CN101536651A - Method for improving aromatic substance content of summer tea - Google Patents
Method for improving aromatic substance content of summer tea Download PDFInfo
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- CN101536651A CN101536651A CN200910039058A CN200910039058A CN101536651A CN 101536651 A CN101536651 A CN 101536651A CN 200910039058 A CN200910039058 A CN 200910039058A CN 200910039058 A CN200910039058 A CN 200910039058A CN 101536651 A CN101536651 A CN 101536651A
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Abstract
The invention relates to a method for improving the aromatic substance content of summer tea by utilizing drought stress. The method for improving the aromatic substance content of the tea has obvious action on the improvement of the aromatic substance content of fresh leave raw materials of the prior tea and the value of the finished tea. The invention has the advantages of simple method and low production cost without chemical pollution existing in the treated tea and has natural quality of the tea.
Description
Technical field
The present invention relates to a kind of method that improves aromatic substance content in the summer tea.
Background technology
Under summer high light, high temperature, super-humid conditions, growth of tea plant vigorous, material pained highly seasoned in the bright leaf inclusion of tea is more, the content of cellulose height, aromatic substance and pure and mild flavor material are less, and quality is descended, and processing Oolong tea, green tea quality are relatively poor, production unit is adopted less and is not even adopted summer tea, has had a strong impact on the economic benefit in tea place.Be from the Crop Physiology aspect on the one hand to improving the summer tea Study on Quality at present, it mainly is the normal growth growth that the research favourable circumstance helps tea tree, be beneficial to the formation of tealeaves effective ingredient such as materials such as amino acid, Polyphenols, particularly the flavour composition is more favourable to tea leaf quality, therefore, normally help the normal growth growth of tea tree, be beneficial to the formation of tealeaves effective ingredient such as materials such as amino acid, Polyphenols by the improvement environment; Be on the other hand from summer raw material improve the summer tea quality from the research of processing technology aspect, therefore, though technology can be improved the summer tea flavour to a certain extent now, improve tea leaf quality, but the low light never improvement of aroma of summer tea, and fragrance is determined by aromatic substance content in the tealeaves.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, and purpose is to provide a kind of easy to implement, method that advantages of simplicity and high efficiency improves aromatic substance content in the summer tea, can obviously improve the fragrance of summer tea.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of method that improves aromatic substance content in the summer tea is to utilize drought stress to improve the content of aromatic substance in the summer tea.A kind of method that improves aromatic substance content in the summer tea of more specifically saying so is before summer tea is plucked, and tea tree is carried out 8～10 days drought stress, plucks then, is processed into tealeaves.
Method of the present invention is when summer, tea tree young sprout length was to 1 bud, 2,3 leaves to the best period that tealeaves carries out drought stress; Described summer, the tea tree young sprout was the young sprout of annual 5～8 months growth of tea plant.
The method of described drought stress is to set up the waterproof frame around tealeaves; The frame that preferred bamboo wood of described frame or reinforcing bar are made; Also can be coated with white agricultural film on the described frame; Also can add a cover light transmittance on the described agricultural film and be 60～80% sunshade net; Should keep around the described frame ventilating to reduce temperature.
Can offer drainage ditch around the described frame,, further consolidate the drought stress effect in order to get rid of rainwater.
Method of the present invention can more specifically be expressed as: during the exhibition just of tender shoot elongation to 1 bud 2,3 leaves of tealeaves, it is high 2 meters to build canopy with bamboo wood, long 50 meters, wide 4.5 meters ceiling arch facility structures, every canopy covers the triplex row tea tree, and lid agricultural film, the sunshade net of light transmittance 60% is added a cover on the film upper strata, ventilates around the canopy to reduce temperature, is in the drought stress state of appropriateness through making tea tree 8-10 days periods, adopt down the tender tip of 1 bud, 2 leaves then as raw material, be processed into tealeaves by the common tea processing method.
Compared with prior art, the present invention has following beneficial effect:
Innovative point of the present invention is the fragrant high strong reason of particular surroundings formation autumn tea according to the autumn and winter season drought stress, by control tea place moisture in summer, make tea tree in following a period of time of condition that appropriate drought is coerced, induce the formation and the accumulation of tea tree aromatic substance, improve the relevant degrading enzymatic activity of aromatic substance precursor substance simultaneously, thereby quicken the degraded of aromatic substance precursor, form more abundant free state aromatic substance, improve the kind and the concentration of aromatic substance in the tealeaves, finally improve tea aroma.
The present invention improves the method for tea aromatic substance content, is applicable to that the fresh leaves of tea plant of planting any kind Anywhere is a raw material, as black tea, green tea, Oolong tea etc., has wide range of applications.
