CN116725104A - Processing method of golden camellia - Google Patents
Processing method of golden camellia Download PDFInfo
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- CN116725104A CN116725104A CN202310874408.0A CN202310874408A CN116725104A CN 116725104 A CN116725104 A CN 116725104A CN 202310874408 A CN202310874408 A CN 202310874408A CN 116725104 A CN116725104 A CN 116725104A
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- 240000001548 Camellia japonica Species 0.000 title claims abstract description 102
- 235000018597 common camellia Nutrition 0.000 title claims abstract description 102
- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 95
- 102000004190 Enzymes Human genes 0.000 claims abstract description 82
- 108090000790 Enzymes Proteins 0.000 claims abstract description 82
- 230000009849 deactivation Effects 0.000 claims abstract description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000001291 vacuum drying Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 84
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 42
- 239000001569 carbon dioxide Substances 0.000 claims description 42
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 22
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 241001328788 Camellia nitidissima Species 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 241001657422 Camellia petelotii Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 244000025254 Cannabis sativa Species 0.000 abstract description 8
- 210000002421 cell wall Anatomy 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 description 12
- 241001122767 Theaceae Species 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 235000014347 soups Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009777 vacuum freeze-drying Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/34—Tea substitutes, e.g. matè; Extracts or infusions thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a processing method of golden camellia, which belongs to the technical field of golden camellia processing, and comprises the steps of immersing picked fresh golden camellia flowers in high-pressure fluid, wherein the pressure of the high-pressure fluid is 10-70 MPa, the temperature is 5-30 ℃, and the immersing time is controlled to be 3-15 min; the high-pressure fluid is a supercritical fluid; taking golden camellia flowers out of the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power is 12-20 KW, the temperature is controlled at 30-50 ℃, the internal pressure is kept at 40-50MPa, and the enzyme deactivation time is 5-10 min; and (3) carrying out vacuum drying on the golden camellia flowers subjected to the microwave de-enzyming at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%. According to the invention, picked fresh golden camellia flowers are immersed in the high-pressure fluid, so that impurities and dust on the surfaces of the flowers can be removed under the condition that water cleaning is not performed, moisture and grass smell in the flowers can be taken away by using high pressure, and certain influence is generated on cell walls in the flowers, so that a good de-enzyming effect can be achieved by matching with certain high pressure in the microwave de-enzyming process without higher temperature.
Description
Technical Field
The invention relates to the technical field of golden camellia processing, in particular to a golden camellia processing method.
Background
The camellia chrysantha flowers are prepared into the substituted tea, and the tea is usually deactivated and dried by a physical heating method. However, the golden camellia flowers which are deactivated by a physical heating mode collapse in appearance and deform during the deactivation process, so that the golden camellia flowers are not attractive. In order to keep the beautiful appearance of the golden camellia, the golden camellia flower is processed by a common vacuum freeze-drying method, and the golden camellia flower is packaged and sold after freeze-drying, so that enzyme of the processed golden camellia flower still keeps activity, the green taste of tea soup and grass of the golden camellia flower is heavy, the golden camellia flower is poor-quality tea, the cold of the tea is large, people with weak bodies drink the golden camellia flower easily to be deficient, and the market popularization is limited. In order to reduce the cold air of golden camellia flowers and remove the grass green taste, the enzyme activity in golden camellia flowers is passivated by carrying out the enzyme deactivation treatment before freeze-drying, the appearance and the color of golden camellia are basically kept unchanged, and a special enzyme deactivation method is needed.
The invention patent application with publication number of CN111657368A discloses a green processing method for golden camellia, which is characterized in that golden camellia is picked and then is placed indoors for spreading and airing for 4-6 hours, then is placed on a golden camellia shaping device for shaping, is subjected to microwave enzyme deactivation, is dried until the water content of the golden camellia is not more than 10%, is packaged according to quality after being sorted, and has the temperature of 180-190 ℃ when the enzyme deactivation is performed, and the flower color, flower fragrance, flower type and functional component content of the golden camellia can be fixed, so that the cracking of the functional components under the long-term storage condition is prevented, but the appearance of the golden camellia is still collapsed and is not attractive.
