Preprocessing system for wolfberry pulp

Abstract

The invention discloses a Chinese wolfberry pulp pre-processing system, which comprises the process steps of acceptance check, manual sorting, soaking disinfection, cleaning, sorting, cleaning, crushing, double pulping, colloid mill refining, vacuum degassing, homogenizing, sterilization, sterile filling and the like, and the finally produced Chinese wolfberry pulp is good in color and taste, high in nutritional value and high in quality. The flavor of the original wolfberry primary pulp is better maintained, and the quality of the primary pulp is improved; and the process is simple, easy to operate and suitable for mass production.

Description

Technical Field

[0001] The invention relates to the technical field of wolfberry processing, and more particularly to a wolfberry slurry pre-processing system. Background Art

[0002] Lycium barbarum is rich in carotenoids, proteins, flavonoids, polysaccharides, and various active substances such as vitamins, amino acids and mineral elements. It is a precious Chinese medicinal material that can be used as both medicine and food, and has many health benefits such as antioxidant, lipid-lowering, and anti-cancer.

[0003] Fresh wolfberry has a short shelf life. Wolfberry puree is made from fresh wolfberry as raw material. It preserves 100% of the nutrients in fresh wolfberry, and the nutrients are more easily absorbed by the human body. It has a long shelf life and is also convenient for subsequent processing.

[0004] In the traditional pre-processing of wolfberry slurry, the quality of fresh wolfberry fruit raw materials is uneven, and there are even cases where pathogenic bacteria, pesticide residues and heavy metals exceed the standard. The raw material handling procedures are poor, and the overall processing technology is complicated and costly, resulting in poor quality of subsequent wolfberry slurry. Summary of the invention

[0005] In view of this, the present invention provides a wolfberry slurry pre-processing system, aiming to solve the above technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A wolfberry slurry pre-processing system comprises the following steps: S1, inspecting and manually selecting the picked wolfberry fruits to obtain selected wolfberry fruits; S2, soaking and disinfecting the selected fresh wolfberry fruits; S3, performing primary bubbling cleaning on the fresh wolfberry fruit that has been soaked and disinfected; S4, picking the washed wolfberry fruits; S5, the selected wolfberry fruits are subjected to secondary bubbling cleaning; S6, crushing and pulping the washed fresh wolfberry fruits to obtain wolfberry pulp; S7, the wolfberry puree is transported to the colloid mill through a screw pump for refinement, and then transported to the puree collection tank after the treatment; S8, vacuum degassing, homogenization, and sterilization; S9: Aseptic filling and storage to complete the pre-processing of wolfberry slurry.

[0007] Preferably, the acceptance criteria for fresh wolfberry fruit in step S1 are: lead (Pb) / (mg / Kg)≤0.05mg / L, mold and yeast ≤20CFU / mL, and no Salmonella should be detected.

[0008] Preferably, in step S2, the disinfectant used for disinfecting fresh wolfberry fruit is chlorine dioxide disinfectant.

[0009] Preferably, in step S3, the first-level bubbling cleaning method is to use a bubbling cleaning machine and a fan to blow air to make the fresh wolfberry fruit continuously roll in the water for cleaning.

[0010] Preferably, in step S4, the fresh wolfberry fruits are sorted by a belt fruit sorting machine.

[0011] Preferably, in step S5, the secondary bubbling cleaning method is to turn on the circulating water pump of the bubbling cleaning machine, and when the fresh wolfberry fruit is about to enter the bubbling cleaning machine, turn on the bubbling fan, start bubbling cleaning, adjust the operating speed, and the fresh wolfberry fruit that has been bubbling cleaned passes through the elevator, and turn on the purified water spray cleaning during the lifting stage to clean the fresh wolfberry fruit.

[0012] Preferably, in step S6, the fresh wolfberry fruit is conveyed to a hammer crusher for crushing, flows out from the discharge port after crushing, and is conveyed to a buffer tank. The crusher speed is 1470-1500rpm, the crusher pump frequency is 40-50HZ, and the discharge material pump frequency is 35-40HZ; the pre-crushed fresh wolfberry fruit is pulped by a double-channel beater; the double-channel beater has a first-channel frequency of 45-50HZ, a second-channel frequency of 48-52HZ, and a discharge material pump frequency of 50-60HZ.