The present invention improves the method for aromatic substance content in the tealeaves, for aromatic substance content that improves existing fresh tea leaf raw material and finished tea value obvious effect is arranged, inventive method is simple, and production cost is low, there is not chemical contamination in tealeaves after the processing, has the natural quality characteristics of tealeaves.
Embodiment
Below further specify technical scheme of the present invention by specific embodiment.Among the embodiment in all forms all the comparative test result with the same breed raw material be that 100% result calculated percentage is represented.
Embodiment 1
Selecting " No. six, good fortune cloud " tea tree breed tea place for use is object, carries out as follows:
(1) when summer, tea tree young sprout length was to 1 bud, 2,3 leaves, in the tea place, build frame, adopt the cement pillar, the ceiling arch, ceiling frame bone bamboo wood or bar construction, the high 1m-2m of canopy, long 30m-50m, wide 4.5m-9m, every canopy covers the above tea tree of triplex row;
(2) ditch that begins to rehearse around the frame, the specification in drain ditch is more than the 15cm deeply, the about 20cm of width links to each other with outer drain ditch, outwards gets rid of rainwater;
(3) frame adopts white agricultural film to cover and fixes with thin wire, enters tea place moisture to prevent rainwater;
(4) add a cover the sunshade net of light transmittance 60-80% and fix on the agricultural film upper strata, keep around the canopy ventilating to reduce temperature with thin wire;
(5) tea tree crosses 8-10 days water stress at the canopy back warp, adopts the bright leaf of 1 bud, 2 leaves then as processing raw material; Because " No. six, good fortune cloud " suitable system green tea kind, according to common Green Tea Processing technology----complete-knead-drying and other steps is processed into green tea.
In order to prove that the present invention is to improving the effect of summer tea fragrance, with natural tea place serves as that contrast is for processing raw material, and do following processing: every 3 days, water spray once at dusk, to keep tea garden soil moisture, according to said method the tealeaves of gained is called control group, compares with the tealeaves of producing when the autumn in nature tea place simultaneously.
The tealeaves that above-mentioned three kinds of tea tree raw materials are made by identical processing technology carries out sensory review's scoring, and analyzes the content of the main aromatic substance of tealeaves with gas chromatography mass spectrometry (GC-MS), and specifically data are as shown in table 1:
The scoring of the different sample green tea of table 1 fragrance component and main aromatic substance content be * relatively
| Sample | The fragrance sensory evaluation scores | Benzyl carbinol | Phenylacetaldehyde | Nerolidol | Geraniol | Linalool | Linalool oxide (I, II, III) |
| Embodiment 1 | 118 | 126 | 121 | 118 | 116 | 133 | 128 |
| Autumn tea then | 121 | 128 | 120 | 119 | 115 | 135 | 127 |
| Contrast | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
The result of calculation of table 1 shows that the tea aroma sensory evaluation scores comparison of adopting the present invention to obtain is shone and improved 18%, only than autumn tea low 3%; The total concentration comparison of fragrance component is according to improving 23.6%, near autumn tea (24%) level.
Embodiment 2
With Taiwan " Jin Xuan " replacement " No. six, good fortune cloud " kind, all the other all are equal to example 1.
The tealeaves that three kinds of tea tree raw materials are made by identical processing technology carries out sensory review's scoring, and analyzes the content of the main aromatic substance of tealeaves with gas chromatography mass spectrometry (GC-MS), and specifically data are as shown in table 2.
The scoring of the different sample green tea of table 2 fragrance component and main aromatic substance content be * relatively
| Sample | The fragrance sensory evaluation scores | Benzyl carbinol | Phenylacetaldehyde | Nerolidol | Geraniol | Linalool | Linalool oxide (I, II, III) |
| The present invention | 122 | 128 | 124 | 121 | 118 | 137 | 130 |
| Autumn tea then | 124 | 129 | 126 | 122 | 118 | 138 | 131 |
| Contrast | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
The result of calculation of table 2 shows that the tea aroma sensory evaluation scores comparison of adopting the present invention to obtain is shone and improved 22%, only than autumn tea low 2%; The total concentration comparison of fragrance component is according to improving 26.33%, near autumn tea (27.33%) level.
