Continuous enzymolysis reaction device for rice protein

Abstract

The utility model relates to the technical field of rice protein enzymolysis, in particular to a rice protein continuous enzymolysis reaction device, which comprises a protein feed liquid conveying pipe, an enzymolysis liquid conveying pipe, a pipeline mixer, a continuous reaction tank and an enzyme deactivation heat exchanger, the pipeline mixer, the continuous reaction tank and the enzyme deactivation heat exchanger are sequentially connected through an enzymolysis feed liquid conveying pipe; a protein feed liquid flow control device is arranged on the protein feed liquid conveying pipe, and an enzymatic hydrolysate flow control device is arranged on the enzymatic hydrolysate conveying pipe. According to the utility model, the first-in first-out of protein feed liquid can be ensured, and the protein feed liquid completing the reaction is immediately heated for enzyme deactivation to terminate the reaction, so that the enzymolysis reaction time can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rice protein continuous enzymolysis reaction device belongs to rice protein enzymolysis device technical field. BACKGROUND

[0002] Rice protein is a kind of high-quality plant protein, with low allergy, high digestibility, reasonable amino acid composition and other advantages.Rice protein is mainly composed of glutelin, with strong hydrophobicity, low solubility and rough taste, which seriously affects the application range of rice protein.

[0003] Enzymatic treatment is an effective means to improve protein solubility, and the production process is environmentally friendly.However, although the treatment of rice protein by protease can effectively improve the solubility of rice protein and improve the delicacy of protein, bitter and umami and other undesirable flavors are easily brought in the enzymolysis process.Improving the undesirable flavors generated by enzymolysis requires selecting appropriate protease types;At the same time, precise control of enzymolysis process, such as precise control of enzymolysis time, is also very helpful to reduce the generation of undesirable flavors.The enzymolysis treatment of rice protein in the prior art is usually carried out in a reaction tank, and the starting and ending time of enzymolysis reaction is relatively long due to the large volume of the reaction tank, so it is difficult to realize precise control of enzymolysis reaction time. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model provides a rice protein continuous enzymolysis reaction device which can greatly improve the precision of enzymolysis reaction time control.

[0005] The utility model solves the above technical problems by adopting the following technical scheme:

[0006] A rice protein continuous enzymolysis reaction device comprises:

[0007] Protein feed liquid conveying pipe, enzymolysis liquid conveying pipe, pipeline mixer, continuous reaction tank and enzyme inactivation heat exchanger, the protein feed liquid conveying pipe and the enzymolysis liquid conveying pipe are connected to the front end of the pipeline mixer, and then connected to the pipeline mixer, the continuous reaction tank and the enzyme inactivation heat exchanger through the enzymolysis feed liquid conveying pipe;The protein feed liquid conveying pipe is provided with a protein feed liquid flow control device, and the enzymolysis liquid conveying pipe is provided with an enzymolysis liquid flow control device.

[0008] Further, the protein feed liquid flow control device is a first flowmeter arranged on the protein feed liquid conveying pipe.

[0009] Further, the enzymolysis liquid flow control device comprises a regulating valve, a check valve and a second flowmeter arranged in sequence on the enzymolysis liquid conveying pipe.

[0010] Further, a flow controller is further included, which is connected with the first flow meter, the second flow meter and the regulating valve respectively.

[0011] Further, the enzyme solution delivery pipe is connected with the protein material solution delivery pipe through the enzyme solution adding pipe, and the enzyme solution delivery pipe is connected with the enzyme solution adding pipe and the protein material solution delivery pipe at a certain angle, so that the enzyme solution is mixed with the protein material solution at an angle less than 90 degrees.

[0012] Further, the continuous reaction tank comprises a plurality of reaction tank bodies connected through the enzyme solution material delivery pipes, and the reaction tank bodies are longitudinally arranged and the enzyme solution material delivery pipes are arranged in a lower-in and upper-out mode, i.e., the feed inlet of the reaction tank body is arranged at the lower part and the discharge outlet is arranged at the upper part of the tank body.

[0013] Further, the reaction tank body is internally provided with a stirring impeller, and the reaction tank body is further internally provided with a heating control device, wherein the heating control device comprises a temperature controller, a variable frequency heating device arranged at the bottom of the reaction tank body and a temperature sensor arranged at the middle part of the reaction tank body which are connected with the temperature controller respectively.

[0014] Further, the enzyme solution material delivery pipe is a heat preservation pipe, so as to minimize the temperature fluctuation of the material solution after the protein material solution and the enzyme solution are mixed.

[0015] Further, the protein material solution input into the protein material solution delivery pipe is the rice protein material solution after being adjusted.