[0013] Preferably, in step S7, the rotation speed of the colloid mill teeth is 2950-3000 rpm, and the colloid mill discharge frequency is 50-60 Hz.

[0014] Preferably, in step S8, the vacuum degree of vacuum degassing is 0.03-0.06 MPa; the homogenization pressure is 30-40 MPa; the sterilization temperature of the sterilizer is 110°C±3°C, and the sterilization time is 30-40s.

[0015] Preferably, in step S9, the temperature of the filling chamber of the aseptic filling filling machine is 95°C±2°C.

[0016] It can be seen from the above technical solution that, compared with the prior art, the present invention discloses a wolfberry slurry pre-processing system, which has the following beneficial effects: The invention provides a pre-processing system for wolfberry slurry, comprising process steps such as acceptance, manual sorting, soaking and disinfection, cleaning, sorting, cleaning, crushing, double-channel beating, colloid grinding, vacuum degassing, homogenization, sterilization and aseptic filling. The wolfberry slurry finally produced has good color and taste, high nutritional value, better maintains the flavor of the original wolfberry pulp, and improves the quality of the pulp; and the process is simple and easy to operate, and is suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 The accompanying drawing is a schematic diagram of the overall process provided by the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0020] See also Figure 1 The embodiment of the present invention discloses a wolfberry slurry pre-processing system, comprising the following steps: S1, inspecting and manually selecting the picked wolfberry fruits to obtain selected wolfberry fruits; S2, soaking and disinfecting the selected fresh wolfberry fruits; S3, performing primary bubbling cleaning on the fresh wolfberry fruit that has been soaked and disinfected; S4, picking the washed wolfberry fruits; S5, the selected wolfberry fruits are subjected to secondary bubbling cleaning; S6, crushing and pulping the washed fresh wolfberry fruits to obtain wolfberry pulp; S7, the wolfberry puree is transported to the colloid mill through a screw pump for refinement, and then transported to the puree collection tank after the treatment; S8, vacuum degassing, homogenization, and sterilization; S9: Aseptic filling and storage to complete the pre-processing of wolfberry slurry.

[0021] In this embodiment, in step S1, each batch of wolfberry fresh fruit raw materials and packaging materials should be strictly inspected and accepted in accordance with internal quality standards, and can only be put into storage after passing the inspection.

[0022] The acceptance of raw materials and packaging materials requires an audit of the material suppliers, and acceptance will only be carried out after they are confirmed to be qualified suppliers with complete qualifications.

[0023] The acceptance of fresh wolfberry fruit should comply with the requirements of the "Quality Standards for Fresh Wolfberry Juice". Inspectors will conduct factory inspections on the sensory indicators and physical and chemical indicators of the raw materials to ensure that the raw materials meet the requirements.

[0024] The acceptance criteria for fresh wolfberry fruit are: lead (Pb) / (mg / Kg) ≤ 0.05mg / L, mold and yeast ≤ 20CFU / mL, and salmonella must not be detected. Table 1 shows the acceptance criteria for fresh wolfberry fruit. Table 1

[0025] In step S2, the disinfectant used for disinfecting fresh wolfberry fruit is chlorine dioxide disinfectant.

[0026] Among them, the configuration of the disinfectant is, powder: chlorine dioxide content in chlorine dioxide disinfectant powder is 10%, chlorine dioxide disinfectant powder: water = 1:267 (0.0037kg:1L; preparation concentration 100mg / L), and it is prepared and stirred in a special tank for chlorine dioxide preparation. After the chlorine dioxide is prepared, it is added to the immersion tank through a pipe with a pump; it is circulated with a circulating pump to prepare a uniform concentration of immersion disinfectant.

[0027] Table 2 shows the requirements for fresh fruit soaking and disinfection Table 2

[0028] In step S3, the first-level bubbling cleaning method is to use a bubbling cleaning machine, and the fan blows air to make the fresh wolfberry fruit roll continuously in the water for cleaning. In the bubbling cleaning machine, the fan sends air into the pipeline of the cleaning tank, and the air is delivered through the holes of the pipeline, and the water surface rolls continuously, so that the fresh wolfberry rolls continuously in the water to wash away the mud, dust and fruit leaves on the surface, so as to achieve the purpose of cleaning; the bubbling cleaning machine is an existing conventional structure, which will not be described in detail here.

[0029] In step S4, fresh wolfberry fruits are sorted by a belt-type fruit sorting machine.

