阅读说明：本技术 一种超临界co2流体萃取鸡精工艺 (Supercritical CO2Fluid extraction process of chicken essence ) 是由 史家怡 于 2020-11-12 设计创作，主要内容包括：本发明涉及食品加工技术领域,具体为一种超临界CO-2流体萃取鸡精工艺,包括萃取器、第三分离器、热交换器、液体泵、CO-2储存器、鸡肉消毒箱、抽提相热交换器、板式热交换器、第一分离器、第二分离器和冷凝机,该工艺包括以下步骤：液体的CO-2经过多个热交换器后形成超临界的CO-2,进入到萃取器的内部进行萃取,超临界流体CO-2依次流经三级分离器进行分离,并从分离器的上部流出,通过分离器底部将分离器内部的鸡精取出。本发明超临界CO-2流体具有一定的临界的温度和压力对鸡肉流体进行萃取,以无毒、材料成本低等优势,将鸡精的含水量缩小到0.1%以内,与传统工艺相比,具有生产周期短,工艺简单,提取效率高和产品纯度高等优点。(The invention relates to the technical field of food processing, in particular to supercritical CO 2 The chicken essence fluid extracting process includes one extractor, one third separator, one heat exchanger, one liquid pump, and CO 2 The process comprises the following steps of: CO of liquid 2 Supercritical CO formation after multiple heat exchangers 2 Entering the extractor for extraction, supercritical fluid CO 2 Sequentially flows through the three-stage separator for separation, flows out from the upper part of the separator, and takes out the chicken essence in the separator through the bottom of the separator. Supercritical CO of the invention 2 The fluid has certain critical temperature and pressure to extract the chicken fluid, so that the water content of the chicken essence is reduced to be within 0.1% by virtue of the advantages of no toxicity, low material cost and the like.)

1. Supercritical CO₂The technology for extracting chicken essence by fluid is characterized by comprising an extractor (1), a third separator (2), a heat exchanger (3), a liquid pump (4), and CO₂The process comprises a storage (5), a chicken disinfection box (6), an extraction phase heat exchanger (7), a plate heat exchanger (8), a first separator (9), a second separator (10) and a condenser (11), and comprises the following steps:

the method comprises the following steps: extracting chicken essence, wherein the extraction process comprises the following steps;

s1: chicken to be extracted is placed in a chicken sterilizing box (6) to be sterilized, then the temperature is adjusted through a plate heat exchanger (8), the chicken is baked, chicken essence oil overflowing after the chicken is baked is discharged into an extractor (1) to be pre-concentrated, chicken essence is purified, the content of the chicken essence in the extractor (1) reaches 75%, the temperature in the plate heat exchanger (8) is kept at 40-60 ℃, and the pressure range in the extractor (1) is 10-15 Pa;

s2: liquid pump (4) from CO₂Liquid CO in the storage container (5)₂Is extracted and then passes through an exchanger (3) to form supercritical CO₂Then enters the interior of an extractor (1) for extraction, and the supercritical CO is used₂The flow rate of the chicken essence entering the extractor (1) is 20-50L/h, and the extraction time of the chicken essence in the extractor (1) is 1-2 hours;

step two: separating chicken essence, and extracting CO from the chicken essence by an extractor (1)₂The fluid enters an extraction phase heat exchanger (7), is separated in a first separator (9) under the action of the extraction phase heat exchanger (7), the temperature of the extraction phase heat exchanger (7) is kept at 95-98 ℃, the pressure of the separator is 10-20Pa, the temperature of the separators is 40-60 ℃, and the high-pressure fluid which flows out of the first separator (9) and is entrained with chicken essence extract is sent into a second separator (10)) Separating, allowing the concentrated fluid separated by the second separator (10) to enter the third separator (2), allowing the separated chicken essence extract to remain in the separator, respectively extracting chicken essence from the bottom of the separator,

step three: supercritical fluid CO_2，Recycling of supercritical fluid CO discharged from the third separator (2)₂Directly discharged into the heat exchanger (3) and the condenser (11) and then discharged into the extractor (1) again by the liquid pump (4) for recycling.

2. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: CO in step two₂The liquid passes through the heat exchanger (3) under the action of the liquid pump (4), and subcritical or supercritical CO is formed under the action of the heat exchanger (3)₂The fluid is pressurized by a liquid pump (4) and enters the extractor (1).

3. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: the extraction and separation time of the chicken essence to be extracted from the first step to the second step is 2-4 hours.

4. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: supercritical CO discharged from the third separator (2) in step three₂Is discharged into a condenser (11) through a liquid pump (4), is discharged into a heat exchanger (3) again through the liquid pump (4) under the action of the condenser (11), and then enters into the extractor (1) again.

5. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: the separator in the second step is a three-stage separator, and supercritical fluid CO is used₂Sequentially flows through three stages of separators for separation.

6. A method as claimed in claim 1Supercritical CO₂The fluid extraction chicken essence process is characterized in that: and step two, all the air valves are in a closed state when the flow is divided, wherein the first separator (9), the second separator (10) and the third separator (2) are fixedly provided with a safety valve, an air inlet switch, an air outlet valve and a fine adjustment valve.

7. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: supercritical fluid CO₂Flows out from the upper parts of the three separators, and takes out the chicken essence inside the three separators through the bottom parts of the three separators.

8. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: the separator (2) is communicated with the heat exchanger (3) through a pipeline, the heat exchanger (3) is communicated with the condenser (11), and the condenser (11) is communicated with the liquid pump (4) through a pipeline.

9. A supercritical CO according to claim 1₂The fluid extraction chicken essence process is characterized in that: one end of the heat exchanger (3) is connected with the bottom of the extractor (1) through a feeding pipe, and a second heat exchanger (12) is connected between the heat exchanger (3) and the extractor (1).

Technical Field

The invention relates to a chicken essence extraction process, in particular to supercritical CO₂A process for extracting chicken essence by fluid belongs to the technical field of food processing.

Background

The chicken essence is extracted by extracting essence from chicken drop by drop, protein in chicken is hydrolyzed into polypeptide, the molecular size is small, the absorption is facilitated, the nutrition value is high, and the chicken essence is a good nutrition supply way.

At present, chicken essence extraction is carried out on chicken liquid in a water-proof steaming and dripping mode, the extraction is insufficient, and the efficiency is low, so that improvement on a chicken essence extraction system is urgently needed to solve the existing problems.

Disclosure of Invention

The invention aims to provide supercritical CO₂Process for fluid extraction of chicken essence by supercritical CO₂The fluid has certain critical temperature and pressure to extract the chicken fluid, so that the water content of the chicken essence is reduced to be within 0.1% by virtue of the advantages of no toxicity, low material cost and the like.

In order to achieve the purpose, the invention adopts the main technical scheme that:

supercritical CO₂The chicken essence fluid extracting process includes one extractor, one third separator, one heat exchanger, one liquid pump, and CO₂The process comprises the following steps of:

the method comprises the following steps: extracting chicken essence, wherein the extraction process comprises the following steps;

s1: the chicken meat to be extracted is placed in a chicken meat sterilizing box for sterilization, then the temperature is adjusted through a plate heat exchanger, the chicken meat is baked, chicken essence oil overflowing after the chicken meat is baked is discharged into an extractor for pre-concentration chicken essence purification, the content of the chicken essence in the extractor reaches 75%, the temperature in the plate heat exchanger is kept at 40-60 ℃, and the pressure range in the extractor is 10-15 Pa;

s2: liquid pumped from CO₂Liquid CO in the storage container₂Is extracted and then passes through an exchanger to form supercritical CO₂Then enters an extractorIs subjected to an internal extraction, the above supercritical CO₂The flow rate entering the extractor is 20-50L/h, and the extraction time of the chicken essence in the extractor is 1-2 hours;

