A preparation system and method for preparing marine flavor peptides by multi-stage fermentation

Abstract

The present invention relates to the technical field of marine flavor peptide preparation, and specifically to a preparation system and method for marine flavor peptide preparation by multi-stage fermentation, comprising a bracket, a mechanical arm being arranged on the bracket, and a crushing assembly, wherein the crushing assembly comprises a first pillar, a fixed cylinder, a second pillar, a bottom plate, a rotating ring, a pressing plate, a fixing seat, a ring cutter and a bottom groove, wherein the first pillar and the second pillar are both fixedly connected to the bracket, the fixed cylinder and the bottom plate are respectively fixedly connected to the first pillar and the second pillar, the rotating ring is rotatably connected between the fixed cylinder and the bottom plate, the pressing plate is fixedly connected to the mechanical arm, the fixing seat is fixedly connected to the bottom plate, a plurality of ring cutters are slidably connected to the fixing seat, and a bottom groove is provided at the bottom of the pressing plate. The present invention can divide raw materials into multiple portions and perform synchronous fermentation, and by dividing the raw materials into multiple portions and detecting them respectively, the error between the detection result of the fermentation product and the actual fermentation condition of the fermentation product can be reduced, thereby accurately determining the fermentation time and improving the quality of the fermentation product.

Description

Technical Field

[0001] The invention relates to the technical field of marine flavor peptide preparation, in particular to a system and a method for preparing marine flavor peptides by multi-stage fermentation. Background Art

[0002] Multi-stage fermentation is a commonly used preparation method for marine flavor peptides. It is a technology that uses a variety of different bacterial species for fermentation and has many significant advantages. Usually, in the multi-stage fermentation process, in addition to pretreatment and adjustment of the fermentation environment, the specific fermentation is mainly divided into two processes.

[0003] In the prior art, the fermentation preparation of marine flavor peptides has two main stages. Usually, two different containers are prepared for the first stage fermentation and the second stage fermentation. The subsequent fermentation stage is mainly to further improve the quality of the flavor peptides, which belongs to the post-treatment of the fermentation product. During the first and second stages of fermentation, it is necessary to detect a variety of different indicators to determine whether the first stage is completed, such as the density of microorganisms, product concentration, etc. When all the raw materials are placed in one container for fermentation, there will be a large error between the fermentation completion and the test results. Therefore, it is easy to have the problem of fermentation time being too short or too long. Therefore, a new preparation system is needed to solve this problem. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a preparation system and method for marine flavor peptides by multi-stage fermentation, which can divide the raw materials into multiple portions and ferment them simultaneously. By dividing the raw materials into multiple portions and testing them separately, the error between the detection results of the fermentation products and the actual fermentation conditions of the fermented products can be reduced, thereby accurately determining the fermentation time and improving the quality of the fermentation products.

[0005] The technical solution to achieve the purpose of the present invention is: a system and method for preparing marine flavor peptides by multi-stage fermentation, comprising a support, a mechanical arm is provided on the support, and further comprising:

[0006] A crushing assembly, the crushing assembly comprises a first pillar, a fixed cylinder, a second pillar, a bottom plate, a rotating ring, a pressure plate, a fixed seat, a ring cutter and a bottom groove, the first pillar and the second pillar are both fixedly connected to the bracket, the fixed cylinder and the bottom plate are respectively fixedly connected to the first pillar and the second pillar, the rotating ring is rotatably connected between the fixed cylinder and the bottom plate, the pressure plate is fixedly connected to the mechanical arm, the fixed seat is fixedly connected to the bottom plate, a plurality of the ring cutters are slidably connected to the fixed seat, and the bottom groove is opened at the bottom of the pressure plate;

[0007] A driving assembly, the driving assembly includes a support plate, a gear ring, a fixed block, a round rod, a fixed ring and a limit block, a plurality of the support plates are fixedly connected to the bottom plate, the gear ring is rotatably connected to the plurality of support plates, a plurality of the fixed blocks are fixedly connected to the gear ring, and a plurality of the fixed blocks are fixedly connected to the rotating ring, a plurality of the round rods are respectively slidably connected to the plurality of fixed blocks, the fixed ring is fixedly connected to the fixed cylinder, a plurality of the limit blocks are fixedly connected to the fixed ring, and a plurality of the round rods are respectively slidably connected to the plurality of limit blocks;