Disclosure of Invention
In order to solve the problem that the enzyme activity in the golden camellia flowers and the appearance of golden camellia cannot be passivated in the golden camellia fixation process in the prior art, the invention provides a processing method of golden camellia, which comprises the following steps:
step one, immersing picked fresh golden camellia flowers in high-pressure fluid, wherein the pressure of the high-pressure fluid is 10-70 MPa, the temperature is 5-30 ℃, and the immersing time is controlled to be 3-15 min; wherein the high pressure fluid is a supercritical fluid;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 12-20 KW, the enzyme deactivation temperature is controlled to be 30-50 ℃, the pressure in the microwave enzyme deactivation machine is kept at 40-50MPa, and the enzyme deactivation time is 5-10 min;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
The picked fresh golden camellia flowers are immersed in the high-pressure fluid, impurities and dust on the surfaces of the flowers can be removed under the condition that water cleaning is not performed, the water and grass smell inside the flowers can be taken away by using high pressure, and certain influence is generated on the cell walls inside the flowers, so that a good fixation effect can be achieved by matching with certain high pressure and without higher temperature in the microwave fixation process.
Preferably, the supercritical fluid is supercritical carbon dioxide.
Preferably, the pressure of the high-pressure fluid is 30-50 MPa, and the temperature is 20-30 ℃.
Preferably, after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the pressure of the high-pressure fluid is reduced by 5-20MPa, and the pressure is kept for 3-10min.
Preferably, after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the high-pressure fluid pressure is reduced twice, 3-5MPa is reduced each time, and the pressure is kept for 3-5min after each reduction.
Preferably, after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the high-pressure fluid pressure is dynamically regulated to change between a first fluid pressure P1 and a second fluid pressure P2, wherein the first fluid pressure P1 is 10-70 MPa, the second fluid pressure P2 is 5-60 MPa, and the first fluid pressure P1 and the second fluid pressure P2 meet the following conditions: P1-P2 is less than or equal to 5MPa and less than or equal to 10MPa.
Through the change to high-pressure fluid pressure, the cell wall in the flower is controllably expanded and contracted, so that the release of internal moisture and green grass flavor is accelerated, and meanwhile, the cell wall structure is changed, and the auxiliary effect is achieved for subsequent fixation.
Preferably, the water content of the golden camellia flowers treated by the high-pressure fluid is 24-28%.
Preferably, the picked golden camellia fresh flowers are fresh flowers within 12 hours of picking.
Preferably, in the second step, when the microwave enzyme deactivation is performed, introducing carbon dioxide mixed gas into the microwave enzyme deactivation machine, keeping the pressure in the microwave enzyme deactivation machine at 40-50MPa, controlling the enzyme deactivation temperature at 40-45 ℃ and the enzyme deactivation time at 5-10 min.
Preferably, the mixed gas of carbon dioxide and argon is introduced into the microwave enzyme deactivating machine, wherein the volume content of the carbon dioxide is not less than 96%, the volume content of the argon is 0.5-3.0%, and the volume content of the oxygen is not less than 1%.
The technical scheme of the invention has the following beneficial effects:
(1) The picked fresh golden camellia flowers are immersed in the high-pressure fluid, impurities and dust on the surfaces of the flowers can be removed under the condition that water cleaning is not performed, the water and grass smell inside the flowers can be taken away by using high pressure, and certain influence is generated on the cell walls inside the flowers, so that a good fixation effect can be achieved by matching with certain high pressure and without higher temperature in the microwave fixation process.
(2) Through the change to high-pressure fluid pressure, the cell wall in the flower is controllably expanded and contracted, so that the release of internal moisture and green grass flavor is accelerated, and meanwhile, the cell wall structure is changed, and the auxiliary effect is achieved for subsequent fixation.
(3) And high-pressure carbon dioxide is introduced during microwave enzyme deactivation, and the pressure and the carbon dioxide content are controlled, so that the temperature is controlled below 50 ℃ to realize a good microwave enzyme deactivation effect, and the appearance of the golden camellia flower cannot be deformed and collapsed on the premise of ensuring complete passivation of enzyme activity, thereby improving the quality of the golden camellia. In addition, a small amount of argon is added into the carbon dioxide gas, and the passivation effect of the high pressure on the enzymatic activity of the golden camellia is improved.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
According to the embodiment, the picked fresh golden camellia flowers are immersed in the high-pressure fluid, impurities and dust on the surfaces of the flowers can be removed under the condition that water cleaning is not performed, the high pressure can be used for taking away moisture and grass smell inside the flowers, and certain influence is generated on the cell walls inside the flowers, so that a good fixation effect can be achieved by matching certain high pressure and not requiring a high temperature in the microwave fixation process. The specific scheme is as follows:
a processing method of golden camellia comprises the following steps:
step one, immersing picked fresh golden camellia flowers in high-pressure fluid, wherein the pressure of the high-pressure fluid is 10-70 MPa, the temperature is 5-30 ℃, and the immersing time is controlled to be 3-15 min; wherein the high pressure fluid is a supercritical fluid;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 12-20 KW, the enzyme deactivation temperature is controlled to be 30-50 ℃, the pressure in the microwave enzyme deactivation machine is kept at 40-50MPa, and the enzyme deactivation time is 5-10 min;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
As a preferred embodiment, the supercritical fluid is supercritical carbon dioxide.
