CN110754554A - Preparation method of polygonum multiflorum tea - Google Patents
Preparation method of polygonum multiflorum tea Download PDFInfo
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- CN110754554A CN110754554A CN201911271791.0A CN201911271791A CN110754554A CN 110754554 A CN110754554 A CN 110754554A CN 201911271791 A CN201911271791 A CN 201911271791A CN 110754554 A CN110754554 A CN 110754554A
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- 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
Abstract
The invention discloses a preparation method of polygonum multiflorum tea, and belongs to the field of tea. Mainly comprises (1) picking tender shoots of 2-4 leaves on caulis Polygoni Multiflori in the morning, cleaning, air drying, and removing surface water; (2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 to-15 ℃ for 0.5 to 1 hour, taking out the polygonum multiflorum leaves, and directly subliming the polygonum multiflorum leaves in vacuum; (3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting for 24-48 h; oven drying, and sterilizing. According to the invention, polygonum multiflorum leaves are frozen and then sublimated, and the cell wall can be broken by ultralow temperature, so that cytoplasm in the cell can be dissolved out, beneficial substances in the cytoplasm can not be damaged, and the medicinal value of polygonum multiflorum tea is improved; the quick-frozen tender polygonum multiflorum leaves are directly sublimated by vacuum, the efficiency is high, and the nutrient substances in the tender polygonum multiflorum leaves are effectively preserved.
Description
Technical Field
The invention relates to the field of tea, and particularly relates to a preparation method of polygonum multiflorum tea.
Background
Polygonum multiflorum, also named as wild seedling, Japanese climbing fern vine, Japanese climbing fern stem, fleece-flower root, herba speranskiae tuberculatae, Japanese ardisia, Japanese stephania root, ranunculus japonicus, snake grass, Chenopodium album, horse liver stone, Japanese climbing fern stem, kojiu etc., is a perennial twining vine plant of Polygonaceae. The root is slender, the end becomes a fat root tuber, and the appearance is reddish brown to dark brown. The fleece-flower root is a traditional Chinese medicine with a plurality of legends. The fleece-flower root, radix polygoni multiflori preparata and radix polygoni multiflori which is dug out and dried in the sun, has the efficacy of detoxifying, preventing malaria and relaxing bowel, and is commonly used for treating scrofula, sore and carbuncle, rubella, pruritus, intestinal dryness and constipation and other symptoms; the prepared fleece flower root is the fleece flower root which is processed, and has the efficacies of tonifying essence and blood, blackening beard and hair, strengthening bones and muscles and tonifying liver and kidney. In the field of traditional Chinese medicine, the tuber fleeceflower root is used as a medicine because of its excellent curative effect. Currently, the use of polygonum multiflorum is mainly in roots.
While polygonum multiflorum leaves have the functions of detoxifying and dissipating stagnation; killing parasites and relieving itching, and is mainly used for treating pyocutaneous disease; scrofula; scabies and tinea. The application method is mainly external application, such as raw plaster, decoction, water washing or pounding. The existing method for using tender leaves of polygonum multiflorum as tea leaves comprises the main steps of carrying out processes of deactivation of enzymes (sunning), green making (rocking), deactivation of enzymes, rolling, drying and the like on polygonum multiflorum. The polygonum multiflorum leaves contain vitexin, apigenin and rutin, and also contain a large amount of vitamin B2, vitamin C and carotene, wherein the vitamin B2 and the vitamin C are 2-40 times of those of common vegetables; the carotene is 2-300 times of common vegetable, and contains a large amount of microelements and amino acids. At present, the method for preparing polygonum multiflorum leaves into tea for eating is available. The Polygonum multiflorum and Codonopsis lanceolata health tea disclosed in publication No. CN1757297A is prepared from Polygonum multiflorum, Ganoderma lucidum, Codonopsis lanceolata and Polygonum sibiricum as main materials, and Morinda officinalis and Cistanchis herba as auxiliary materials, wherein Polygonum multiflorum is mainly used, but not the polygonum multiflorum and Polygonum multiflorum are used as main materials. Also disclosed in publication No. CN103815102A is a flavored semi-fermented Polygonum multiflorum leaf tea and its preparation method, which mainly comprises (1) picking fresh leaves; (2) withering, (3) rocking, (4) treating with exogenous enzyme to comprehensively enhance aroma, (5) removing bitter and deactivating enzyme, (6) kneading, (7) baking with gross fire, (8) kneading, (9) baking with full fire, and (10) drying; wherein the green rocking is carried out for 5-6 times, the exogenous enzyme is also added, and the high temperature (100 ℃ C.) can