[0008] A fermentation component, the fermentation component includes a first fermentation tank, a second fermentation tank, a bottom pipe, a motor and a third gear, a plurality of the first fermentation tanks and a plurality of the second fermentation tanks are fixedly connected to a second support, a plurality of the bottom pipes are respectively fixedly connected between a plurality of the first fermentation tanks and a bottom plate, the motor is fixedly connected to a bracket, the third gear is fixedly connected to an output shaft of the motor, and the third gear is meshed with a gear ring.

[0009] Preferably, the fermentation component also includes a second gear, a prism and a connecting block, a plurality of the second gears are respectively rotatably connected to a plurality of support plates, a plurality of the prisms are respectively slidably connected to a plurality of the second gears, a plurality of the connecting blocks are respectively fixedly connected to the tops of a plurality of the prisms, and a plurality of the connecting blocks cooperate with the robotic arm.

[0010] Preferably, a pressing assembly is provided on the pressing plate, and the pressing assembly includes a tank body, a through hole, a rotating block and a seepage hole, the two tank bodies are fixedly connected to the pressing plate, the two through holes are opened on the pressing plate, the two rotating blocks are respectively rotatably connected to the inside of the two through holes, and the two seepage holes are respectively opened on the two rotating blocks.

[0011] Preferably, the pressing assembly also includes a rotating shaft, a partition, a rack, a first gear and a spring, the rotating shaft is fixedly connected between the two rotating blocks, the partition is fixedly connected to the inside of the bottom groove, the rack is slidably connected to the partition, the first gear is fixedly connected to the rotating shaft, the rack is meshed with the first gear, and the spring is fixedly connected between the rack and the inner wall of the bottom groove.

[0012] Preferably, a stirring assembly is provided inside the plurality of first fermentation tanks, and the stirring assembly includes a first ring, a second ring, a stirring rod and a rotating plate. The plurality of first rings and the plurality of second rings are respectively rotatably connected to the interior of the plurality of first fermentation tanks, the stirring rod is fixedly connected between the plurality of first rings and the plurality of second rings, and the plurality of rotating plates are hinged to the bottom of the plurality of first fermentation tanks through elastic hinges.

[0013] Preferably, the stirring assembly also includes a piston ring and a circular plate, the multiple piston rings are respectively slidably connected to the inside of the multiple first fermentation tanks, the multiple circular plates are respectively fixedly connected to the multiple piston rings, the stirring rods are respectively slidably connected to the multiple circular plates, and the multiple circular plates are respectively fixedly connected to the multiple prisms.

[0014] Preferably, the driving assembly also includes a rubber rod, an inner liner and a push rod, the inner liner is fixedly connected to the inside of a fixed seat, a plurality of push rods are respectively fixedly connected to a plurality of circular cutting knives, a plurality of push rods are slidably connected to the inner liner, and the rubber rod is fixedly connected to the inside of the inner liner.

[0015] Preferably, a method for using a system for preparing marine flavor peptides by multi-stage fermentation specifically comprises the following steps:

[0016] Step 1: Pour the raw materials for making marine flavor peptides into the interior of the fixed cylinder 32, pour the fermentation liquid for fermentation into the interior of the tank 51, and control the pressing plate 36 to press down through the robot arm 2, so that the raw materials in the fixed cylinder 32 are squeezed downward;

[0017] Step 2: Start the motor to drive the gear ring to rotate, so that the ring cutter rotates and shakes at the same time, thereby cutting and crushing the raw materials, and at the same time, the pressing plate is continuously pressed down, so that the chopped raw materials can leak into the interior of each first fermentation tank through the bottom pipe;

[0018] Step 3: After the pressing plate is completely pressed down into the fixed cylinder, all the raw materials are chopped, and at the same time, the fermentation liquid in the two tanks will leak downward at the same time, and then be evenly leaked into each first fermentation tank together with the raw materials. The fermentation liquid is a bacterial liquid with a concentration of .%, which also contains 3.0±0.5% glucose and 0.35% sodium chloride;

