extract of the present application and the determination of the content of specific components (for example, the total polyphenol content and proanthocyanidins) in the peanut film extract and the evaluation of the effect of inhibiting alpha-amylase are described in detail below through Examples 1 to 4.

[0071] Example 1: Preparation method of peanut film extract

[0072] After the peanut film is crushed and mixed with reverse osmosis water (RO water), it is extracted at a high temperature to obtain a peanut film primary extract, wherein the soluble solid content (Brix value) of the peanut film primary extract at 20°C is >0.8. After the extract is recovered by using the device 100, it is filtered again with a 400 mesh filter screen to obtain a peanut film filtrate. The peanut film filtrate is concentrated by using a concentrator, and the concentrated peanut film filtrate is filtered again with a 100 mesh filter screen to obtain a peanut film extract. The soluble solid content (Brix value) of the peanut film extract at 20°C is 18-20.

[0073] The peanut film extract is spray dried and sieved with a 30 mesh filter screen to obtain a peanut film extract powder.

[0074] Example 2: Detection of total polyphenol content

[0075] The peanut film contains a large amount of polyphenolic substances, which have good antioxidant activity and free radical scavenging capacity. In this embodiment, the Folin-Ciocalteu colorimetric method is used to detect the total polyphenol content, which is expressed in terms of gallic acid equivalent (GA).

[0076] 2.1 Reagents and instruments

[0077] Reagents: Folin phenol reagent (Merck, 1.09001), anhydrous sodium carbonate (Sigma, 31432), gallic acid (Sigma, G7384).

[0078] Instruments: Full-spectrum optical analyzer (BioTek Epoch).

[0079] 2.2 Experimental procedure

[0080] Prepare gallic acid standard solutions with concentrations of 0, 20, 40, 60, 80, 100 μg / mL, with three replicates for each concentration. Take 100 μL of each concentration of the standard solution in a test tube, add 500 μL of Folin-phenol reagent in turn, vortex well, and stand for 3 minutes; add 400 μL of 7.5% sodium carbonate solution, mix well, and react at room temperature for 30 minutes; measure the absorbance at 750 nm, and draw the standard curve.

[0081] After the peanut membrane extract is appropriately diluted, take 100 μL of the sample to be tested in a glass test tube, add 500 μL of Folin-phenol reagent, vortex well, and stand for 3 minutes, add 400 μL of 7.5% sodium carbonate solution, mix well, and react at room temperature for 30-60 minutes, take 200 μL to a 96-well plate, and measure the absorbance at 750 nm.

[0082] Interpolate the standard curve to obtain the equivalent concentration of gallic acid in the sample (μg GA / mL), multiply the result by the dilution factor of the sample, to obtain the total polyphenol concentration of the original extract (i.e., peanut membrane extract) (g / 100g).

[0083] 2.3 Experimental results

[0084] The total polyphenol content of the peanut membrane extract prepared by the device of the present application can reach 2.03 g / 100g, and the total polyphenol content of the peanut membrane extract powder can reach 25.94 g / 100g.

[0085] Example 3: Detection of proanthocyanidin (OPC) content

[0086] Proanthocyanidin, also known as procyanidin, is also called condensed tannin or condensed tannin, which is a general term for a large class of polyphenol compounds. Because it can produce anthocyanidin in acidic medium under heating, it is called proanthocyanidin. Those skilled in the art can understand that peanut membrane proanthocyanidin has strong antioxidant properties, can reduce the accumulation of advanced glycation end products (AGEs), regulate the level of verification factors, improve liver and kidney antioxidant indicators, delay aging by reducing oxidative damage, activating autophagy and restoring cell proliferation capacity, and can improve hyperglycemia and inhibit sugar absorption.

[0087] 3.1 Reagents and instruments

[0088] Reagents: Methanol (purity ≥ 99.9%, Spectrum), n-Butanol (purity > 99.0%, ECHO), Hydrochloric acid, Isopropanol (HPLC grade, Duksan), Formic acid (98-100%, Merck), Ferric ammonium sulfate dodecahydrate (98%, Sigmaaldrich), Procyanidin standard (UV ≥ 95%, Shyuanye).

[0089] Instrument: Ultrasonic cleaner (Delta, DC150), High performance liquid chromatograph (Waters Arc), Column (Waters XBridge C18, 5 μm, 4.6 × 250 mm), Detector (2998 PDA), Constant temperature water bath: Digisystem laboratory instrument, DSB-1000D).

[0090] 3.2 Experimental procedure

[0091] Take 0.0100 g of procyanidin standard and dilute to 10 mL with methanol. Take 0.10, 0.25, 0.50, 1.0, and 1.5 mL of the procyanidin standard solution and dilute to 10 mL with methanol. Measure the high performance liquid chromatography (HPLC) peak area at 525 nm and draw a standard curve.

