CN104920699A - Instant black tea extract - Google Patents
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Abstract
The invention discloses an instant black tea extract, which is prepared by the following steps: preparing black tea, adding water, heating to a temperature of 35 to 60 DEG C, extracting, filtering to obtain filtrate, adding water into the filtrate, heating to boil, extracting, filtering, merging the obtained extract, condensing, and drying to obtain the instant black tea extract. The disclosed instant black tea extract has a pure fragrance and unique taste, is very convenient to bring with and eat, and has the characteristics of ecology, science, convenience, and health, the cold solubility is good, and the tea soup is clear and clean.
Description
Technical field
The present invention relates to a kind of instant black tea extract, particularly a kind of instant black tea extract extracted by different temperatures.
Background technology
Containing a large amount of polyphenols in tealeaves, there is hardship, astringent taste and convergence.Can be combined with caffeine and relax the physiological action of Caffeine On Human body in millet paste.Anti-oxidant, the anti-halmatogenesis of tool, antitumor, reduce Blood Cholesterol and low-density ester gp content, suppress blood pressure to rise, the effect such as suppress platelet aggregation, antibacterial, anti-product irritated, as the beverage with health-care efficacy, deeply like by consumer.Tealeaves, according to the difference of manufacture craft and quality characteristic and Tea Polyphenols degree of oxidation, is divided into green tea, yellow tea, black tea, blue or green tea, the large class tea of white tea, black tea etc. six.
Black tea kind comprises large leaf black tea, middle leaflet kind black tea and leaflet kind black tea.Black tea is through and withers, kneads, ferments and the processing technology such as drying and making; Containing abundant Tea Polyphenols in black tea, Tea Polyphenols has the effect of very strong removing human free radical, and research shows that black tea has obvious antioxygenic property, can the naturally-aged of delaying human body.Large leaf black tea is dense and be world-famous for the high taste of distinctive perfume (or spice), it mainly with the big-leaf species in yunnan in region, Yunnan for raw material, its water extraction is higher than middle leaflet kind black tea.
At present, black tea a large amount of on the market occurs with forms such as bar shaped tea, spiral shell shape tea, red fannings and teas in bag, these traditional black tea dissolution rate in passes during brewing differs when causing drinking and affects mouthfeel to a certain extent, and it is comparatively loaded down with trivial details to drink not aspect, program; And the characteristic that the tea powder that market is sold also exists tea aroma flavour is not obvious, cold soluble poor, the problems such as soup look clear and bright is not.In the present invention, black tea is prepared into fragrance pure, the healthy food of mouthfeel uniqueness, is prepared into Powdered Instant black tea extract, to carry with instant and cold soluble good, soup look enough is clear and bright, has ecology, science, convenient, health care 4 large features.
Summary of the invention
For solving the deficiency that prior art exists, the object of the present invention is to provide extract of a kind of black tea and preparation method thereof, described extract has the obvious characteristic of black tea fragrance flavour, and cold soluble good, and soup look clear and bright.
Black tea can be selected from large leaf black tea, middle leaflet kind black tea, leaflet kind black tea any one or multiple combination.
Instant black tea extract of the present invention is prepared by the following step:
(A) get black tea, add water, 35-60 DEG C of extraction, filter, obtain extract I,
(B) add water boiling again to extract, filter, obtain extract II
(C) extract I and extract II is merged, concentrated, be drying to obtain.
Due to a small amount of precipitation owing to producing when being cooled to room temperature or low temperature often can be contained in leaching process; have impact on the clarity of millet paste; in order to make the more bright clarification of the soup look of black tea extract; adopt after suitably being concentrated by extract, the method for carrying out secondary concentration after carrying out first separation precipitation is again improved.Instant black tea extract is prepared by following method:
(A) get black tea, add 5-15 times of water gaging, 35-60 DEG C of extraction, filter, obtain extract I,
(B) add 5-15 times of water gaging again, extract under fluidized state, filter, obtain extract II,
(C) merge extract I and extract II, concentrated, precipitation and separation, concentrates again, is drying to obtain black tea extract.
Step (A), multiple described in step (B) refer to the volume of water and the quality multiple (v/w) of tea, normally L/kg, mL/g, by that analogy.
Further, the number of times of carrying in described step (A) is 2-3 time, each 0.5-1.5h.