[0019] Step 4: The motor continues to drive the gear ring to rotate, thereby rotating the second gear. At this time, the prism will also rotate, and drive the circular plate and the stirring rod to rotate, so as to stir the raw materials and fermentation liquid in the first fermentation tank for fermentation. The temperature of the first fermentation tank should be controlled at 35±1°C;

[0020] Step 5: Carry out the first stage of fermentation in the first fermentation tank. The actual fermentation time of the first stage is about 4 hours. After the first stage of fermentation is completed, pour the fermentation liquid into the second fermentation tank for the second stage of fermentation. Before the second stage, it is necessary to add 3.5% concentration of bacterial liquid and 2.0±0.5 concentration of glucose in the second fermentation tank. The temperature needs to be controlled at 30±1°C during the fermentation process. The specific fermentation time is 5 hours. After the second stage is completed, all fermentation products are collected and concentrated for the third stage of fermentation. In the third stage, 3.0% concentration of bacterial liquid and 2.0±0.5% concentration of protein supplement are added. The temperature is controlled at 33±1°C and the fermentation time is 4 hours.

[0021] Compared with the prior art, the present invention has the following significant advantages:

[0022] First: In the present invention, the raw materials for making marine flavor peptides are poured into the interior of a fixed cylinder, and the fermentation liquid for fermentation is poured into the interior of a tank body. The pressing plate is pressed downward by a mechanical arm, so that each circular cutter can rotate and reciprocate at the same time. Since a push rod is connected to the end of the circular cutter, and the push rod contacts the rubber rod, the circular cutter can reciprocate. The circular cutter can rotate and shake at the same time to fully cut and crush the raw materials. As the pressing plate is continuously pressed downward, the chopped raw materials will fall from the gaps of the circular cutter into the bottom tube below, and then fall into each first fermentation tank.

[0023] Second: In the present invention, after the pressing plate is completely pressed down into the fixed cylinder, all the raw materials are chopped, and the fixed seat will slide into the bottom groove. During this process, the fixed seat will press against the rack, so that the rack moves upward. The movement of the rack will drive the first gear to rotate, thereby rotating the rotating shaft. When the rotating shaft rotates, the two rotating blocks will rotate accordingly, so that the two originally horizontal seepage holes will rotate to a vertical state. At this time, the fermentation liquid in the tank body will enter the through hole, and then seep downward through the seepage hole. Each through hole branches and forms a fork in the pressing plate, and each fork is located above a bottom tube. Therefore, the fermentation liquid in the tank body will eventually seep evenly into each bottom tube, and then enter each first fermentation tank. At this time, the raw material and the fermentation liquid fall into each first fermentation tank respectively, so the raw material can be divided into multiple portions, and the first stage of fermentation treatment can be carried out at the same time.

[0024] Third: In the present invention, when the motor is started, the second gear can be rotated at the same time. At this time, the prism will also rotate, and drive the circular plate and the stirring rod to rotate, so as to stir the raw materials and fermentation liquid in the first fermentation tank, so as to facilitate fermentation. The fermentation conditions in each first fermentation tank can be detected separately. When the fermentation in a first fermentation tank reaches the index, the mechanical arm can be driven to make the bottom end of the mechanical arm hang on the corresponding connecting block. At this time, the mechanical arm only needs to move downward to drive the corresponding prism to move downward. With the downward pressure of the prism, the circular plate in the first fermentation tank will move downward, thereby squeezing the fermentation product in the first fermentation tank downward. Under the action of high pressure, the hinged rotating plate will open downward and complete the filtration on the filter net below. The filtered fermentation liquid will fall into the second fermentation tank below. The fermentation in the second fermentation tank only needs to change the fermentation environment as needed to complete the fermentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 3 It is a top view of the internal structure of the fixed cylinder in the present invention;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the gear ring and the fixed ring in the present invention;

[0030] Figure 5 The present invention Figure 2 An enlarged view of the structure of part A is shown;

[0031] Figure 6 It is a schematic diagram of the internal structure of the first fermentation tank in the present invention;

[0032] Figure 7 It is a schematic diagram of the internal structure of the pressure plate in the present invention;

[0033] Figure 8 It is a schematic diagram of the internal structure of the fixing seat in the present invention.

