CN118140988A - Method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in green tea process - Google Patents
Method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in green tea process Download PDFInfo
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- CN118140988A CN118140988A CN202211561070.5A CN202211561070A CN118140988A CN 118140988 A CN118140988 A CN 118140988A CN 202211561070 A CN202211561070 A CN 202211561070A CN 118140988 A CN118140988 A CN 118140988A
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- 244000269722 Thea sinensis Species 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 31
- 235000009569 green tea Nutrition 0.000 title claims abstract description 26
- 238000005286 illumination Methods 0.000 title claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 38
- 239000000126 substance Substances 0.000 claims abstract description 36
- 235000013616 tea Nutrition 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 18
- 102000004190 Enzymes Human genes 0.000 claims abstract description 17
- 108090000790 Enzymes Proteins 0.000 claims abstract description 17
- 230000029553 photosynthesis Effects 0.000 claims abstract description 12
- 238000010672 photosynthesis Methods 0.000 claims abstract description 12
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 11
- 125000003118 aryl group Chemical group 0.000 claims abstract description 7
- 150000008442 polyphenolic compounds Chemical class 0.000 claims abstract description 7
- 235000013824 polyphenols Nutrition 0.000 claims abstract description 7
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 7
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 7
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 7
- 210000004027 cell Anatomy 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 210000001519 tissue Anatomy 0.000 claims description 15
- 150000001720 carbohydrates Chemical class 0.000 claims description 9
- 210000003763 chloroplast Anatomy 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 235000005487 catechin Nutrition 0.000 claims description 5
- 150000001765 catechin Chemical class 0.000 claims description 5
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 claims description 5
- 210000000170 cell membrane Anatomy 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 210000003722 extracellular fluid Anatomy 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 230000000243 photosynthetic effect Effects 0.000 claims description 5
- 235000018102 proteins Nutrition 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention discloses a method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in a green tea process, which comprises the following steps: (1) Spreading fresh leaves picked in the morning in a room with constant temperature and humidity, and placing the batch of raw materials in a constant temperature and humidity sunlight room at the temperature of 20+/-1 ℃ and the humidity of 56+/-2% for 30-60 min when the fresh leaves are 16 days; (2) And (3) placing the remaining fresh She Dengdao times of the day in a constant temperature and humidity sunlight room after 7 times of the morning, and repeating the operation method of the step (1). The invention replaces the commonly used house for spreading out the green tea with the sunlight house capable of lighting, uses two mechanisms of respiration and photosynthesis of plants to promote the water content of fresh leaf raw materials to be effectively dissipated in a bidirectional way, leads the proper decomposition of tea polyphenols, proteins and aromatic substances in the fresh leaf to be conducted through the activity regulation and control of various enzymes under the constant temperature condition, retains more low molecular substance components which are suitable for soaking, and improves the special quality and the content of the tea after the product.
Description
Technical Field
The invention relates to a green tea spreading method, in particular to a spreading method integrating constant temperature, constant humidity and moderate illumination in a green tea process.
Background
The tea leaf spreading is a primary link in green tea processing, and in the process of spreading the green tea, fresh tea leaves loose part of water, so that leaf quality is softened, plasticity is increased, leaf color is darkened, green grass gas is gradually converted into faint scent, characteristic and easy-to-soak micromolecular substances with fragrance are cultivated, the later processing of the fresh tea leaves is facilitated, and the preparation of the tea is made for the inner quality leaching exposure.
The traditional spreading method comprises the following steps: after picking the fresh leaves, placing the fresh leaves in a room, spreading the fresh leaves by using tools such as bamboo bamboo mat, a thin bamboo strip basket and the like, wherein the room is required to be clean, air circulation, yin and cool, the spreading thickness is determined by the tenderness of fresh leaves, the top grade fresh leaves are She Yibao, the low grade fresh leaves are slightly thicker, and the thickness is generally not more than 10cm, so that the fresh leaves with rain and dew are required to be spread in a thin way; the spreading time is respectively treated according to fresh leaf raw materials, the water attached to the fresh leaves is more and longer, 8 to 10 hours are needed, the fresh leaves are spread for 4 to 6 hours according to the temperature, and in the period, in order to ensure that the water loss of the fresh leaves is uniform, the fresh leaves are slightly turned over for 1.5 to 2 hours generally, and the fresh leaves are not damaged to cause red change during operation. However, in the traditional spreading method, because the indoor temperature and humidity can change, and the indoor tea leaves are not illuminated, the purposes of balanced and rapid surface water loss in the tea raw materials, fresh and alive leaf surface color and luster, and rich and high-quality conversion of the contained components can not be realized.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is: the method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in the green tea process is provided.