During extraction, add water fewer, mean that the concentration of leaching liquor is higher, then subsequent concentration activity time is short; The evaporation capacity of millet paste when concentrated reduces, thus decreases the volatilization of aromatic substance, thus improves millet paste quality; But add water and be unfavorable for active ingredient Rapid Leaching very little, or active ingredient is attached on tea grounds in large quantities, cause rate processed lower.Therefore, the tea-water proportion of the present invention to step (A) and step (B) has carried out further screening, and for ease of comparing, step (A) and step (B) adopt identical tea-water proportion, in table 1.
Table 1. solid-liquid ratio is to the impact analysis of product yield and quality
Therefore, further, each amount adding water of extracting is 5-10 times, is preferably 8-10 doubly.
The product quality feature that different temperature and extracting mode are produced differs, and the extract fragrance aspect that low temperature extracts has raw-material quality characteristic more.The temperature of water raises, then diffusion velocity is accelerated, favourable to acceleration leaching process.Improve extraction temperature, will improve product rate significantly, in addition, Extracting temperature also directly affects the quality of product.Therefore, the present invention has carried out further screening, in table 2 to Extracting temperature
The different Extracting temperature of table 2. is to the impact analysis of product yield and quality
| Extracting temperature (tea-water proportion 1:8) | Yield, % | Quality |
| 30 DEG C of extractions are protected afterwards for 2 times and are boiled | 13.2 | Flavour alcohol and lighter, tea perfume (or spice) is lighter, and soup look slightly muddy |
| 30 DEG C are extracted 3 times | 10.4 | Flavour is gentle lighter, and tea perfume (or spice) is lighter, and soup look muddy |
| 50 DEG C of extractions are protected afterwards for 2 times and are boiled | 22.4 | Flavour is mellow, and tea perfume is aobvious |
| 50 DEG C are extracted 3 times | 17.3 | Flavour alcohol and, tea perfume is aobvious |
| 60 DEG C of extractions are protected afterwards for 2 times and are boiled | 22.8 | Flavour is mellow, and tea perfume (or spice) is lighter, slightly Gao Huoxiang |
| 60 DEG C are extracted 3 times | 20.6 | Flavour is mellow, and tea perfume (or spice) is lighter, slightly Gao Huoxiang |
| 80 DEG C are extracted 3 times | 22.9 | Flavour is mellow, and tea perfume (or spice) is light, and Gao Huoxiang shows |
| Guarantor is boiled extraction 3 times | 24.9 | Flavour is mellow, and tea perfume (or spice) does not show, and Gao Huoxiang shows |
Further, in described step (A), Extracting temperature is 50 DEG C.
Further, protecting extraction time of boiling in described step (B) is 0.5-1.5h.
After tealeaves leaching liquor lets cool, there will be caseiform muddy thing, this phenomenon is called " cream down ", and the milk of this muddiness is called tea cream, and mainly theaflavin, thearubigin form large molecular substance with caffeine complexing at low temperatures.The size of the sediment quality such as tea cream has close contact with temperature, and the sediment such as tea cream has again close ties with the flavour of tea, the clarity of millet paste simultaneously; The existence of tea cream causes the soup look of tea extraction muddy, and the rejecting of tea cream can cause tea extraction flavour thin.Precipitate and separate mode in described step (C) is selected from that tubular type is centrifugal, disk centrifugal, membrane filtration or filter-cloth filtering; Drying mode is selected from drying under reduced pressure, freeze drying, spraying dry or belt drying; Wherein separation temperature is 45 ~ 55 DEG C.In above-mentioned steps (C), the method for precipitation and separation can adopt centrifugal, but centrifuging temperature is too low, and effect and taste composition easily lose in separation process, and centrifuging temperature is too high, can cause the clarity of product soup look bad.The present invention has carried out further screening, in table 3 to centrifuging temperature.
The different centrifuging temperature of table 3 is to the impact analysis of product yield and quality
As further improvement, described step (C) is for merging extract I and extract II, concentrated, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.Its centrifugate is concentrated again.The concentrated solution of gained is dry, obtain black tea extract.
According to the preparation method of a kind of i.e. extract of dissolubility black tea of the present invention, described drying process can select the modes such as drying under reduced pressure, freeze drying, spraying dry or belt drying can realize object of the present invention.
Freeze drying is carry out under low temperature, vacuum state due to its dry run, by being directly gaseous state from solid state sublimation after the moisture quick freezing in material, therefore better can keep perfume (or spice), taste, the nutritional labeling of extract, and dissolubility is good.Can as good drying mode.