[0034] Description of reference numerals:

[0035] 1. Bracket; 2. Mechanical arm; 3. Crushing assembly; 31. First pillar; 32. Fixed cylinder; 33. Second pillar; 34. Bottom plate; 35. Rotating ring; 36. Pressing plate; 37. Fixed seat; 38. Circular cutter; 39. Bottom groove; 4. Driving assembly; 41. Support plate; 42. Gear ring; 43. Fixed block; 44. Round rod; 45. Fixed ring; 46. Limit block; 47. Rubber rod; 48. Inner liner; 49. Push rod; 5. Pressing assembly; 51. Tank body; 52. Through hole ; 53. rotating block; 54. seepage hole; 55. rotating shaft; 56. partition; 57. rack; 58. first gear; 59. spring; 6. fermentation assembly; 61. first fermentation tank; 62. second fermentation tank; 63. second gear; 64. prism; 65. connecting block; 66. bottom pipe; 67. motor; 68. third gear; 7. stirring assembly; 71. first ring; 72. second ring; 73. stirring rod; 74. piston ring; 75. round plate; 76. rotating plate. DETAILED DESCRIPTION

[0036] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides a system and method for preparing marine flavor peptides by multi-stage fermentation through improvement. The technical solution of the present invention is:

[0038] like Figure 1-Figure 8 As shown, a system and method for preparing marine flavor peptides by multi-stage fermentation, comprising a support 1, a mechanical arm 2 is arranged on the support 1, and further comprising:

[0039] The crushing assembly 3 includes a first pillar 31, a fixed cylinder 32, a second pillar 33, a bottom plate 34, a swivel 35, a pressure plate 36, a fixed seat 37, a ring cutter 38 and a bottom groove 39. The first pillar 31 and the second pillar 33 are both fixedly connected to the bracket 1. The fixed cylinder 32 and the bottom plate 34 are fixedly connected to the first pillar 31 and the second pillar 33 respectively. The swivel 35 is rotatably connected between the fixed cylinder 32 and the bottom plate 34. The pressure plate 36 is fixedly connected to the mechanical arm 2. The fixed seat 37 is fixedly connected to the bottom plate 34. A plurality of ring cutters 38 are slidably connected to the fixed seat 37. The bottom groove 39 is provided at the bottom of the pressure plate 36. The fixed cylinder 32, the swivel 35 and the bottom plate 34 together constitute a barrel-shaped container. The swivel 35 can rotate together with the gear ring 42, while the fixed cylinder 32 and the bottom plate 34 always remain stationary.

[0040] The driving assembly 4 includes a support plate 41, a gear ring 42, a fixed block 43, a round rod 44, a fixed ring 45 and a limit block 46. The plurality of support plates 41 are fixedly connected to the bottom plate 34, the gear ring 42 is rotatably connected to the plurality of support plates 41, the plurality of fixed blocks 43 are fixedly connected to the gear ring 42, and the plurality of fixed blocks 43 are fixedly connected to the rotating ring 35, the plurality of round rods 44 are respectively slidably connected to the plurality of fixed blocks 43, the fixing ring 45 is fixedly connected to the fixing cylinder 32, the plurality of limit blocks 46 are fixedly connected to the fixing ring 45, and the plurality of round rods 44 are respectively slidably connected to the plurality of limit blocks 46. Since the gear ring 42 will rotate after the motor 67 is started, and the fixing ring 45 and the limit blocks 46 therein are not moved, when the ring cutter 38 rotates, the round rod 44 thereon will also reciprocate due to the resistance to the limit blocks 46, so that the ring cutter 38 will reciprocate while rotating, thereby improving the cutting effect of the raw material;