[0092] Take an appropriate amount of peanut film extract and extract powder, dilute with methanol, and place in an ultrasonic cleaner for 20 minutes. After the sample is warmed to room temperature, dilute to 50 mL with methanol, mix thoroughly, and centrifuge at 4000 revolutions per minute (rpm) for 10 minutes. Take the supernatant as the test solution. Mix n-butanol and hydrochloric acid in a volume ratio of 95:5, take out 15 mL and place in a stoppered conical flask, add 0.5 mL of 2% ferric ammonium sulfate solution and stir evenly, add 2 mL of the test solution and mix thoroughly. Place the test tube in a constant temperature water bath at 100°C and heat for 40 minutes, then immediately place in ice water to cool. Filter through a 0.45 μm filter membrane and detect at 525 nm.

[0093] The measurement results are calculated using the following formula:

[0094]

[0095] Where X: procyanidin content (mg / g or mg / L); X1: concentration obtained from the standard curve (mg / mL); V: constant volume (mL); f: dilution factor; m: sample mass or volume.

[0096] 3.3 Experimental results

[0097] The peanut film extract prepared in the present application has an OPC content of 4.14%, and the peanut film extraction powder (i.e. the peanut film extract mentioned above) has an OPC content as high as 73.90%, i.e. the content is 73.9 g / 100 g.

[0098] Example 4: α-Amylase Inhibition Rate Detection

[0099] α-Amylase is an enzyme that can hydrolyze the α-1,4-glucosidic bond in the starch molecular chain, cut the starch chain into short-chain dextrin, oligosaccharide and a small amount of maltose and glucose, and rapidly reduce the viscosity of starch. Inhibiting α-amylase can delay the hydrolysis of starch, reduce the rate of hydrolysis of macromolecular starch into absorbable small molecular sugars, avoid absorption in the early small intestine, thereby slowing down the postprandial blood glucose rise and reducing the blood glucose peak.

[0100] 4.1 Reagents and Instruments

[0101] Reagents: Na2HPO4 (J.T. Baker, 3828-01), NaH2PO4 (Sigma, 04270), NaOH (Macron, 7708-1), NaCl (First Chemical, C4B07), α-Amylase (Sigma, A3176), Soluble starch (Sigma, S9765), 3,5-dinitrosalicylic acid (Sigma, D0550), Potassium sodium tartrate tetrahydrate (Sigma, 32312).

[0102] Instruments: Constant temperature water bath (TKS, WB212-B2), Full-spectrum optical analyzer (BioTek Epoch), High-speed centrifuge (Thermo, Fresco 17).

[0103] 4.2 Experimental Procedure

[0104] Terminator preparation: Take 1 g of 3,5-dinitrosalicylic acid and add it to 50 mL of deionized water, slowly add 30 g of potassium sodium tartrate, then add 20 mL of 2N NaOH, and dilute with deionized water to 100 mL.

[0105] 1% Soluble starch preparation: Take 1 g of soluble starch and dissolve it in 100 mL of phosphate buffer, slowly heat to completely dissolve, then cool to room temperature and dilute with H2O to 100 mL.

[0106] α-Amylase (10 units / mg) preparation: Take 0.0096 g of α-Amylase and dissolve it in 25 mL of phosphate buffer to prepare.

[0107] Sample Preparation: 10 mg of peanut film extract powder was dissolved in 10 mL of pure water to obtain a sample of 1 mg / mL, and pure water was used for dilution to a concentration of 0.2 mg / mL. An appropriate amount of peanut film extract solution was diluted with pure water, and the above sample was centrifuged at 10000xg for 10 min. The supernatant was used as the determination solution.

[0108] Phosphate buffer was used as the blank group. 200 μL of phosphate buffer, peanut film extract powder sample, and peanut film extract solution sample were placed in microcentrifuge tubes, one tube from each of the two tubes was used as the 0-minute reaction group, and the other tube was used as the 10-minute reaction group. 200 μL of prepared α-Amylase was added to each group, vortexed to mix, and incubated at 25°C for 10 minutes. Then, 200 μL of 1% soluble starch was added to the 0-minute group after adding the stop reagent to prevent further reaction. After mixing, the samples were incubated at 25°C for 10 minutes, and then 400 μL of stop reagent was added. After mixing, the samples were placed in boiling water for 5 minutes, cooled to room temperature, and diluted with water to the measurable range, i.e., 150 μL of the reaction sample was diluted with 850 μL of H2O. After mixing, 200 μL was added to a 96-well plate, and the absorbance was measured at 540 nm. The α-Amylase inhibition was calculated according to the following formula:

[0109] % α-Amylase inhibition =

[0110] where A 540nm Sample 10min = absorbance of the sample group 10-minute reaction group;

[0111] A 540nm Sample 0min = absorbance of the sample group 0-minute reaction group;

[0112] A 540nm Control 10min = absorbance of the blank group 10-minute reaction group;

[0113] A 540nm Control 0min = absorbance of the blank group 0-minute reaction group.