kill the active enzyme in the polygonum multiflorum leaves and volatilize the volatile oil at the same time, thereby reducing the fragrance of the polygonum multiflorum leaves. Meanwhile, the preparation method has complex flow. Also disclosed in publication No. CN104489187A is a making process of polygonum multiflorum tea, which comprises the steps of 1) picking, 2) airing and green, 3) deactivating enzymes for the first time, 4) fermenting, 5) soaking for the first time, 6) deactivating enzymes for the second time, 7) soaking for the second time, 8) baking for the first time, 9) rolling, 10) shaping, 11) spreading and cooling for the first time, 12) baking for the second time, 13) spreading and cooling for the second time, 14) drying, and 15) promoting oxidation slightly. And the temperature of 220-280 ℃ is adopted during the water removing, so that the nutrient substances are easy to damage, and the process is complex. The preparation method of polygonum multiflorum tea disclosed in publication No. CN107535653A mainly comprises the steps of (1) picking, (2) steaming for the first time, (3) steaming for the second time, (4) steaming for the third time, (5) rolling, and (6) drying. The preparation method can easily destroy protein and vitamins at high cooking temperature, and reduce effect. And repeated cooking improves the added process flow.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation method of polygonum multiflorum tea, which is simple in preparation method and flow and capable of reducing loss of nutrient components in polygonum multiflorum leaves.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 to-15 ℃ for 0.5 to 1 hour, taking out the polygonum multiflorum leaves, and directly subliming the polygonum multiflorum leaves in vacuum;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting for 24-48 h; oven drying, and sterilizing.
Further, the vacuum sublimation time in the step (2) is 10-30 min.
Further, the atmospheric pressure of the vacuum sublimation in the step (2) is 0.3-0.5 MPa.
Preferably, the atmospheric pressure of vacuum sublimation in the step (2) is 0.5 MPa.
Further, the temperature of the drying in the step (3) is 110-.
Preferably, the temperature of the vacuum drying in the step (3) is 110 DEG C
Further, the natural fermentation temperature in the step (3) is 35-37 ℃.
Preferably, the natural fermentation temperature in the step (3) is 37 ℃.
The preparation method of the polygonum multiflorum tea has the beneficial effects that:
(1) according to the invention, polygonum multiflorum leaves are frozen and then sublimated, and the cell wall can be broken by ultralow temperature, so that cytoplasm in the cell can be dissolved out, beneficial substances in the cytoplasm are not damaged, and the medicinal value of polygonum multiflorum tea is improved.
(2) In the preparation method, the quick-frozen tender polygonum multiflorum leaves are directly and rapidly sublimated by using the atmospheric pressure of 0.3-0.5MPa, and the moisture in the leaves can be rapidly removed by direct vacuum sublimation because the moisture in the leaves is frozen; and the vacuum sublimation is efficient, the time is fast, the vacuum sublimation can also prevent the sublimated substances from being decomposed due to overhigh temperature or being oxidized during sublimation, and the nutrient substances in the polygonum multiflorum tender leaves are effectively preserved.
(3) In the preparation method, the tea leaves after wall breaking are subjected to micro fermentation at the temperature of 35-37 ℃ to form the fermented tea, so that the nutritional ingredients, the aroma and the color of the tea leaves can be improved.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 0.5h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.3MPa, and the vacuum sublimation time is 30 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 24 hr; oven drying at 110 deg.C, and microwave sterilizing.
Example 2
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-15 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.3MPa, and the vacuum sublimation time is 30 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 36 h; oven drying at 110 deg.C, and microwave sterilizing.
Example 3
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.3MPa, and the vacuum sublimation time is 30 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 24 hr; oven drying at 120 deg.C, and sterilizing with microwave.
Example 4
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.5MPa, and the vacuum sublimation time is 30 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 48 h; oven drying at 120 deg.C, and sterilizing with microwave.
Example 5
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.5MPa, and the vacuum sublimation time is 20 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 24 hr; oven drying at 115 deg.C, and sterilizing with microwave.
Example 6
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.5MPa, and the vacuum sublimation time is 10 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 48 h; oven drying at 115 deg.C, and sterilizing with microwave.