As a preferred embodiment, the pressure of the high-pressure fluid is 30-50 MPa and the temperature is 20-30 ℃.
As a preferred embodiment, after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the pressure of the high-pressure fluid is reduced by 5-20MPa, and the pressure is kept for 3-10min.
As a preferred embodiment, after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the pressure of the high-pressure fluid is reduced twice, 3-5MPa is reduced each time, and the pressure is maintained for 3-5min after each reduction.
As a preferred embodiment, after the golden camellia flowers are immersed in high-pressure fluid for 3-5min, the high-pressure fluid pressure is dynamically regulated to change between a first fluid pressure P1 and a second fluid pressure P2, wherein the first fluid pressure P1 is 10-70 MPa, the second fluid pressure P2 is 5-60 MPa, and the first fluid pressure P1 and the second fluid pressure P2 meet the following conditions: P1-P2 is less than or equal to 5MPa and less than or equal to 10MPa.
As a preferred embodiment, the water content of the golden camellia flowers treated by the high-pressure fluid is 24-28%.
As a preferred embodiment, the fresh flowers of the golden camellia are picked within 12 hours.
As a preferred implementation mode, in the second step, carbon dioxide mixed gas is introduced into the microwave enzyme deactivation machine, the pressure in the microwave enzyme deactivation machine is kept at 40-50MPa, the enzyme deactivation temperature is controlled at 40-45 ℃, and the enzyme deactivation time is 5-10 min.
As a preferable implementation mode, introducing mixed gas of carbon dioxide and argon into a microwave enzyme deactivating machine, wherein the volume content of the carbon dioxide is not less than 96%, the volume content of the argon is 0.5-3.0%, and the volume content of the oxygen is not less than 1%.
The beneficial effects of the camellia nitidissima processing method in this embodiment are further reviewed below by several sets of examples and comparative examples.
Embodiment one:
a processing method of golden camellia comprises the following steps:
soaking picked fresh golden camellia flowers in supercritical carbon dioxide, wherein the pressure of the supercritical carbon dioxide is 40MPa, the temperature is 25 ℃, and the soaking time is controlled to be 10mi < n >;
after the golden camellia flowers are immersed in the high-pressure fluid for 5min, the high-pressure fluid pressure is dynamically adjusted to change between a first fluid pressure P1 and a second fluid pressure P2, wherein the first fluid pressure P1 is 40MPa, the second fluid pressure P2 is 35MPa, and the change frequency is 10 times/min.
Taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 15KW, the enzyme deactivation temperature is controlled at 42 ℃, carbon dioxide mixed gas is introduced into the microwave enzyme deactivation machine, the pressure is kept at 45MPa, and the enzyme deactivation time is 8 min; wherein the volume content of carbon dioxide in the carbon dioxide mixed gas is 98.0 percent, the volume content of argon is 1.5 percent, and the mixed gas does not contain oxygen;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Embodiment two:
a processing method of golden camellia comprises the following steps:
soaking picked fresh golden camellia flowers in supercritical carbon dioxide, wherein the pressure of the supercritical carbon dioxide is 40MPa, the temperature is 25 ℃, and the soaking time is controlled to be 15mi < n >;
after the golden camellia flowers are immersed in the high-pressure fluid for 5min, the pressure of the high-pressure fluid is reduced to 30MPa, and the pressure is kept for 10min;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 15KW, the enzyme deactivation temperature is controlled at 42 ℃, carbon dioxide mixed gas is introduced into the microwave enzyme deactivation machine, the pressure is kept at 45MPa, and the enzyme deactivation time is 8 min; wherein the volume content of carbon dioxide in the carbon dioxide mixed gas is 98.0 percent, the volume content of argon is 1.5 percent, and the mixed gas does not contain oxygen;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Embodiment III:
a processing method of golden camellia comprises the following steps:
soaking picked fresh golden camellia flowers in supercritical carbon dioxide, wherein the pressure of the supercritical carbon dioxide is 40MPa, the temperature is 25 ℃, and the soaking time is controlled to be 15mi < n >;
immersing golden camellia flowers in high-pressure fluid for 5min, reducing the pressure of the high-pressure fluid twice, reducing the pressure of 5MPa each time, and maintaining the pressure for 5min after each reduction;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 15KW, the enzyme deactivation temperature is controlled at 42 ℃, carbon dioxide mixed gas is introduced into the microwave enzyme deactivation machine, the pressure is kept at 45MPa, and the enzyme deactivation time is 8 min; wherein the volume content of carbon dioxide in the carbon dioxide mixed gas is 98.0 percent, the volume content of argon is 1.5 percent, and the mixed gas does not contain oxygen;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Embodiment four:
a processing method of golden camellia comprises the following steps:
soaking picked fresh golden camellia flowers in supercritical carbon dioxide, wherein the pressure of the supercritical carbon dioxide is 40MPa, the temperature is 25 ℃, and the soaking time is controlled to be 15mi < n >;
immersing golden camellia flowers in high-pressure fluid for 5min, reducing the pressure of the high-pressure fluid twice, reducing the pressure of 5MPa each time, and maintaining the pressure for 5min after each reduction;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 15KW, the enzyme deactivation temperature is controlled at 42 ℃, the pressure in the microwave enzyme deactivation machine is kept at 45MPa, and the enzyme deactivation time is 8mi < n >;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Fifth embodiment:
a processing method of golden camellia comprises the following steps:
soaking picked fresh golden camellia flowers in supercritical carbon dioxide, wherein the pressure of the supercritical carbon dioxide is 40MPa, the temperature is 25 ℃, and the soaking time is controlled to be 15min;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 15KW, the enzyme deactivation temperature is controlled at 42 ℃, carbon dioxide mixed gas is introduced into the microwave enzyme deactivation machine, the pressure is kept at 45MPa, and the enzyme deactivation time is 8 min; wherein the volume content of carbon dioxide in the carbon dioxide mixed gas is 98.0 percent, the volume content of argon is 1.5 percent, and the mixed gas does not contain oxygen;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Comparative example one:
a processing method of golden camellia comprises the following steps:
carrying out microwave fixation treatment on picked fresh golden camellia flowers, wherein the power of a microwave fixation machine is 15KW, the fixation temperature is controlled to be 42 ℃, carbon dioxide mixed gas is introduced into the microwave fixation machine, the pressure is kept at 45MPa, and the fixation time is 10min; wherein the volume content of carbon dioxide in the carbon dioxide mixed gas is 98.0 percent, the volume content of argon is 1.5 percent, and the mixed gas does not contain oxygen;
and step two, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Comparative example two:
a processing method of golden camellia comprises the following steps:
soaking picked fresh golden camellia flowers in supercritical carbon dioxide, wherein the pressure of the supercritical carbon dioxide is 40MPa, the temperature is 25 ℃, and the soaking time is controlled to be 10mi < n >;
after the golden camellia flowers are immersed in the high-pressure fluid for 5min, the high-pressure fluid pressure is dynamically adjusted to change between a first fluid pressure P1 and a second fluid pressure P2, wherein the first fluid pressure P1 is 40MPa, the second fluid pressure P2 is 35MPa, and the change frequency is 10 times/min.
Taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 15KW, the enzyme deactivation temperature is controlled at 42 ℃, and the enzyme deactivation time is 8 min;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
Oxidase activity test and appearance evaluation were performed on golden camellia flowers obtained in five groups of examples, and the following are specific:
TABLE 1 golden camellia flower various index test and evaluation results
The sensory quality of the golden camellia in the five groups of examples is evaluated, the special aroma of the golden camellia is reserved, the shape and the color are good, the tea soup is clear, the taste is mellow and fresh, and the taste of the tea soup in the two groups of comparative examples is slightly bad.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The processing method of the golden camellia is characterized by comprising the following steps of:
step one, immersing picked fresh golden camellia flowers in high-pressure fluid, wherein the pressure of the high-pressure fluid is 10-70 MPa, the temperature is 5-30 ℃, and the immersing time is controlled to be 3-15 min; wherein the high pressure fluid is a supercritical fluid;
taking out golden camellia flowers from the high-pressure fluid to perform microwave enzyme deactivation treatment, wherein the power of a microwave enzyme deactivation machine is 12-20 KW, the enzyme deactivation temperature is controlled to be 30-50 ℃, the pressure in the microwave enzyme deactivation machine is kept at 40-50MPa, and the enzyme deactivation time is 5-10 min;
and step three, carrying out vacuum drying on the golden camellia flowers subjected to microwave enzyme deactivation at the temperature of 10-50 ℃ and the vacuum degree of 5-10 Pa until the water content of the flowers is 5-7%.