[0016] Compared with the prior art, the application has the following advantages:

[0017] The application inputs the protein material solution and the protease solution into the pipeline mixer through the protein material solution delivery pipe and the enzyme solution delivery pipe respectively, mixes the protein material solution and the protease solution, and then inputs the mixed solution into the plurality of reaction tanks for enzyme hydrolysis reaction, and finally inputs the solution into the enzyme inactivation heat exchanger for temperature rising and enzyme inactivation, so as to terminate the enzyme hydrolysis reaction. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic view of the application.

[0019] In the figure, 1 is a first flow meter, 2 is a regulating valve, 3 is a check valve, 4 is a second flow meter, 5 is an enzyme solution adding pipe, 6 is a pipeline mixer, 7 is a continuous reaction tank, 8 is an enzyme inactivation heat exchanger, 9 is an enzyme solution delivery pipe, 10 is a protein material solution delivery pipe, and 11 is an enzyme solution material delivery pipe. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be described clearly and completely in connection with the drawings and specific embodiments.

[0021] As Figure 1 shown, the rice protein continuous enzymolysis reaction device provided by the embodiment comprises:

[0022] The protein feed liquid conveying pipe 10 and the enzymolysis liquid conveying pipe 9 are connected in series through the enzymolysis feed liquid conveying pipe 11, and the protein feed liquid conveying pipe 10, the enzymolysis liquid conveying pipe 9, the pipeline mixer 6, the continuous reaction tank 7 and the enzyme inactivation heat exchanger 8 are sequentially connected in series through the enzymolysis feed liquid conveying pipe 11.

[0023] Further, the protein feed liquid flow control device is a first flowmeter 1 arranged on the protein feed liquid conveying pipe 10.

[0024] Further, the enzymolysis liquid flow control device comprises a regulating valve 2, a check valve 3 and a second flowmeter 4 arranged in series on the enzymolysis liquid conveying pipe 9.

[0025] Further, a flow controller (not marked in the figure) is further included, the flow controller is connected with the first flowmeter 1, the second flowmeter 4 and the regulating valve 2 respectively, through a preset proportion value, after receiving the collection information of the first flowmeter 1 and the second flowmeter 4, the flow controller compares the analog-digital conversion with the preset proportion value, and regulates the opening degree of the regulating valve 2 to make the protease liquid always maintain the preset proportion with the rice protein feed liquid; the flow control structure of the protease liquid and the rice protein feed liquid can also adopt other controllable flow proportion control devices in the art, and the protease liquid and the rice protein feed liquid can maintain the preset proportion.

[0026] Further, the enzymolysis liquid conveying pipe 9 is connected with the protein feed liquid conveying pipe 10 through the enzyme liquid adding pipe 5, and the enzymolysis liquid conveying pipe 9 is inclined at a certain angle to connect the enzyme liquid adding pipe 5 with the protein feed liquid conveying pipe 10, so that the enzymolysis liquid is mixed with the protein feed liquid at an angle less than 90°, and the preferred inclination angle of the enzymolysis liquid conveying pipe 9 is 30-60° in terms of the liquid inlet direction.

[0027] Further, the continuous reaction tank 7 comprises a plurality of reaction tank bodies connected in series through the enzymolysis feed liquid conveying pipe 11, the reaction tank bodies are longitudinally arranged and enter from the lower part and exit from the upper part through the enzymolysis feed liquid conveying pipe 11, that is, the feed inlet of the reaction tank body is arranged at the lower part, and the discharge outlet is arranged at the upper part of the tank body.

[0028] Further, the reaction tank body is internally provided with stirring impeller, and the reaction tank body is also internally provided with heating control device, the heating control device comprises temperature controller, and frequency conversion heating device arranged at the bottom of the reaction tank body and temperature sensor arranged at the middle part of the reaction tank body which are connected with the temperature controller respectively, the temperature controller is the commonly used temperature controller in the field, the frequency conversion heating device is controlled to output a specific value when the value of the temperature sensor is in the preset threshold range, the frequency conversion heating device is controlled to increase the heating output when the value of the temperature sensor is lower than the lower limit of the preset threshold, the value of the temperature sensor is reduced to the specific value output in the preset range, and the frequency conversion heating device is controlled to reduce the heating output when the value of the temperature sensor is higher than the lower limit of the preset threshold, the value of the temperature sensor is adjusted to the specific value output in the preset range; the heating control of the tank body is the commonly used heating control technology in the field, and in addition to the above heating control device, other heating control devices which can keep the temperature of the flowing liquid in the tank body in a certain range can be applied to the application.

[0029] Further, the enzymolysis feed liquid conveying pipe 11 is a heat preservation pipe, so that the temperature fluctuation of the protein feed liquid and the enzymolysis liquid after mixing can be reduced to the maximum extent during the conveying process.