step two: separating chicken essence, and extracting CO with extractor₂The fluid enters an extraction phase heat exchanger, the fluid is separated in a first separator under the action of the extraction phase heat exchanger, the temperature of the extraction phase heat exchanger is kept at 95-98 ℃, the pressure of the separator is 10-20Pa, the temperature of the separator is 40-60 ℃, the high-pressure fluid which flows out of the first separator and is carried with chicken essence extracts is sent to a second separator for separation, the concentrated fluid separated by the second separator enters a third separator, the separated chicken essence extracts are left in the separators, and the extracted chicken essence is extracted from the bottoms of the separators respectively.

Step three: supercritical fluid CO_2，Recycling of supercritical fluid CO discharged from the third separator₂Directly discharged into a heat exchanger and a condenser, and then discharged into an extractor again by a liquid pump for recycling.

Preferably, CO in step two₂The liquid passes through the heat exchanger under the action of the liquid pump, and subcritical or supercritical CO is formed under the action of the heat exchanger₂The fluid is pressurized into the extractor at a liquid pump.

Preferably, the extraction and separation time of the chicken essence to be extracted in the first step to the second step is 2-4 hours.

Preferably, the supercritical CO discharged from the third separator in step three₂Is discharged into the condenser through the liquid pump, is discharged into the heat exchanger again through the liquid pump under the action of the condenser, and then enters the extractor again.

Preferably, the separator of the second step is a three-stage separator, and the supercritical fluid CO is₂Sequentially flows through three stages of separators for separation.

Preferably, in the second step, all the gas valves should be in a closed state when the flow splitting is performed, wherein the first separator, the second separator and the third separator are all fixedly provided with a safety valve, a gas inlet switch, a gas outlet valve and a fine adjustment valve.

Preferably, supercritical fluid CO₂Flows out from the upper parts of the three separators, and takes out the chicken essence inside the three separators through the bottom parts of the three separators.

Preferably, the separator is communicated with a heat exchanger through a pipeline, the heat exchanger is communicated with a condenser, and the condenser is communicated with the liquid pump through a pipeline.

Preferably, one end of the heat exchanger is connected with the bottom of the extractor through a feeding pipe, and a second heat exchanger is connected between the heat exchanger and the extractor.

The invention has at least the following beneficial effects:

1. supercritical CO₂The fluid has certain critical temperature and pressure, simultaneously has the advantages of no toxicity, low material cost and the like, reduces the water content of the chicken essence to be within 0.1 percent, and has the advantages of short production period, simple process, high extraction efficiency, high product purity and the like compared with the traditional process.

2. Supercritical CO discharged from the third separator₂Is discharged into a condenser through a liquid pump, is discharged into a heat exchanger again through the liquid pump under the action of the condenser, and performs a new round of circulation to realize CO₂Recycling and reusing, thereby effectively saving the production cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the process equipment of the present invention;

FIG. 2 is a schematic process flow diagram of the present invention.

In the figure, 1-extractor, 2-third separator, 3-heat exchanger, 4-liquid pump, 5-CO₂The device comprises a storage, 6-a chicken disinfection box, 7-an extraction phase heat exchanger, 8-a plate heat exchanger, 9-a first separator, 10-a second separator, 11-a condenser and 12-a second heat exchanger.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1, the present embodiment provides supercritical CO₂The chicken essence fluid extraction process includes an extractor 1, a third separator 2, a heat exchanger 3, a liquid pump 4, and CO₂The process comprises the following steps of:

the method comprises the following steps: extracting chicken essence, wherein the extraction process comprises the following steps;

s1: the method comprises the following steps of putting chicken to be extracted into a chicken disinfection box 6 for disinfection, then adjusting the temperature through a plate heat exchanger 8, baking the chicken, discharging chicken essence oil overflowing after the chicken is baked into an extractor 1 for pre-concentration chicken essence purification, and enabling the content of the chicken essence in the extractor 1 to reach 75%, wherein the temperature in the plate heat exchanger 8 is kept at 40-60 ℃, and the pressure range in the extractor 1 is 10-15 Pa;