[0041] The fermentation assembly 6 includes a first fermentation tank 61, a second fermentation tank 62, a bottom pipe 66, a motor 67 and a third gear 68. The first fermentation tanks 61 and the second fermentation tanks 62 are fixedly connected to the second support 33. The bottom pipes 66 are respectively fixedly connected between the first fermentation tanks 61 and the bottom plate 34. The motor 67 is fixedly connected to the bracket 1. The third gear 68 is fixedly connected to the output shaft of the motor 67. The third gear 68 is meshed with the gear ring 42. The first fermentation tank 61 is used for the first stage of fermentation, and the second fermentation tank 62 is used for the second stage of fermentation. The first stage of fermentation is the fermentation of raw materials, and the third stage of fermentation is the fermentation of raw materials. The second stage only needs to take the fermentation liquid of the first stage. Therefore, the first stage is the main process of fermentation, and the fermentation of the second stage only needs to adjust the fermentation environment. The specific components of the fermentation liquid of the first stage are 5.0% concentration of bacterial liquid, 3.0±0.5% concentration of glucose, and 0.35% concentration of sodium chloride, which are pre-loaded in the tank body 51. The fermentation temperature of the first stage needs to be controlled at 35±1°C, and the fermentation time is about 4 hours. During the second stage of fermentation, 3.5% concentration of bacterial liquid and 2.0±0.5% concentration of glucose need to be added to the second fermentation tank 62, the fermentation temperature is about 30±1°C, and the fermentation time is controlled at about 5 hours.

[0042] Furthermore, the fermentation component 6 also includes a second gear 63, a prism 64 and a connecting block 65. The multiple second gears 63 are respectively rotatably connected to the multiple support plates 41, the multiple prisms 64 are respectively slidably connected to the multiple second gears 63, and the multiple connecting blocks 65 are respectively fixedly connected to the tops of the multiple prisms 64. The multiple connecting blocks 65 cooperate with the robotic arm 2. The robotic arm 2 can move up and down to control the up and down movement of the pressure plate 36, and it can rotate to connect with each connecting block 65. When the end of the robotic arm 2 is docked with the connecting block 65, it can drive the corresponding prism 64 to move up and down while driving the pressure plate 36 to move up and down.

[0043] Furthermore, a pressing assembly 5 is provided on the pressing plate 36, and the pressing assembly 5 includes a tank body 51, a through hole 52, a rotating block 53 and a seepage hole 54. The two tank bodies 51 are fixedly connected to the pressing plate 36, the two through holes 52 are opened on the pressing plate 36, the two rotating blocks 53 are respectively rotatably connected to the inside of the two through holes 52, and the two seepage holes 54 are respectively opened on the two rotating blocks 53. The fermentation liquid is pre-filled in the tank body 51, so that the entire fermentation process can be automatically completed, that is, the raw materials and the fermentation liquid can automatically enter each first fermentation tank 61. By automatically controlling the rotation cycle and time of the motor 67 and the activity of the robotic arm 2, the effect of evenly pouring the fermentation liquid into each first fermentation tank 61 can be achieved.

[0044] Furthermore, the pressing assembly 5 also includes a rotating shaft 55, a partition 56, a rack 57, a first gear 58 and a spring 59. The rotating shaft 55 is fixedly connected between the two rotating blocks 53, the partition 56 is fixedly connected to the inside of the bottom groove 39, the rack 57 is slidably connected to the partition 56, the first gear 58 is fixedly connected to the rotating shaft 55, the rack 57 is meshed with the first gear 58, and the spring 59 is fixedly connected between the rack 57 and the inner wall of the bottom groove 39. When the pressure plate 36 moves downward, the rack 57 will eventually contact the fixed seat 37, thereby causing the rack 57 to move upward relatively, thereby rotating the rotating block 53 and the seepage hole 54 thereon.

[0045] Furthermore, a stirring assembly 7 is provided inside the multiple first fermentation tanks 61, and the stirring assembly 7 includes a first ring 71, a second ring 72, a stirring rod 73 and a rotating plate 76. The multiple first rings 71 and the multiple second rings 72 are respectively rotatably connected to the inside of the multiple first fermentation tanks 61, the stirring rod 73 is fixedly connected between the multiple first rings 71 and the multiple second rings 72, and the multiple rotating plates 76 are hinged to the bottom of the multiple first fermentation tanks 61 through elastic hinges.

[0046] Furthermore, the stirring assembly 7 also includes a piston ring 74 and a circular plate 75, the multiple piston rings 74 are respectively slidably connected to the inside of the multiple first fermentation tanks 61, the multiple circular plates 75 are respectively fixedly connected to the multiple piston rings 74, the stirring rod 73 is respectively slidably connected to the multiple circular plates 75, and the multiple circular plates 75 are respectively fixedly connected to the multiple prisms 64.