[0030] The belt-type fruit-picking conveyor adopts stainless steel chain plates for conveying, and the conveying speed is adjusted according to the production process requirements (the speed is adjustable); a SUS304 stainless steel water collection tank is configured under the conveyor belt to prevent water from spilling; when the fresh wolfberry fruit passes through the belt-type fruit-picking conveyor, the fruit branches, fruit leaves, flower stalks, moldy fruits, and fruit stalks in the fresh fruit are picked out.

[0031] In step S5, the secondary bubbling cleaning method is to turn on the circulating water pump of the bubbling cleaning machine, and when the fresh wolfberry fruit is about to enter the bubbling cleaning machine, turn on the bubbling fan, start bubbling cleaning, adjust the operating speed, and the fresh wolfberry fruit that has been bubbling cleaned passes through the elevator. During the lifting stage, turn on the purified water spray cleaning to perform the final cleaning on the fresh wolfberry fruit.

[0032] In step S6, the fresh wolfberry fruit is transported to the hammer crusher for crushing, flows out from the discharge port after crushing, and is transported to the buffer tank. The crusher speed is 1470-1500rpm, the crusher pump frequency is 40-50HZ, and the discharge material pump frequency is 35-40HZ; all the cleaned fresh wolfberry fruit is transported to the hammer crusher feed hopper, and after being crushed by the crushing parts of the crusher, it flows out from the discharge port and is transported to the buffer tank. The crusher speed is 1470rpm, the crusher pump frequency is 40HZ, and the discharge material pump frequency is 35HZ.

[0033] The pre-crushed wolfberry fruit is pulped by a double-channel pulping machine; the double-channel pulping machine has a first channel frequency of 45-50HZ, a second channel frequency of 48-52HZ, and a discharge material pump frequency of 50-60HZ.

[0034] The pre-crushed wolfberry fruits are conveyed to a double-channel pulper; the rotor with radial blades pushes the liquid material to the conical screen through centrifugal action, and adjusts the speed of channel I and channel II, the aperture of the first screen is 1.2 mm, and the aperture of the second screen is 0.8 mm; this helps separate the juice from the seeds, skin and impurities, and the raw pulp enters a low-level buffer tank, while the seeds and skin residues are collected separately; the frequency of the double-channel pulper is 45HZ for the first channel, 48HZ for the second channel, and the frequency of the discharge material pump is 50HZ.

[0035] In step S7, the rotation speed of the colloid mill teeth is 2950-3000 rpm, and the colloid mill discharge frequency is 50-60 Hz.

[0036] The wolfberry fresh fruit juice in the low-level buffer tank of the double-channel beater is transported to the colloid mill through a screw pump, the colloid mill condensation water is turned on, and the colloid mill gear speed is adjusted to about 2950rpm for refinement treatment. After treatment, it is transported to the raw juice collection tank. The colloid mill discharge frequency is 50HZ.

[0037] Standardization of fresh wolfberry juice involves taking samples of the fresh wolfberry juice processed by colloid mill, measuring the original juice color, taste, and soluble solids on site, and then standardizing it according to the product formula requirements and keeping records (Note: no pure water is added).

[0038] In step S8, the vacuum degree of vacuum degassing is 0.03-0.06 MPa; the vacuum degree of vacuum degassing is set to 0.03-0.06 MPa, and the vacuum pump is turned on to degas the material.

[0039] Homogenizing pressure 30-40MPa: Set the homogenizing pressure at 30-40MPa to ensure the homogenizing effect and the fineness of the original pulp.

[0040] The sterilization temperature of the sterilizer is 110℃±3℃, and the sterilization time is 30-40s; the wolfberry slurry is transported to the sterilizer for material sterilization, and the sterilization temperature is set to 110℃±3℃, the sterilization time is 30s, the feed pump frequency is 50HZ, and the outlet temperature is controlled at 45℃.

[0041] During the top-water stage, take samples from the sampling valve of the material balance tank next to the sterilizer or the sewage outlet, and use a saccharimeter to measure the soluble solids. If the measured value is greater than 15%, it is qualified and ready for filling.

[0042] During the water-top stage, the first to fourth barrels are put into storage as normal semi-finished products, and the fifth barrel is placed in a designated temporary storage area to be used in the next juicing rework. The soluble solids are measured before being pumped into the standardized tanks.

[0043] Materials that top water or water tops material must be marked and labeled on the packaging barrel.