Spray drying process one of preferably, its significant advantage is that equipment price is cheap, production efficiency is high, easy and simple to handle, can large-scale production continuously.By setting appropriate parameter, extract fine powder quality can be promoted, promoting solubility property, improve the clarity of soup look, make product possess mouthfeel preferably.
In addition, density and the product of concentrate have substantial connection, and density is too low, and spraying dry speed will be caused slow, and output is few, do not reach that production saves time, labour-saving object, and affect product quality; If concentrated solution density is too high, the viscosity of concentrate is excessively strong, will cause sticky wall in spray-drying process, loses comparatively large and affects product quality.Therefore, the present invention has carried out further screening, in table 4 to the concentration of concentrate before spraying dry.
Table 4. concentrate variable concentrations is to the impact analysis of product yield and quality
Further, step (C) is 1.030-1.035 for merging extract I and extract II, 70 DEG C are concentrated into proportion, and concentrate is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.Its centrifugate being concentrated under 65-75 DEG C of condition proportion is 1.05 ~ 1.12.The concentrated solution of gained is directly sprayed dry, EAT is set to 160-180 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
During spraying dry, import hot blast temperature is too low, and concentrate has dropping liquid phenomenon due to insufficient shower nozzle that causes that is heated; And import hot blast temperature too high time, in feed liquid can there is molten powder color and luster and deepen in material, produces and be charred taste, and heat-sensitive materials decomposes loss, sticks in phenomenons such as shower nozzle places, affect the quality of spray-dired process and instant black tea extract.Import hot blast temperature is larger for the drying impact of instant black tea extract.Therefore, the present invention screens, in table 5 further to the EAT in above-mentioned steps C
Table 5. EAT is to the impact analysis of drying effect
| EAT, DEG C | Drying effect |
| 150 | Be heated insufficient, have dropping liquid phenomenon |
| 160 | Be heated comparatively abundant, have dropping liquid phenomenon once in a while |
| 170 | Be heated fully; Product particle size is even, moderate, and instant capacity is good |
| 180 | Be heated fully, product high-fire taste is heavier |
| 190 | Be heated fully, be charred glutinous wall phenomenon, product high-fire taste weight |
Further, described step C EAT is set to 170 DEG C
In order to improve the quality of black tea extract, meeting the demand of people to instant black tea extract mouthfeel, suitably can also add the sweet substance of 0-10% black tea weight.Sweet substance can be selected from the sweet substance of natural origin and the sweetener of Prof. Du Yucang; As STEVIA REBAUDIANA, Radix Glycyrrhizae, xylitol, glucose etc., preferred STEVIA REBAUDIANA, Radix Glycyrrhizae.Adding Way is: extract add sweet substance in described step (A) black tea after again, or in described step (C) before drying, carries out drying after sweet substance being added concentrate mixing.Described sweet substance is selected from any one or multiple combination in STEVIA REBAUDIANA, Radix Glycyrrhizae, xylitol, glucose.
Detailed description of the invention
To be easier to understand the present invention with reference to the following example, providing embodiment is to illustrate the present invention, instead of in order to limit the scope of the invention.
Embodiment 1
(A) get black tea 100kg, add the water of 5 times, 35 DEG C of constant temperature extract, and extract 2 times, each 0.5h, filter and obtain extract I, and (B) adds 5 times of water gagings again and protect the extraction 0.5h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 160 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 2
(A) get black tea 100kg, add the water of 15 times, 60 DEG C of constant temperature extract, and extract 3 times, each 1.5h, filter and obtain extract I, and (B) adds 15 times of water gagings again and protect the extraction 1.5h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 180 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 3
(A) get black tea 100kg, add the water of 8 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, and filter and obtain extract I, (B) adds the water of 8 times again, then protect the extraction 1h that boils, and filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 4
(A) get black tea 100kg, add the water of 10 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I, and (B) adds 10 times of water gagings again and protect the extraction 1h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 5
(A) get black tea 100kg, add the water of 8 times, 50 DEG C of constant temperature extract, and extract 3 times, each 0.5h, filter and obtain extract I, and (B) adds 8 times of water gagings again and protect the extraction 0.5h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 6
(A) get black tea 100kg, add the water of 8 times, 45 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I, and (B) adds 8 times of water gagings again and protect the extraction 1h that boils, and filters, obtains extract II
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.Its centrifugate is entered again at 70 DEG C of temperature, be concentrated into proportion be 1.05 ~ 1.12.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 7
(A) get black tea 100kg, add the water of 8 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I
(B) add 8 times of water gagings again and protect the extraction 1h that boils, filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, filters.It is 1.05 ~ 1.12 that its filtrate is concentrated into proportion again at 70 DEG C of temperature.By the concentrate drying under reduced pressure of gained, obtain black tea extract.