[0047] Furthermore, the driving assembly 4 also includes a rubber rod 47, an inner liner 48 and a push rod 49. The inner liner 48 is fixedly connected to the inside of the fixed seat 37. Multiple push rods 49 are respectively fixedly connected to multiple circular cutting knives 38. Multiple push rods 49 are slidingly connected to the inner liner 48. The rubber rod 47 is fixedly connected to the inside of the inner liner 48. The rubber rod 47 has good elasticity. Therefore, each push rod 49 can generate elasticity when contacting the rubber rod 47 to realize the reciprocating movement of the circular cutting knife 38.

[0048] The specific working methods are:

[0049] The raw materials for making marine flavor peptides are poured into the interior of the fixed cylinder 32, and the fermentation liquid for fermentation is poured into the interior of the tank body 51. The pressing plate 36 is controlled by the mechanical arm 2 to be pressed down so that the raw materials in the fixed cylinder 32 are squeezed downward, and the motor 67 is started to rotate the third gear 68, thereby driving the gear ring 42 to rotate. When the gear ring 42 rotates, the fixed blocks 43 thereon and the entire rotating ring 35 will rotate, and at the same time, the round rods 44 will move between the limit blocks 46, thereby forcing each ring cutter 38 to reciprocate while rotating. Since the push rod 49 is connected to the end of the ring cutter 38, and the push rod 49 will resist the rubber rod 47, the ring cutter 38 will reciprocate. The ring cutter 38 can fully cut and crush the raw materials while rotating and shaking. As the pressing plate 36 is continuously pressed down, the chopped raw materials will also fall from the gap of the ring cutter 38 into the bottom tube 66 below, and then fall into each first fermentation tank 61.

[0050] After the pressing plate 36 is completely pressed down into the fixed cylinder 32, the raw materials are all chopped, and the fixed seat 37 will slide into the bottom groove 39. During this process, the fixed seat 37 will press against the rack 57, so that the rack 57 moves upward. The movement of the rack 57 will drive the first gear 58 to rotate, thereby rotating the shaft 55. When the shaft 55 rotates, the two rotating blocks 53 rotate accordingly, so that the two originally horizontal seepage holes 54 rotate to a vertical state. At this time, the fermentation liquid in the tank body 51 will enter the through hole 52, and then seep downward through the seepage hole 54. Each through hole 52 is bifurcated in the pressing plate 36 to form a fork, and each fork is located above a bottom tube 66. Therefore, the fermentation liquid in the tank body 51 will eventually seep evenly into each bottom tube 66, and then enter each first fermentation tank 61. At this time, the raw material and the fermentation liquid fall into each first fermentation tank 61 respectively, so the raw material can be divided into multiple portions and the first stage of fermentation treatment can be carried out at the same time.

[0051] The motor 67 continues to drive the gear ring 42 to rotate, thereby rotating the second gear 63. At this time, the prism 64 will also rotate, and drive the circular plate 75 and the stirring rod 73 to rotate, so as to stir the raw materials and fermentation liquid in the first fermentation tank 61 for fermentation. During the fermentation process, the gas to be discharged will be directly discharged through the bottom pipe 66. The fermentation conditions in each first fermentation tank 61 can be detected separately. When the fermentation in a first fermentation tank 61 reaches the index, the robot arm 2 can be driven to hang the bottom end of the robot arm 2 on the corresponding connecting block 65. At this time, the robot arm 2 only needs to move downward to drive the corresponding prism 64 to move downward. As the prism 64 is pressed downward, the circular plate 75 in the first fermentation tank 61 will move downward, thereby stirring the first fermentation tank 61. The fermentation product in the tank 61 is squeezed downward, and under the action of high pressure, the hinged rotating plate 76 will open downward, and complete the filtration on the filter screen below, and the filtered fermentation liquid will fall into the second fermentation tank 62 below. The second fermentation tank 62 only needs to change the fermentation environment as needed to complete the fermentation. After the fermentation liquid is completed in the second fermentation tank 62, a discharge pipe with a valve is provided at the bottom of the second fermentation tank 62. Only by opening the valve can all the fermentation liquid in the second fermentation tank 62 be discharged for subsequent fermentation and treatment. For example, in the subsequent fermentation and treatment process, a 3.0% concentration of bacterial liquid and a 2.0±0.5% concentration of protein supplement liquid can be added, the temperature can be controlled at 33±1°C, and the fermentation time can be controlled at 4 hours.