2. The method for processing camellia nitidissima according to claim 1, wherein the supercritical fluid is supercritical carbon dioxide.
3. The processing method of golden camellia according to claim 2, wherein the pressure of the high-pressure fluid is 30-50 MPa and the temperature is 20-30 ℃.
4. The processing method of golden camellia according to claim 1, wherein after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the pressure of the high-pressure fluid is reduced by 5-20MPa, and the pressure is kept for 3-10min.
5. The method for processing camellia chrysantha according to claim 1, wherein the camellia chrysantha flower is immersed in the high-pressure fluid for 3 to 5 minutes, the pressure of the high-pressure fluid is reduced twice, 3 to 5MPa each time, and the pressure is maintained for 3 to 5 minutes after each reduction.
6. The processing method of golden camellia according to claim 1, wherein after the golden camellia flowers are immersed in the high-pressure fluid for 3-5min, the high-pressure fluid pressure is dynamically adjusted to change between a first fluid pressure P1 and a second fluid pressure P2, wherein the first fluid pressure P1 is 10-70 MPa, the second fluid pressure P2 is 5-60 MPa, and the first fluid pressure P1 and the second fluid pressure P2 satisfy the following conditions: P1-P2 is less than or equal to 5MPa and less than or equal to 10MPa.
7. The method for processing camellia nitidissima according to claim 1, wherein the water content of camellia nitidissima flowers subjected to high-pressure fluid treatment is 24-28%.
8. The method for processing camellia nitidissima according to claim 1, wherein the picked camellia nitidissima fresh flowers are fresh flowers within 12 hours of picking.
9. The processing method of golden camellia according to claim 1, wherein in the second step, carbon dioxide mixed gas is introduced into a microwave enzyme deactivation machine, the pressure in the microwave enzyme deactivation machine is kept at 40-50MPa, the enzyme deactivation temperature is controlled at 40-45 ℃, and the enzyme deactivation time is 5-10 min.
10. The processing method of golden camellia according to claim 9, wherein mixed gas of carbon dioxide and argon is introduced into a microwave enzyme deactivating machine, wherein the volume content of the carbon dioxide is not less than 96%, the volume content of the argon is 0.5-3.0%, and the volume content of the oxygen is not less than 1%.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262917A (en) * | 2013-05-28 | 2013-08-28 | 广西桂人堂金花茶产业集团股份有限公司 | Golden camellia flower tea processing method |
| CN105519709A (en) * | 2016-01-26 | 2016-04-27 | 江苏耐雀生物工程技术有限公司 | Oxygen-isolating microwave fixation method for high-quality tea |
| CN108552369A (en) * | 2017-12-28 | 2018-09-21 | 唐秀廷 | A kind of tea-drinking preparation method for material of the active material containing golden camellia tea |
| CN109907253A (en) * | 2019-01-07 | 2019-06-21 | 塔尔普(北京)制药技术有限公司 | A kind of preparation method of low-temperature explosion-puffing drying sea cucumber |
| CN112013632A (en) * | 2020-09-10 | 2020-12-01 | 河南科技大学 | Drying method |
| CN113974048A (en) * | 2021-11-30 | 2022-01-28 | 刘长宝 | Supercritical wall breaking treatment method for coarse cereals |
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2023
- 2023-07-17 CN CN202310874408.0A patent/CN116725104A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262917A (en) * | 2013-05-28 | 2013-08-28 | 广西桂人堂金花茶产业集团股份有限公司 | Golden camellia flower tea processing method |
| CN105519709A (en) * | 2016-01-26 | 2016-04-27 | 江苏耐雀生物工程技术有限公司 | Oxygen-isolating microwave fixation method for high-quality tea |
| CN108552369A (en) * | 2017-12-28 | 2018-09-21 | 唐秀廷 | A kind of tea-drinking preparation method for material of the active material containing golden camellia tea |
| CN109907253A (en) * | 2019-01-07 | 2019-06-21 | 塔尔普(北京)制药技术有限公司 | A kind of preparation method of low-temperature explosion-puffing drying sea cucumber |
| CN112013632A (en) * | 2020-09-10 | 2020-12-01 | 河南科技大学 | Drying method |
| CN113974048A (en) * | 2021-11-30 | 2022-01-28 | 刘长宝 | Supercritical wall breaking treatment method for coarse cereals |
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