Embodiment 8
(A) get black tea 100kg, add the water of 10 times, 55 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I, and (B) adds 10 times of water gagings again and protect the extraction 1h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, membrane filtration.It is 1.05 ~ 1.12 that filtrate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is carried out freeze drying, obtains black tea extract.
Embodiment 9
(A) get black tea 100kg, add the water of 15 times, 60 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I, and (B) adds 15 times of water gagings again and protect the extraction 1h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is carried out belt drying, obtains black tea extract.
Embodiment 10
(A) get black tea 100kg and STEVIA REBAUDIANA 1kg, add the water of 8 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I,
(B) add 8 times of water gagings again and protect the extraction 1h that boils, filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 10
(A) get black tea 100kg and STEVIA REBAUDIANA 10kg, add the water of 8 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I,
(B) add 8 times of water gagings again and protect the extraction 1h that boils, filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 11
(A) get black tea 100kg and Radix Glycyrrhizae 10kg, add the water of 10 times, 55 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I,
(B) add 10 times of water gagings again and protect the extraction 1h that boils, filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 12
(A) get black tea 100kg and Radix Glycyrrhizae 1kg, add the water of 8 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I,
(B) add 8 times of water gagings again and protect the extraction 1h that boils, filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature.The concentrated solution of gained is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 13
(A) get black tea 100kg, add the water of 15 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter to obtain extract I (B) and add 15 times of water gagings again and protect to boil and extract 1h, and filtration, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature, add 1kg xylitol, mixing, directly sprays dry by the concentrated solution of gained after mixing, and EAT is set to 160 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 14
(A) get black tea 100kg, add the water of 15 times, 50 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I
(B) add 15 times of water gagings again and protect the extraction 1h that boils, filter, obtain extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature, add 10kg xylitol, mixing, directly sprays dry by the concentrated solution of gained after mixing, and EAT is set to 160 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 15
(A) get black tea 100kg, add the water of 8 times, 35 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I, and (B) adds 8 times of water gagings again and protect the extraction 1h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature, add 10kg glucose, the concentrated solution of gained after mixing is directly sprayed dry, EAT is set to 180 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Embodiment 16
(A) get black tea 100kg, add the water of 8 times, 35 DEG C of constant temperature extract, and extract 2 times, each 1h, filter and obtain extract I, and (B) adds 8 times of water gagings again and protect the extraction 1h that boils, and filters, obtains extract II,
(C) merging extract I and extract II, 70 DEG C are concentrated into proportion is 1.030-1.035, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature.It is 1.05 ~ 1.12 that its centrifugate is concentrated into proportion again at 70 DEG C of temperature, add 1kg glucose, the concentrated solution of gained after mixing is directly sprayed dry, EAT is set to 170 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h.
Claims (10)
1. an instant black tea extract, is characterized in that, is obtained by following steps:
(A) get black tea, add 5-15 times of water gaging, 35-60 DEG C of extraction, filter, obtain extract I,
(B) filter residue adds 5-15 times of water gaging boiling extraction again, filters, obtains extract II,
(C) merge extract I and extract II, concentrated, precipitation and separation, concentrates again, is drying to obtain.
2. require described instant black tea extract according to right 1, it is characterized in that, the number of times of carrying in described step (A) is 2-3 time, each 0.5-1.5h.
3. require described instant black tea extract according to right 1, it is characterized in that, in described step (A), each amount adding water of extracting is 5-10 times, is preferably 8-10 doubly.
4. require described instant black tea extract according to right 1, it is characterized in that, the Extracting temperature in described step (A) is 50 DEG C.
5. require described instant black tea extract according to right 1, it is characterized in that, protecting extraction time of boiling in described step (B) is 0.5-1.5h.
6. require described instant black tea extract according to right 1, it is characterized in that, the amount that described step (B) adds water is again 5-10 times, is preferably 8-10 doubly.