[0052] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A system for preparing marine flavor peptides by multi-stage fermentation, comprising a support (1), wherein a mechanical arm (2) is arranged on the support (1), characterized in that: Also includes: A crushing assembly (3), the crushing assembly (3) comprising a first pillar (31), a fixed cylinder (32), a second pillar (33), a bottom plate (34), a rotating ring (35), a pressing plate (36), a fixed seat (37), a ring cutter (38) and a bottom groove (39), the first pillar (31) and the second pillar (33) are both fixedly connected to the bracket (1), the fixed cylinder (32) and the bottom plate (34) are respectively fixedly connected to the first pillar (31) and the second pillar (33), the rotating ring (35) is rotatably connected between the fixed cylinder (32) and the bottom plate (34), the pressing plate (36) is fixedly connected to the mechanical arm (2), the fixed seat (37) is fixedly connected to the bottom plate (34), a plurality of the ring cutters (38) are slidably connected to the fixed seat (37), and the bottom groove (39) is provided at the bottom of the pressing plate (36); A driving assembly (4), the driving assembly (4) comprising a support plate (41), a gear ring (42), a fixed block (43), a round rod (44), a fixed ring (45) and a limit block (46), wherein a plurality of the support plates (41) are fixedly connected to the bottom plate (34), the gear ring (42) is rotatably connected to a plurality of the support plates (41), a plurality of the fixed blocks (43) are fixedly connected to the gear ring (42), and a plurality of the fixed blocks (43) are fixedly connected to the rotating ring (35), a plurality of the round rods (44) are respectively slidably connected to the plurality of the fixed blocks (43), the fixed ring (45) is fixedly connected to the fixed cylinder (32), a plurality of the limit blocks (46) are fixedly connected to the fixed ring (45), and a plurality of the round rods (44) are respectively slidably connected to the plurality of the limit blocks (46); A fermentation assembly (6), the fermentation assembly (6) comprising a first fermentation tank (61), a second fermentation tank (62), a bottom tube (66), a motor (67) and a third gear (68), a plurality of the first fermentation tanks (61) and a plurality of the second fermentation tanks (62) are fixedly connected to a second support (33), a plurality of the bottom tubes (66) are respectively fixedly connected between the plurality of first fermentation tanks (61) and a bottom plate (34), the motor (67) is fixedly connected to a bracket (1), the third gear (68) is fixedly connected to an output shaft of the motor (67), the third gear (68) is meshed with a gear ring (42), a pressing assembly (5) is provided on the pressing plate (36), the pressing assembly (5) comprising a tank body (51), a through hole (52), a rotating block (53) and a seepage hole (54), the two tank bodies (51) are fixedly connected On the pressing plate (36), the two through holes (52) are opened on the pressing plate (36), the two rotating blocks (53) are respectively rotatably connected to the inside of the two through holes (52), and the two seepage holes (54) are respectively opened on the two rotating blocks (53). The pressing assembly (5) further comprises a rotating shaft (55), a partition (56), a rack (57), a first gear (58) and a spring (59), wherein the rotating shaft (55) is fixedly connected between the two rotating blocks (53), the partition (56) is fixedly connected to the inside of the bottom groove (39), the rack (57) is slidably connected to the partition (56), the first gear (58) is fixedly connected to the rotating shaft (55), the rack (57) is meshed with the first gear (58), and the spring (59) is fixedly connected between the rack (57) and the inner wall of the bottom groove (39).

2. The system for preparing marine flavor peptides by multi-stage fermentation according to claim 1, characterized in that: The fermentation assembly (6) further comprises a second gear (63), a prism (64) and a connecting block (65); the plurality of second gears (63) are rotatably connected to the plurality of support plates (41), the plurality of prisms (64) are slidably connected to the plurality of second gears (63), the plurality of connecting blocks (65) are fixedly connected to the tops of the plurality of prisms (64), and the plurality of connecting blocks (65) cooperate with the mechanical arm (2).