[0044] In step S9, the filling chamber temperature of the aseptic filling filling machine is 95°C ± 2°C.

[0045] During the filling process, the steam supply should be maintained normally, and the temperature of the filling chamber of the filling machine should be controlled at 95℃±2℃ to prevent the temperature from continuously dropping and affecting the product quality. A sterile filling head should be used during the filling process.

[0046] Referring to the agricultural promotion standard NY / T1051-2014 "Green Food Wolfberry and Wolfberry Products", the quality of the prepared wolfberry slurry was evaluated from three aspects: color, taste, smell and state. Table 3 gives the sensory evaluation standards; Table 3 project Requirements / Indicators Measured indicators Color The product should have bright red or reddish color The product should have bright red or reddish color Taste, smell It has the taste and smell of wolfberry puree, without any peculiar smell It has the taste and smell of wolfberry puree, without any peculiar smell state The serous fluid is uniform and no foreign matter can be seen with normal vision. The serous fluid is uniform and no foreign matter can be seen with normal vision. By adopting the pre-processing system of wolfberry slurry of the present invention, the wolfberry slurry finally produced has good color, taste and state, high nutritional value, better maintains the flavor of the original wolfberry pulp, and improves the quality of the pulp; and the process is simple and easy to operate, which is suitable for mass production.

[0047] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0048] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wolfberry slurry pre-processing system, characterized in that: The following steps are involved: S1, inspecting and manually selecting the picked wolfberry fruits to obtain selected wolfberry fruits; S2, soaking and disinfecting the selected fresh wolfberry fruits; S3, performing primary bubbling cleaning on the fresh wolfberry fruit that has been soaked and disinfected; S4, picking the washed wolfberry fruits; S5, the selected wolfberry fruits are subjected to secondary bubbling cleaning; S6, crushing and pulping the washed fresh wolfberry fruits to obtain wolfberry pulp; S7, the wolfberry puree is transported to the colloid mill through a screw pump for refinement, and then transported to the puree collection tank after the treatment; S8, vacuum degassing, homogenization, and sterilization; S9: Aseptic filling and storage to complete the pre-processing of wolfberry slurry.

2. A wolfberry slurry pre-processing system according to claim 1, characterized in that: The acceptance criteria for fresh wolfberry fruit in step S1 are: lead (Pb) / (mg / Kg) ≤ 0.05 mg / L, mold and yeast ≤ 20 CFU / mL, and no Salmonella should be detected.

3. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S2, the disinfectant used for disinfecting fresh wolfberry fruit is chlorine dioxide disinfectant.

4. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S3, the first-level bubbling cleaning method is to use a bubbling cleaning machine and a fan to blow air to make the fresh wolfberry fruit roll continuously in the water for cleaning.

5. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S4, fresh wolfberry fruits are sorted by a belt-type fruit sorting machine.

6. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S5, the secondary bubbling cleaning method is to turn on the circulating water pump of the bubbling cleaning machine, and when the fresh wolfberry fruit is about to enter the bubbling cleaning machine, turn on the bubbling fan, start bubbling cleaning, adjust the operating speed, and the fresh wolfberry fruit that has been bubbling cleaned passes through the elevator. During the lifting stage, turn on the purified water spray cleaning to clean the fresh wolfberry fruit.

7. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S6, the fresh wolfberry fruit is conveyed to a hammer crusher for crushing, flows out from the discharge port after crushing, and is conveyed to a buffer tank. The crusher speed is 1470-1500rpm, the crusher pump frequency is 40-50HZ, and the discharge material pump frequency is 35-40HZ; the pre-crushed fresh wolfberry fruit is pulped by a double-channel beater; the double-channel beater has a first-channel frequency of 45-50HZ, a second-channel frequency of 48-52HZ, and a discharge material pump frequency of 50-60HZ.

8. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S7, the rotation speed of the colloid mill teeth is 2950-3000 rpm, and the colloid mill discharge frequency is 50-60 Hz.

9. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S8, the vacuum degree of vacuum degassing is 0.03-0.06 MPa; the homogenization pressure is 30-40 MPa; the sterilization temperature of the sterilizer is 110°C±3°C, and the sterilization time is 30-40s.

10. The wolfberry slurry pre-processing system according to claim 1, characterized in that: In step S9, the filling chamber temperature of the aseptic filling filling machine is 95°C ± 2°C.

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