[0030] Further, the protein feed liquid input in the protein feed liquid conveying pipe 10 is the rice protein feed liquid after being adjusted, the parameters such as pH value, temperature and concentration are adjusted, the protein feed liquid input in the protein feed liquid conveying pipe 10 is driven by the input pump at the front end of the first flowmeter 1, and the conveying time of the protein feed liquid in the continuous reaction tank 7, that is, the reaction time, can be controlled by adjusting the pressure of the input pump.

[0031] The working process of the rice protein continuous enzymolysis reaction device is as follows:

[0032] (1) The rice protein feed liquid after being adjusted is conveyed into the continuous enzymolysis reaction device, the first flowmeter 1 can display the entering flow of the rice protein feed liquid, and the second flowmeter 4 displays the added amount of the protease liquid;

[0033] (2) The protease liquid enters the enzyme liquid adding pipe 5 at a certain angle together with the rice protein feed liquid through the regulating valve 2 and the check valve 3, and the pipeline mixer 6 can ensure that the protease liquid and the rice protein feed liquid are fully mixed; the values of the first flowmeter 1 and the second flowmeter 4 are linked to control the opening degree of the regulating valve 2, so as to ensure the accurate addition of the enzyme liquid; the check valve 3 can prevent the material from being backflushed into the enzyme liquid pipeline; the protease liquid enters the pipeline mixer 6 at a certain angle, so that the entering resistance can be reduced;

[0034] (3) After the protein slurry is added with the enzyme liquid, it passes through the pipeline mixer 6 and enters the continuous reaction tank 7, the protein slurry is fed from the bottom and discharged from the top, and sequentially passes through multiple reaction tanks to realize first-in first-out, the continuous reaction tank 7 is provided with an impeller and a temperature control device, so that the protein slurry can be stirred and the temperature can be controlled and maintained;

[0035] (4) The protein slurry passing through the continuous reaction tank 7 is immediately heated and enzyme-inactivated through the enzyme-inactivation heat exchanger 8 to terminate the enzyme hydrolysis reaction, the protease liquid is added on-line on the pipeline during the whole process, the slurry is fed first and discharged first, and the enzyme is inactivated immediately, which is helpful to realize accurate control of the enzyme hydrolysis reaction time.

[0036] The above description shows and describes the preferred embodiments of the utility model, and it should be understood that the utility model is not limited to the forms disclosed in the present article, and the changes and modifications made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims of the utility model.

Claims

1. A continuous enzymatic hydrolysis device for rice protein, characterized in that, The application relates to a protein material liquid conveying pipe, an enzyme solution conveying pipe, a pipeline mixer, a continuous reaction tank and an enzyme-killing heat exchanger. The protein material liquid conveying pipe and the enzyme solution conveying pipe are connected to the pipeline mixer, the continuous reaction tank and the enzyme-killing heat exchanger in sequence through the enzyme solution conveying pipe.

2. The rice protein continuous enzymatic reaction apparatus according to claim 1, wherein: The protein material liquid flow control device is a first flowmeter arranged on the protein material liquid conveying pipe.

3. The rice protein continuous enzymatic reaction apparatus according to claim 2, wherein: The enzyme solution flow control device comprises a regulating valve, a check valve and a second flowmeter arranged on the enzyme solution conveying pipe in sequence.

4. The rice protein continuous enzymatic reaction apparatus according to claim 3, wherein: The application further comprises a flow controller connected with the first flowmeter, the second flowmeter and the regulating valve.

5. The rice protein continuous enzymatic reaction apparatus according to claim 1, wherein: The enzyme solution conveying pipe is connected with the protein material liquid conveying pipe through an enzyme solution adding pipe, and the enzyme solution conveying pipe is connected with the protein material liquid conveying pipe at a certain angle.

6. The rice protein continuous enzymatic reaction apparatus according to claim 1, wherein: The continuous reaction tank comprises a plurality of reaction tank bodies connected through enzyme solution conveying pipes, and the reaction tank bodies are longitudinally arranged and enter from the bottom and exit from the top through the enzyme solution conveying pipes.

7. The rice protein continuous enzymatic reaction apparatus according to claim 6, wherein: The reaction tank body is internally provided with a stirring impeller and a heating control device, and the heating control device comprises a temperature controller, a variable frequency heating device arranged at the bottom of the reaction tank body and a temperature sensor arranged at the middle part of the reaction tank body.

8. The rice protein continuous enzymatic reaction apparatus according to claim 6, wherein: The enzyme solution conveying pipe is a heat preservation pipe.

9. The continuous enzymatic hydrolysis reaction apparatus for rice protein according to any one of claims 1 to 8, characterized by: The protein material liquid input into the protein material liquid conveying pipe is a large rice protein material liquid after sizing.

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