3. The system for preparing marine flavor peptides by multi-stage fermentation according to claim 1, characterized in that: A stirring assembly (7) is arranged inside the plurality of first fermentation tanks (61), and the stirring assembly (7) comprises a first circular ring (71), a second circular ring (72), a stirring rod (73) and a rotating plate (76). The plurality of first circular rings (71) and the plurality of second circular rings (72) are rotatably connected to the inside of the plurality of first fermentation tanks (61), respectively, the stirring rod (73) is fixedly connected between the plurality of first circular rings (71) and the plurality of second circular rings (72), and the plurality of rotating plates (76) are hinged to the bottom of the plurality of first fermentation tanks (61) via elastic hinges.

4. The system for preparing marine flavor peptides by multi-stage fermentation according to claim 3, characterized in that: The stirring assembly (7) further comprises a piston ring (74) and a circular plate (75); the plurality of piston rings (74) are respectively slidably connected to the interior of the plurality of first fermentation tanks (61); the plurality of circular plates (75) are respectively fixedly connected to the plurality of piston rings (74); the stirring rod (73) is respectively slidably connected to the plurality of circular plates (75); and the plurality of circular plates (75) are respectively fixedly connected to the plurality of prisms (64).

5. The system for preparing marine flavor peptides by multi-stage fermentation according to claim 4, characterized in that: The driving assembly (4) further comprises a rubber rod (47), an inner liner (48) and a push rod (49); the inner liner (48) is fixedly connected to the interior of the fixing seat (37); a plurality of push rods (49) are respectively fixedly connected to a plurality of circumcision knives (38); the plurality of push rods (49) are slidably connected to the inner liner (48); and the rubber rod (47) is fixedly connected to the interior of the inner liner (48).

6. A method for using a system for preparing marine flavor peptides by multi-stage fermentation according to any one of claims 1 to 5, characterized in that: The specific steps include: Step 1: Pour the raw materials for making marine flavor peptides into the interior of the fixed cylinder (32), pour the fermentation liquid for fermentation into the interior of the tank (51), and control the pressing plate (36) to press downward by the mechanical arm (2) so that the raw materials in the fixed cylinder (32) are squeezed downward; Step 2: starting the motor (67) to drive the gear ring (42) to rotate, causing the ring cutter (38) to rotate and shake, thereby cutting and crushing the raw materials, and at the same time the pressing plate (36) is continuously pressed downward, so that the chopped raw materials can leak into the interior of each first fermentation tank (61) through the bottom pipe (66); Step 3: After the pressing plate (36) is completely pressed down into the fixed cylinder (32), the raw materials are all chopped up, and at the same time, the fermentation liquid in the two tank bodies (51) will leak downward at the same time, and then be evenly leaked into each first fermentation tank (61) together with the raw materials. The fermentation liquid is a bacterial liquid with a concentration of 5.0%, which also contains a concentration of 3.0±0.5% glucose and a concentration of 0.35% sodium chloride; Step 4: The motor (67) continues to drive the gear ring (42) to rotate, thereby causing the second gear (63) to rotate. At this time, the prism (64) also rotates, and drives the circular plate (75) and the stirring rod (73) to rotate, so as to stir the raw materials and fermentation liquid in the first fermentation tank (61) to facilitate fermentation. The temperature of the first fermentation tank (61) should be controlled at 35±1°C; Step 5: The first stage of fermentation is carried out in the first fermentation tank (61). The actual fermentation time of the first stage is 4 hours. After the fermentation of the first stage is completed, the fermentation liquid is poured into the second fermentation tank (62) for the fermentation of the second stage. Before the second stage is carried out, it is necessary to add 3.5% concentration of bacterial liquid and 2.0±0.5 concentration of glucose to the second fermentation tank (62). During the fermentation process, the temperature needs to be controlled at 30±1°C. The specific fermentation time is 5 hours. After the second stage is completed, all the fermentation products are collected and concentrated to carry out the third stage of fermentation. In the third stage, 3.0% concentration of bacterial liquid and 2.0±0.5% concentration of protein supplement are added. The temperature is controlled at 33±1°C and the fermentation time is 4 hours.

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