7. require described instant black tea extract according to right 1, it is characterized in that, the precipitate and separate mode in described step (C) is selected from that tubular type is centrifugal, disk centrifugal, membrane filtration or filter-cloth filtering; Drying mode is selected from drying under reduced pressure, freeze drying, spraying dry or belt drying; Wherein separation temperature is 45 ~ 55 DEG C.
8. require described instant black tea extract according to right 1, it is characterized in that, described step (C) is 1.030-1.035 for merging extract I and extract II, 70 DEG C are concentrated into proportion, and it is centrifugal rear for subsequent use at 45 ~ 55 DEG C of temperature; Its centrifugate is carried out again be concentrated into proportion 1.05 ~ 1.12 at 65-75 DEG C, the concentrated solution of gained is directly sprayed dry, EAT is set to 160-180 DEG C, holding temperature is 45-60 DEG C, peristaltic pump charging rate is 200 ~ 300L/h;
Wherein, in described step (C), EAT is preferably 170 DEG C.
9. described instant black tea extract according to claim 1, it is characterized in that, 1-10% sweet substance can also be added, Adding Way is for extract after add sweet substance to black tea in described step (A) or before drying in described step (C) again, carry out drying after sweet substance being added concentrate mixing, described sweet substance is selected from the one or multiple arbitrarily in STEVIA REBAUDIANA, Radix Glycyrrhizae, xylitol, glucose.
10. the instant black tea extract according to claim 1-9 any one, is characterized in that the black tea in described step (A) is selected from large leaf black tea, middle leaflet kind black tea or leaflet kind black tea.
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| CN108782875A (en) * | 2017-05-03 | 2018-11-13 | 云南天士力帝泊洱生物茶集团有限公司 | A kind of lemon black tea extract and preparation method thereof |
| CN108935868A (en) * | 2017-05-18 | 2018-12-07 | 云南天士力帝泊洱生物茶集团有限公司 | A method of extracting aromatic substance from plant product |
| CN109548931A (en) * | 2019-01-07 | 2019-04-02 | 昭通学院 | A kind of Rhizoma Gastrodiae instant tea and preparation method thereof |
| CN111328893A (en) * | 2018-12-18 | 2020-06-26 | 泰州医药城国科化物生物医药科技有限公司 | Dry powder extracted from black tea and refining process thereof |
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| CN101053355A (en) * | 2006-04-10 | 2007-10-17 | 彭彤 | Health care instant red tea |
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| CN102461693A (en) * | 2010-11-01 | 2012-05-23 | 罗朝雯 | Preparation method of instant black tea |
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| CN1039525A (en) * | 1988-05-19 | 1990-02-14 | 浙江农业大学 | Technology for processing instant tea |
| CN1055860A (en) * | 1990-12-14 | 1991-11-06 | 廖乌奎 | The production technology of instant tea |
| CN101053355A (en) * | 2006-04-10 | 2007-10-17 | 彭彤 | Health care instant red tea |
| CN101715853A (en) * | 2009-12-22 | 2010-06-02 | 云南龙润茶业集团有限公司 | Instant black tea powder and preparation method and application thereof |
| CN102461693A (en) * | 2010-11-01 | 2012-05-23 | 罗朝雯 | Preparation method of instant black tea |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974159A (en) * | 2016-10-27 | 2017-07-25 | 贵州汇珠薏仁米产业开发有限公司 | A kind of instant coix seed haw thorn and chrysanthemum beverage |
| CN108782875A (en) * | 2017-05-03 | 2018-11-13 | 云南天士力帝泊洱生物茶集团有限公司 | A kind of lemon black tea extract and preparation method thereof |
| CN108935868A (en) * | 2017-05-18 | 2018-12-07 | 云南天士力帝泊洱生物茶集团有限公司 | A method of extracting aromatic substance from plant product |
| CN108935868B (en) * | 2017-05-18 | 2023-10-03 | 云南天士力帝泊洱生物茶集团有限公司 | Method for extracting aromatic substances from plant products |
| CN111328893A (en) * | 2018-12-18 | 2020-06-26 | 泰州医药城国科化物生物医药科技有限公司 | Dry powder extracted from black tea and refining process thereof |
| CN109548931A (en) * | 2019-01-07 | 2019-04-02 | 昭通学院 | A kind of Rhizoma Gastrodiae instant tea and preparation method thereof |
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|---|---|
| CN104920699B (en) | 2019-12-10 |
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