In order to solve the problems, the technical solution of the invention is as follows: a method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in the green tea process comprises the following steps:
(1) Spreading fresh leaves picked in the morning in a room with constant temperature and humidity, and placing the batch of raw materials in a constant temperature and humidity sunlight room at the temperature of 20+/-1 ℃ and the humidity of 56+/-2% for 30-60 min when the fresh leaves are 16 days;
(2) The rest fresh She Dengdao times of the day are placed in a constant temperature and humidity sunlight room after 7 times of the morning, the temperature is set to be 20+/-1 ℃, the humidity is 56+/-2%, the illuminance is 6500-8500 LUX, and the time is 30-60 min.
Further, intelligent constant temperature and humidity equipment is arranged in the sunlight room, and the activities of various enzymes in tissue cells of fresh leaf raw materials are regulated and controlled under constant temperature conditions, so that various substances in the fresh leaf raw materials slowly and orderly change under the catalysis of the enzymes, including chemical changes or decomposition of tea polyphenols, catechins, proteins, saccharides, aromatic substances and the like, so that high molecular substances in the cells are converted into low molecular substances, the low molecular substances are easier to dialyze into interstitial fluid through cell membranes and cell walls, and the extract content of tea products is improved when the tea products are brewed; meanwhile, the self respiration intensity of the fresh leaf raw material can be regulated and controlled, so that CO 2, water vapor and energy can be released linearly and stably, and the total consumption of sugar substances is reduced.
Further, the intelligent constant temperature and humidity equipment timely discharges CO 2 and water vapor released by fresh leaves in indoor air out of the room through the dehumidifying unit, and air circulation is always carried out under set humidity, so that CO 2 and water vapor are effectively restrained from carrying out moisture absorption on the surfaces of fresh leaf raw materials, and the freshness of the fresh leaf raw materials is affected.
Furthermore, the fresh leaves can still carry out photosynthesis under the illumination of 6500-8500 LUX, and the activity of photosynthetic enzymes in cells can be reasonably regulated and controlled in a constant temperature and humidity sunlight room, so that the photosynthesis that chloroplasts are opened more moderately is promoted, the sugar content in leaf tissues can be properly increased, and oxygen can be supplemented into fluid in the tissues to keep the freshness of leaf colors.
The beneficial effects of the invention are as follows: the common house for spreading the green is replaced by a sunlight house capable of collecting light, intelligent constant temperature and constant humidity equipment is arranged in the sunlight house, two mechanisms of plant respiration and photosynthesis are applied to promote the water of fresh leaf raw materials to be effectively dissipated in a bidirectional mode, meanwhile, the proper decomposition of tea polyphenols, proteins and aromatic substances in the fresh leaves is guided through the activity regulation and control of various enzymes under the constant temperature condition, more low-molecular substance components suitable for soaking are reserved, and the special quality and the content of the tea leaves after the product are improved.
Detailed Description
For a more visual and complete understanding of the technical solution of the invention, non-limiting characteristics are now described as follows:
Embodiment one:
A method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in the green tea process comprises the following steps:
(1) Spreading fresh leaves picked in the morning in a room with constant temperature and humidity, and placing the batch of raw materials in a constant temperature and humidity sunlight room at the temperature of 19 ℃ and the humidity of 54% and the illuminance of 6500LUX for 60min when the fresh leaves are 16 days;
(2) The rest fresh She Dengdao times of the day are placed in a constant temperature and humidity sunlight room after 7 times of the morning, the temperature is set at 19 ℃, the humidity is 54%, the illuminance is 6500LUX, and the time is 60 minutes.
The intelligent constant temperature and humidity equipment is arranged in the sunlight room, and the activities of various enzymes in tissue cells of fresh leaf raw materials are regulated and controlled under the constant temperature condition, so that various substances in the fresh leaf raw materials slowly and orderly change under the catalysis of the enzymes, including chemical changes or decomposition of tea polyphenols, catechins, proteins, saccharides, aromatic substances and the like, so that high molecular substances in the cells are converted into low molecular substances, the low molecular substances are easier to dialyze into interstitial fluid through cell membranes and cell walls, and the extract content of tea products is improved when the tea products are brewed; meanwhile, the self respiration intensity of the fresh leaf raw material can be regulated and controlled, so that CO 2, water vapor and energy can be released linearly and stably, and the total saccharide decomposition consumption is reduced.