Embodiment 3
Selecting " Jin Xuan " tea tree breed tea place for use is object, carries out as follows:
(1) when summer, tea tree young sprout length was to 1 bud, 3,4 leaves, in the tea place, build frame, adopt the cement pillar, the ceiling arch, ceiling frame bone bamboo wood or bar construction, the high 1m-2m of canopy, long 30m-50m, wide 4.5m-9m, every canopy covers the above tea tree of triplex row;
(2) ditch that begins to rehearse around the frame, the specification in drain ditch be more than the 15cm deeply, the about 20cm of width, rainwater is outwards got rid of by the company that links to each other with outer drain ditch;
(3) frame adopts white agricultural film to cover and fixes with thin wire, enters tea place moisture to prevent rainwater;
(4) add a cover the sunshade net of light transmittance 60-80% and fix on the agricultural film upper strata, keep around the canopy ventilating to reduce temperature with thin wire;
(5) tea tree crosses 8-10 days water stress at the canopy back warp, adopts the bright leaf of 1 bud, 3 leaves then as processing raw material; Because " Jin Xuan " suitable system oolong tea kind, spread-do green grass or young crops-complete-knead-rolling-drying and other steps according to the processing technology of common Oolong tea----and be processed into Oolong tea.
In order to prove that the present invention is to improving the effect of summer tea fragrance, with natural tea place serves as that contrast is for processing raw material, and do following processing: every 3 days, water spray once at dusk, to keep tea garden soil moisture, according to said method the tealeaves of gained is called control group, compares with the tealeaves of producing when the autumn in nature tea place simultaneously.
The tealeaves that above-mentioned three kinds of tea tree raw materials are made by identical processing technology carries out sensory review's scoring, and analyzes the content of the main aromatic substance of tealeaves with gas chromatography mass spectrometry (GC-MS), and specifically data are as shown in table 3.
The scoring of the different sample Oolong tea of table 3 fragrance component and main aromatic substance content be * relatively
| Sample | The fragrance sensory evaluation scores | Benzyl carbinol | Phenylacetaldehyde | Nerolidol | Geraniol | Linalool | Linalool oxide (I, II, III) |
| The present invention | 119 | 121 | 122 | 126 | 120 | 132 | 128 |
| Autumn tea then | 120 | 120 | 123 | 127 | 121 | 133 | 130 |
| Contrast | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
The result of calculation of table 3 shows that the tea aroma sensory evaluation scores comparison of adopting the present invention to obtain is shone and improved 19%, only than autumn tea low 1%; The total concentration comparison of fragrance component is according to improving 24.8%, relatively near autumn tea (25.7%) level.
Embodiment 4
With " Bai Yedan fir " replacement " Jin Xuan " kind, all the other all are equal to example 3.
The tealeaves that three kinds of tea tree raw materials are made by identical processing technology carries out sensory review's scoring, and analyzes the content of the main aromatic substance of tealeaves with gas chromatography mass spectrometry (GC-MS), and specifically data are as shown in table 4.
The scoring of the different sample Oolong tea of table 4 fragrance component and main aromatic substance content be * relatively
| Sample | The fragrance sensory evaluation scores | Benzyl carbinol | Phenylacetaldehyde | Nerolidol | Geraniol | Linalool | Linalool oxide (I, II, III) |
| The present invention | 124 | 119 | 122 | 126 | 120 | 127 | 136 |
| Autumn tea then | 126 | 121 | 123 | 128 | 123 | 128 | 138 |
| Contrast | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
The result of calculation of table 4 shows that the tea aroma sensory evaluation scores comparison of adopting the present invention to obtain is shone and improved 24%, only than autumn tea low 2%; The total concentration comparison of fragrance component is according to improving 25%, relatively near autumn tea (26.8%) level.
Embodiment 5
Selecting " big-leaf species in yunnan " tea tree breed tea place for use is object, carries out as follows:
(1) when summer, tea tree young sprout length was to 1 bud, 2,3 leaves, in the tea place, build frame, adopt the cement pillar, the ceiling arch, ceiling frame bone bamboo wood or bar construction, the high 1m-2m of canopy, long 30m-50m, wide 4.5m-9m, every canopy covers the above tea tree of triplex row;
(2) ditch that begins to rehearse around the frame, the specification in drain ditch is more than the 15cm deeply, the about 20cm of width links to each other with outer drain ditch, outwards gets rid of rainwater;
(3) frame adopts white agricultural film to cover and fixes with thin wire, enters tea place moisture to prevent rainwater;
(4) add a cover the sunshade net of light transmittance 60-80% and fix on the agricultural film upper strata, keep around the canopy ventilating to reduce temperature with thin wire;
(5) tea tree crosses 8-10 days water stress at the canopy back warp, adopts the bright leaf of 1 bud, 2 leaves then as processing raw material, because " big-leaf species in yunnan " suitable system black tea veriety, according to the processing technology of common black tea----withering---knead-and drying and other steps is processed into black tea.
In order to prove that the present invention is to improving the effect of summer tea fragrance, with natural tea place serves as that contrast is for processing raw material, and do following processing: every 3 days, water spray once at dusk, to keep tea garden soil moisture, according to said method the tealeaves of gained is called control group, compares with the tealeaves of producing when the autumn in nature tea place simultaneously.