[0114] 4.3 Experimental Results

[0115] The peanut film extract prepared in the application has an inhibition rate of 54.25% on alpha-amylase at a concentration of 0.25%, and the peanut film extract powder has an inhibition rate of 46.56% on alpha-amylase at a concentration of 0.2 mg / mL, indicating that the peanut film extract prepared in the application can inhibit the absorption of sugar by inhibiting the activity of alpha-amylase, thereby regulating blood sugar.

[0116] In summary, the peanut film extract prepared by the equipment of the application contains high concentration of proanthocyanidins (the concentration of proanthocyanidins is greater than or equal to 50%), the separation efficiency of peanut film and extract is high, and the quality of peanut film extract product is improved.

[0117] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is a further detailed description of the present application and should not be construed to limit the specific embodiments of the present application to the above description. Those skilled in the art can make various changes in form and details without departing from the spirit and scope of the present application, including making a number of simple deductions or substitutions.

Claims

1. An apparatus for preparing a peanut membrane extract containing a concentration of more than 50% proanthocyanidins, characterized in that, include: Base; A housing connected to the base, the housing and the base defining a receiving cavity; A filter cartridge, housed in the receiving cavity, the filter cartridge comprising: The cylindrical body is detachably connected to the base; A top cover is provided on the cylinder body, the top cover is detachably connected to the cylinder body, and defines an inner cavity for accommodating peanut membranes; The buckles are connected to the cylinder and the top cover respectively to restrict the movement of the top cover relative to the cylinder; A driving device is provided on the base and is connected to the cylinder body for driving the filter cylinder to rotate circumferentially.

2. The device according to claim 1, characterized in that, The cylinder has a connecting beam, and along the radial direction of the cylinder, both ends of the connecting beam are respectively connected to the side wall of the cylinder; The filter cartridge includes two top covers, which are spaced apart on opposite sides of the connecting beam along the radial direction. The filter cartridge includes a plurality of buckles, which are respectively connected between each top cover and the side wall of the cartridge body and between each top cover and the connecting beam.

3. The device according to claim 2, characterized in that, The filter cartridge includes six buckles, which form two buckle groups, and the two buckle groups correspond to the two top covers. Each buckle group has three buckles, namely a first buckle, a second buckle, and a third buckle. The first buckle is connected to the top cover and the side wall of the cylinder, the second buckle is connected to the top cover and the connecting beam, and the third buckle is connected to the top cover and the connecting beam. The second buckle and the third buckle are spaced apart along the radial direction.

4. The device according to claim 3, characterized in that, The first buckle includes: A first fastener is provided on the cylinder body, and the first fastener has a first through hole; A second fastener is provided on the top cover, and the second fastener has a second through hole; A connecting pin, along the radial direction, passes sequentially through the first through hole and the second through hole, and engages with the first fastener and the second fastener respectively.

5. The device according to claim 3 or 4, characterized in that, The first buckle, the second buckle, and the third buckle have the same structure.

6. The device according to any one of claims 2 to 4, characterized in that, Along the axial direction of the cylinder, the sidewall of the cylinder has an annular cross-section, and each of the top covers is fan-shaped.

7. The device according to claim 6, characterized in that, The filter cartridge also includes a bottom cover disposed on the cylinder body. The bottom cover is rotatably connected to the cylinder body, and the bottom cover, the cylinder body, and the top cover together define the inner cavity.

8. The device according to claim 7, characterized in that, The filter cartridge includes two bottom covers, one end of each bottom cover is rotatably connected to the cartridge body along the radial direction, and the other end of each bottom cover is snapped into the cartridge body.

9. The device according to claim 8, characterized in that, Each of the bottom covers has a snap-fit ​​element at the other end, and the side wall of the cylinder has a snap-fit ​​groove corresponding to the snap-fit ​​element. The snap-fit ​​element extends into the snap-fit ​​groove so that the bottom cover snaps into the side wall of the cylinder.

10. The device according to claim 7 or 8, characterized in that, Each of the aforementioned bottom covers is fan-shaped.

11. The device according to claim 1, characterized in that, The housing includes an outer cover, which is rotatably connected to the housing, and the outer cover, the housing, and the base together define the receiving cavity.

12. The device according to claim 1, characterized in that, The device also includes a liquid outlet section, which has a liquid outlet channel and a liquid outlet that are interconnected. The liquid outlet is located on the base, and the liquid outlet channel is connected to the receiving cavity.

13. The device according to claim 1, characterized in that, The device also includes a control box, which is located on the base and electrically connected to the drive device.

Images