s2: liquid pump 4 from CO₂Liquid CO is charged into the reservoir 5₂Is extracted and then passes through exchanger 3 to form supercritical CO₂，CO₂The liquid passes through the heat exchanger 3 under the action of the liquid pump 4, and subcritical or supercritical CO is formed under the action of the heat exchanger 3₂Fluid, supercritical CO₂The fluid has certain critical temperature and pressure, simultaneously has the advantages of no toxicity, low material cost and the like, is pressurized by a liquid pump 4 to enter the extractor 1 and then enters the extractor 1 for extraction, and the supercritical CO has the advantages of high temperature, high pressure, high extraction efficiency, low cost and the like₂The flow rate of the chicken essence entering the extractor 1 is 20-50L/h, and the extraction time of the chicken essence in the extractor 1 is 1-2 hours.

Step two: separating chicken essence, and extracting CO from the chicken essence by the extractor 1₂The fluid enters an extraction phase heat exchanger 7, and is separated in a first separator 9 under the action of the extraction phase heat exchanger 7, the temperature of the extraction phase heat exchanger 7 is kept at 95-98 ℃, and the pressure of the separatorThe force is 10-20Pa, the temperature of the separators is 40-60 ℃, the high-pressure fluid which flows out from the first separator 9 and is carried with the chicken essence extract is sent into the second separator 10 for separation, the fluid which is concentrated after being separated by the second separator 10 enters the third separator 2, the separated chicken essence extract is left in the separators, and the extracted chicken essence is extracted from the bottoms of the separators respectively.

Step three: supercritical fluid CO_2，Recycle of supercritical fluid CO discharged from the third separator 2₂Directly discharged into the heat exchanger 3 and the condenser 11, and then discharged into the extractor 1 again by the liquid pump 4 for recycling.

In this embodiment, as shown in fig. 1, the extraction and separation time of the chicken essence to be extracted from step one to step two is 2-4 hours, and compared with the conventional process, the method has the advantages of short production period, simple process, high extraction efficiency, high product purity and the like.

In the present embodiment, as shown in FIG. 1, the supercritical CO discharged from the third separator 2 in step three is₂Is discharged into a condenser 11 through a liquid pump 4, is discharged into a heat exchanger 3 again through the liquid pump 4 under the action of the condenser 11, and then enters an extractor 1 again, and supercritical CO discharged from a third separator₂Is discharged into a condenser through a liquid pump, is discharged into a heat exchanger again through the liquid pump under the action of the condenser, and performs a new round of circulation to realize CO₂Recycling and reusing, thereby effectively saving the production cost.

In this embodiment, as shown in FIG. 1, the separator of the second step is a three-stage separator, and the supercritical fluid CO is₂Flow through tertiary separator in proper order and separate, the purity of effectual promotion product.

In this embodiment, as shown in fig. 1, in the second step, all the gas valves should be in a closed state when performing separation, wherein the first separator 9, the second separator 10, and the third separator 2 are all fixedly provided with a safety valve, a gas inlet switch, a gas outlet valve, and a fine adjustment valve, so as to improve the sealing performance of the device and the extraction efficiency.

In this example, as shown in FIG. 1, supercritical fluid CO₂From three separatorsThe chicken essence flows out from the upper part and is taken out from the three separators through the bottoms of the three separators, so that the used CO can be conveniently collected₂And is beneficial to saving the production cost.

In this embodiment, as shown in FIG. 1, one end of the heat exchanger 3 is connected to the bottom of the extractor 1 through a feed pipe, and a second heat exchanger 12 is connected between the heat exchanger 3 and the extractor 1 to promote CO₂Utilization ratio of (2) to realize CO₂Recycling, and has the advantages of high extraction efficiency, high product purity and the like.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to achieve the technical effect basically.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or system in which the element is included.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.