Example 7
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.5MPa, and the vacuum sublimation time is 10 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 35 deg.C for 24 hr; oven drying at 110 deg.C, and microwave sterilizing.
Example 8
A preparation method of polygonum multiflorum tea comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 ℃ for 1h, taking out, and directly carrying out vacuum sublimation; the atmospheric pressure of air sublimation is 0.5MPa, and the vacuum sublimation time is 10 min;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting at 37 deg.C for 48 h; oven drying at 110 deg.C, and microwave sterilizing.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (5)
1. A preparation method of polygonum multiflorum tea is characterized by comprising the following steps: the method comprises the following steps:
(1) picking tender shoots of 2-4 leaves on the vine of the tuber fleeceflower in the morning, cleaning and airing, and removing surface water;
(2) quickly freezing the aired polygonum multiflorum leaves at the temperature of-18 to-15 ℃ for 0.5 to 1 hour, taking out the polygonum multiflorum leaves, and directly subliming the polygonum multiflorum leaves in vacuum;
(3) twisting the sublimated fleece-flower root leaves, and air-drying or sun-drying until the water content is 30-40%; naturally fermenting for 24-48 h; oven drying, and microwave sterilizing.
2. The method for preparing polygonum multiflorum tea according to claim 1, wherein the method comprises the following steps: the vacuum sublimation time in the step (2) is 10-30 min.
3. The method for preparing polygonum multiflorum tea according to claim 1, wherein the method comprises the following steps: the atmospheric pressure of the vacuum sublimation in the step (2) is 0.3-0.5 MPa.
4. The method for preparing polygonum multiflorum tea according to claim 1, wherein the method comprises the following steps: the drying temperature in the step (3) is 110-120 ℃.
5. The method for preparing polygonum multiflorum tea according to claim 1, wherein the method comprises the following steps: the natural fermentation temperature in the step (3) is 35-37 ℃.
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| CN103652168A (en) * | 2013-11-25 | 2014-03-26 | 三穗县宏远农业开发有限责任公司 | Preparation method of polygonum multiflorum black tea |
| CN103999956A (en) * | 2014-04-02 | 2014-08-27 | 黄山紫霞茶业有限公司 | Processing process of green tea capable of being brewed by cold water |
| JP2016168026A (en) * | 2015-03-13 | 2016-09-23 | ザ コカ・コーラ カンパニーThe Coca‐Cola Company | Method of producing fermented tea leaves |
| CN107467266A (en) * | 2017-08-25 | 2017-12-15 | 贵州安顺春来茶业有限公司 | A kind of preparation method of black tea |
| CN107494793A (en) * | 2017-09-29 | 2017-12-22 | 贵州省石阡正岩苔生态茶业有限公司 | A kind of processing method of black tea |
| CN107535653A (en) * | 2017-09-28 | 2018-01-05 | 贵州曾宇农业开发有限公司 | A kind of preparation method of Multiflower knotweed tuber tea |
| CN109730168A (en) * | 2019-02-20 | 2019-05-10 | 云南昌宁红茶业集团有限公司 | Green tea removes the drying means of moisture content by distilling from vacuum freezing |
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2019
- 2019-12-12 CN CN201911271791.0A patent/CN110754554A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103652168A (en) * | 2013-11-25 | 2014-03-26 | 三穗县宏远农业开发有限责任公司 | Preparation method of polygonum multiflorum black tea |
| CN103999956A (en) * | 2014-04-02 | 2014-08-27 | 黄山紫霞茶业有限公司 | Processing process of green tea capable of being brewed by cold water |
| JP2016168026A (en) * | 2015-03-13 | 2016-09-23 | ザ コカ・コーラ カンパニーThe Coca‐Cola Company | Method of producing fermented tea leaves |
| CN107467266A (en) * | 2017-08-25 | 2017-12-15 | 贵州安顺春来茶业有限公司 | A kind of preparation method of black tea |
| CN107535653A (en) * | 2017-09-28 | 2018-01-05 | 贵州曾宇农业开发有限公司 | A kind of preparation method of Multiflower knotweed tuber tea |
| CN107494793A (en) * | 2017-09-29 | 2017-12-22 | 贵州省石阡正岩苔生态茶业有限公司 | A kind of processing method of black tea |
| CN109730168A (en) * | 2019-02-20 | 2019-05-10 | 云南昌宁红茶业集团有限公司 | Green tea removes the drying means of moisture content by distilling from vacuum freezing |
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Application publication date: 20200207 |