The intelligent constant temperature and humidity equipment timely discharges CO 2 and water vapor released by fresh leaves in indoor air out of the room through the dehumidifier unit, and always circulates air under set humidity, so that CO 2 and water vapor are effectively prevented from absorbing moisture on the surfaces of fresh leaf raw materials, and the fresh activity and the color of the fresh leaf raw materials are affected. CO 2 is discharged through the dehumidifying function, so that the phenomenon that the indoor humidity is too high and is self-absorbed by tea leaves to generate water smoky taste on quality is prevented, and the fresh leaves wither too fast and influence the fresh activity of the leaf color of the raw materials when the humidity is too low is prevented.
Fresh leaves are generally subjected to photosynthesis under the light intensity of 6500LUX, and the activity of photosynthetic enzymes in cells of the fresh leaves can be reasonably regulated and controlled in a constant temperature and humidity sunlight room, so that the photosynthesis that chloroplasts are opened more moderately is promoted, the sugar content in leaf tissues can be properly increased, and oxygen can be supplemented into fluid in the tissues to keep the freshness of leaf colors.
Embodiment two:
A method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in the green tea process comprises the following steps:
(1) Spreading fresh leaves picked in the morning in a room with constant temperature and humidity, and placing the batch of raw materials in a constant temperature and humidity sunlight room at the temperature of 21 ℃ and the humidity of 58% and the illuminance of 8500LUX for 30min when the fresh leaves are 16 days;
(2) The rest fresh She Dengdao times of the day are placed in a constant temperature and humidity sunlight room after 7 times of the morning, the temperature is set at 21 ℃, the humidity is 58%, the illuminance is 8500LUX, and the time is 30min.
The intelligent constant temperature and humidity equipment is arranged in the sunlight room, and the activities of various enzymes in tissue cells of fresh leaf raw materials are regulated and controlled under the constant temperature condition, so that various substances in the fresh leaf raw materials slowly and orderly change under the catalysis of the enzymes, including chemical changes or decomposition of tea polyphenols, catechins, proteins, saccharides, aromatic substances and the like, so that high molecular substances in the cells are converted into low molecular substances, the low molecular substances are easier to dialyze into interstitial fluid through cell membranes and cell walls, and the extract content of tea products is improved when the tea products are brewed; meanwhile, the self respiration intensity of the fresh leaf raw material can be regulated and controlled, so that CO 2, water vapor and energy can be released linearly and stably, and the total saccharide decomposition consumption is reduced.
The intelligent constant temperature and humidity equipment timely discharges CO 2 and water vapor released by fresh leaves in indoor air out of the room through the dehumidifier unit, and always circulates air under set humidity, so that CO 2 and water vapor are effectively prevented from absorbing moisture on the surfaces of fresh leaf raw materials, and the fresh activity and the color of the fresh leaf raw materials are affected. CO 2 is discharged through the dehumidifying function, so that the phenomenon that the indoor humidity is too high and is self-absorbed by tea leaves to generate water smoky taste on quality is prevented, and the fresh leaves wither too fast and influence the fresh activity of the leaf color of the raw materials when the humidity is too low is prevented.
Fresh leaves are generally subjected to photosynthesis under the illumination intensity of 8500LUX, and the activity of photosynthetic enzymes in cells of the fresh leaves can be reasonably regulated and controlled in a constant temperature and humidity sunlight room, so that the chloroplast can promote the photosynthesis that the chloroplast is opened and relaxed, the sugar content in leaf tissues can be properly increased, and oxygen can be supplemented into fluid in the tissues to keep the freshness of leaf colors.
Example III
A method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in the green tea process comprises the following steps:
(1) Spreading fresh leaves picked in the morning in a room with constant temperature and humidity, and placing the batch of raw materials in a constant temperature and humidity sunlight room at the temperature of 20 ℃ and the humidity of 56% and the illuminance of 7500LUX for 45min when the fresh leaves are 16 days;
(2) The rest fresh She Dengdao times of the day are placed in a constant temperature and humidity sunlight room after 7 times of the morning, the temperature is set at 20 ℃, the humidity is 56%, the illuminance is 7500LUX, and the time is 45 minutes.
The intelligent constant temperature and humidity equipment is arranged in the sunlight room, and the activities of various enzymes in tissue cells of fresh leaf raw materials are regulated and controlled under the constant temperature condition, so that various substances in the fresh leaf raw materials slowly and orderly change under the catalysis of the enzymes, including chemical changes or decomposition of tea polyphenols, catechins, proteins, saccharides, aromatic substances and the like, so that high molecular substances in the cells are converted into low molecular substances, the low molecular substances are easier to dialyze into interstitial fluid through cell membranes and cell walls, and the extract content of tea products is improved when the tea products are brewed; meanwhile, the self respiration intensity of the fresh leaf raw material can be regulated and controlled, so that CO 2, water vapor and energy can be released linearly and stably, and the total saccharide decomposition consumption is reduced.