The tealeaves that above-mentioned three kinds of tea tree raw materials are made by identical processing technology carries out sensory review's scoring, and analyzes the content of the main aromatic substance of tealeaves with gas chromatography mass spectrometry (GC-MS), and specifically data are as shown in table 5:
The scoring of the different sample black tea of table 5 fragrance component and main aromatic substance content be * relatively
| Sample | The fragrance sensory evaluation scores | Benzyl carbinol | Phenylacetaldehyde | Nerolidol | Geraniol | Linalool | Linalool oxide (I, II, III) |
| The present invention | 116 | 118 | 114 | 122 | 128 | 127 | 128 |
| Autumn tea then | 118 | 119 | 116 | 124 | 128 | 128 | 129 |
| Contrast | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
The result of calculation of table 5 shows that the tea aroma sensory evaluation scores comparison of adopting the present invention to obtain is shone and improved 16%, only than autumn tea low 2%; The total concentration comparison of fragrance component is according to improving 22.8%, relatively near autumn tea (24%) level.
Also be noted that at last; what more than lift row is several instantiations of the present invention; obviously the invention is not restricted to above several examples; all right many distortion; those of ordinary skill in the art can directly derive many distortion of associating from many contents disclosed by the invention, all should think protection scope of the present invention.
Claims (8)
1. a method that improves aromatic substance content in the summer tea is characterized in that utilizing drought stress to improve the content of aromatic substance in the summer tea.
2. the method for claim 1 is characterized in that before summer tea is plucked, and tea tree is carried out 8～10 days drought stress, plucks then, is processed into tealeaves.
3. method as claimed in claim 2 is characterized in that described is when summer, tea tree young sprout length was to 1 bud, 2,3 leaves before summer tea is plucked.
4. method as claimed in claim 2, the method that it is characterized in that described drought stress are to set up the waterproof frame around tealeaves.
5. method as claimed in claim 4 is characterized in that described frame is the frame that bamboo wood or reinforcing bar are made.
6. as claim 4 or 5 described methods, it is characterized in that also being coated with on the described frame white agricultural film.
7. method as claimed in claim 6 is characterized in that also adding a cover on the described agricultural film light transmittance and is 60～80% sunshade net.
8. method as claimed in claim 7 is characterized in that offering drainage ditch around the described frame.
Priority Applications (1)
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| CN200910039058A CN101536651A (en) | 2009-04-28 | 2009-04-28 | Method for improving aromatic substance content of summer tea |
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| CN200910039058A CN101536651A (en) | 2009-04-28 | 2009-04-28 | Method for improving aromatic substance content of summer tea |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785405B (en) * | 2009-12-29 | 2012-01-04 | 华南农业大学 | Method and accelerator for improving aroma of summer tea and preparation method thereof |
| CN102669310A (en) * | 2011-03-10 | 2012-09-19 | 常州市现代农业科学院茶业研究所 | Production method of albino tea with ultrahigh content of gamma-aminobutyric acid |
| CN105706758A (en) * | 2016-02-29 | 2016-06-29 | 福建省农业科学院土壤肥料研究所 | Method for improving yield and quality of tea by means of adjusting illumination intensity |
| CN107409797A (en) * | 2017-05-17 | 2017-12-01 | 张松波 | Preparation method rich in tea-polyphenol tea |
| WO2023179290A1 (en) * | 2022-03-21 | 2023-09-28 | 广东省农业科学院茶叶研究所 | Method for improving quality of tea leaf raw materials by tree abiotic stress |
-
2009
- 2009-04-28 CN CN200910039058A patent/CN101536651A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785405B (en) * | 2009-12-29 | 2012-01-04 | 华南农业大学 | Method and accelerator for improving aroma of summer tea and preparation method thereof |
| CN102669310A (en) * | 2011-03-10 | 2012-09-19 | 常州市现代农业科学院茶业研究所 | Production method of albino tea with ultrahigh content of gamma-aminobutyric acid |
| CN102669310B (en) * | 2011-03-10 | 2013-07-10 | 常州市现代农业科学院茶业研究所 | Production method of albino tea with ultrahigh content of gamma-aminobutyric acid |
| CN105706758A (en) * | 2016-02-29 | 2016-06-29 | 福建省农业科学院土壤肥料研究所 | Method for improving yield and quality of tea by means of adjusting illumination intensity |
| CN107409797A (en) * | 2017-05-17 | 2017-12-01 | 张松波 | Preparation method rich in tea-polyphenol tea |
| WO2023179290A1 (en) * | 2022-03-21 | 2023-09-28 | 广东省农业科学院茶叶研究所 | Method for improving quality of tea leaf raw materials by tree abiotic stress |
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Open date: 20090923 |