The intelligent constant temperature and humidity equipment timely discharges CO 2 and water vapor released by fresh leaves in indoor air out of the room through the dehumidifier unit, and always circulates air under set humidity, so that CO 2 and water vapor are effectively prevented from absorbing moisture on the surfaces of fresh leaf raw materials, and the fresh activity and the color of the fresh leaf raw materials are affected. CO 2 is discharged through the dehumidifying function, so that the phenomenon that the indoor humidity is too high and is self-absorbed by tea leaves to generate water smoky taste on quality is prevented, and the fresh leaves wither too fast and influence the fresh activity of the leaf color of the raw materials when the humidity is too low is prevented.
Fresh leaves are generally subjected to photosynthesis under the illumination intensity of 7500LUX, and the activity of photosynthetic enzymes in cells of the fresh leaves can be reasonably regulated and controlled in a constant temperature and humidity sunlight room, so that the chloroplast can start the photosynthesis more moderately, the sugar content in leaf tissues can be properly increased, and oxygen can be supplemented into fluid in the tissues to keep the leaf color freshness.
Claims (4)
1. A method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in a green tea process is characterized by comprising the following steps:
(1) Spreading fresh leaves picked in the morning in a room with constant temperature and humidity, and placing the batch of raw materials in a constant temperature and humidity sunlight room at the temperature of 20+/-1 ℃ and the humidity of 56+/-2% for 30-60 min when the fresh leaves are 16 days;
(2) The rest fresh She Dengdao times of the day are placed in a constant temperature and humidity sunlight room after 7 times of the morning, the temperature is set to be 20+/-1 ℃, the humidity is 56+/-2%, the illuminance is 6500-8500 LUX, and the time is 30-60 min.
2. The method for spreading green tea leaves under constant temperature, constant humidity and moderate light according to claim 1, wherein the method comprises the following steps: the intelligent constant temperature and humidity equipment is arranged in the sunlight room, and the activities of various enzymes in tissue cells of fresh leaf raw materials are regulated and controlled under the constant temperature condition, so that various substances in the fresh leaf raw materials slowly and orderly change under the catalysis of the enzymes, including chemical changes or decomposition of tea polyphenols, catechins, proteins, saccharides, aromatic substances and the like, so that high molecular substances in the cells are converted into low molecular substances, the low molecular substances are easier to dialyze into interstitial fluid through cell membranes and cell walls, and the extract content of tea products is improved when the tea products are brewed; meanwhile, the self respiration intensity of the fresh leaf raw material can be regulated and controlled, so that CO 2, water vapor and energy can be released linearly and stably, and the total saccharide decomposition consumption is reduced.
3. The method for spreading green tea leaves under constant temperature, constant humidity and moderate light according to claim 2, wherein the method comprises the following steps: the intelligent constant temperature and humidity equipment timely discharges CO 2 and water vapor released by fresh leaves in indoor air out of the room through the dehumidifier unit, and air circulation is always carried out under set humidity, so that CO 2 and water vapor are effectively restrained from carrying out moisture absorption on the surfaces of fresh leaf raw materials, and the freshness of the fresh leaf raw materials is affected.
4. The method for spreading green tea leaves under constant temperature, constant humidity and moderate light according to claim 1, wherein the method comprises the following steps: the fresh leaves can still carry out photosynthesis under the illumination of 6500-8500 LUX, and the activity of the photosynthetic enzyme in the cells can be reasonably regulated and controlled in a constant temperature and humidity sunlight room, so that the photosynthesis that chloroplasts are opened relatively slowly is promoted, the sugar content in leaf tissues can be properly increased, and oxygen can be supplemented into tissue fluid to keep the freshness of leaf colors.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211561070.5A CN118140988A (en) | 2022-12-07 | 2022-12-07 | Method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in green tea process |
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| CN202211561070.5A CN118140988A (en) | 2022-12-07 | 2022-12-07 | Method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in green tea process |
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| CN202211561070.5A Pending CN118140988A (en) | 2022-12-07 | 2022-12-07 | Method for spreading green tea by integrating constant temperature, constant humidity and moderate illumination in green tea process |
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| CN (1) | CN118140988A (en) |
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