CN107410562A - A kind of selenium-rich jasmine black tea and its processing method - Google Patents
A kind of selenium-rich jasmine black tea and its processing method Download PDFInfo
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- CN107410562A CN107410562A CN201710142811.9A CN201710142811A CN107410562A CN 107410562 A CN107410562 A CN 107410562A CN 201710142811 A CN201710142811 A CN 201710142811A CN 107410562 A CN107410562 A CN 107410562A
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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
- A23F3/06—Treating tea before extraction; Preparations produced thereby
- A23F3/14—Tea preparations, e.g. using additives
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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
- A23F3/06—Treating tea before extraction; Preparations produced thereby
- A23F3/08—Oxidation; Fermentation
- A23F3/10—Fermentation with addition of microorganisms or enzymes
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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
- A23F3/40—Tea flavour; Tea oil; Flavouring of tea or tea extract
- A23F3/405—Flavouring with flavours other than natural tea flavour or tea oil
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Abstract
The present invention relates to a kind of selenium-rich jasmine black tea and its processing method, using the two or three tealeaves under tender shoots as raw material, by finish, knead, sterilize, ferment grow dim, rub again, charcoal is roasting etc., and step prepares selenium-rich black tea, selenium-rich jasmine black tea, fragrant odour is prepared in the step such as enfleuraged, radiated by scenting as raw material using selenium-rich black tea and Jasmine again, screened, dried.The present invention uses Selenium-enriched fermentation bacterium fermented tea, obtains selenium-rich black tea, human body selenium element required daily can be supplemented after drinking, and production cost is low, is more suitable for industrialized production.
Description
Technical field
The present invention relates to tea manufacture field, more particularly to a kind of selenium-rich jasmine black tea and its processing method.
Background technology
Selenium is the essential trace elements of the human body.Selenium participates in a variety of selenoenzymes and Selenonic protein in synthesized human.Wherein paddy Guang
Sweet peptide peroxidase, it is catalyzed hydroperoxides in vivo or MDA is changed into water or various alcohols, eliminates
Attack of the free radical to biomembrane, protects biomembrane from oxidative damage；Selenium can improve body immunity, promote lymphocyte
The synthesis of propagation and antibody and immunoglobulin.Selenium has obvious to kinds cancers such as colon cancer, cutaneum carcinoma, liver cancer, breast cancer
Suppression and protection effect, its mesostate methyl enol in body has stronger active anticancer.Selenium simultaneously
Have the function that to mitigate and alleviate heavy metal toxicity.
Coronoid process dissipate capsule bacterium, the past only just found once in a while on ganoderma lucidum in thousand, the especially Fu in the black tea in Hunan Anhua
Grown in brick tea and its dense, this is the exclusive prebiotic strain of Hunan Anhua black tea, also cries overlord bacterium, and this bacterium can be effective
Suppress intestinal cancer, stomach cancer, the diffusion of liver cancer cells.Under high magnified glass, ' golden flower ' is in golden yellow, for example spherical mushroom of shape, greatly
Quantifier elimination and clinical data show, very similar with lucidum spore powder in thousand the effect of coronoid process dissipate capsule bacterium, can be effective
Human immunological competence is lifted, anti-cancer, anticancer, anti-oxidant, anti-aging, makes us promoting longevity, in addition, the effect of fat-eliminating slimming much
Surmount other any strains.
A kind of manufacture crafts of selenium-rich black tea of Chinese patent ZL201310297118.0, describe and dissipate capsule by spraying coronoid process
Bacterium conidia powder, the sodium selenite being sprayed on tealeaves changed into Organic Selenium, the technique grow dim, prepare selenium-rich black
Tea, operation is simple, but by the approach of sprinkling, sodium selenite solution can not be with coronoid process dissipate capsule bacterium conidia powder on tealeaves
Fully contact, reduce the conversion ratio of Organic Selenium so that the bioavailability of selenium reduces, and wastes raw material.
The disclosure of background above technology contents is only used for inventive concept and the technical scheme that auxiliary understands the present invention, and it is not
The prior art of present patent application is necessarily belonged to, shows the applying date of the above in present patent application in no tangible proof
In the case of disclosed, above-mentioned background technology should not be taken to evaluate the novelty and creativeness of the application.
The content of the invention
In order to solve, human body selenium element intake is few, the selenium element utilization rate in Se rich tea is low, selenium-rich black tea production cost
The problems such as high, the present invention provides a kind of selenium-rich jasmine black tea and its processing method, to solve the above problems, moreover it is possible to increase selenium-rich black
The fragrance of tea, there is more preferably sensory experience.
Therefore, a kind of selenium-rich jasmine black tea of present invention offer and its processing method, concrete technical scheme are as follows：
A kind of selenium-rich jasmine black tea, by fresh tea leaf, through pluck, finish, knead, sterilize, ferment grow dim, rub again, charcoal is baked
Step, it is processed into selenium-rich black tea；Selenium-rich black tea and Jasmine are pressed into following parts by weight again：Selenium-rich black tea 1-10 parts, Jasmine
0.5-5 parts, enfleurage, radiate, screen, baking step through smoking, selenium-rich jasmine black tea is made.
Preferably, described a kind of selenium-rich jasmine black tea, described selenium-rich black tea 3-8 parts, Jasmine 1.5-4 parts.
It is further preferred that a kind of described selenium-rich jasmine black tea, 5 parts of the selenium-rich black tea, 2.5 parts of Jasmine.
A kind of described selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea comprise the following steps：
S1 is plucked：The lower fresh tea leaf of harvesting；
S2 finishes：Fresh tea leaf is piled into the high tea heaps of 8-12cm, tealeaves uniformly finished with 110 DEG C of steam, per 15min
Turning once, repeats 2-3 times；
S3 is kneaded：Tealeaves after step S2 is finished is kneaded while hot, then by tea light pressure, be kneaded into bar slowly, tea juice is overflowed attached
In tealeaves surface；
S4 is sterilized：By the tealeaves obtained by step S3 with 99-120 DEG C of wet sterilization 3-5min；
S5 grows dim：Tealeaves sterilized step S4 is well mixed with Selenium-enriched fermentation bacterium, it is high to pile 75-85cm, hair
Ferment 3-7 days, fermentation temperature are controlled at 35-55 DEG C；
S6 is rubbed again：Tealeaves after step S5 is grown dim is rubbed, rolled tightly again；
S7 charcoals are baked：The tealeaves that step S6 was rubbed again is baked to moisture with pine charcoal and is less than 7%, produces selenium-rich black tea.
Preferably, a kind of described selenium-rich jasmine black tea, described Selenium-enriched fermentation bacterium are selenium-rich coronoid process dissipate capsule bacterium and selenium-rich
Saccharomycete is using weight ratio as 5:1 mixing；Described yeast rich in selenium is fission yeast, candida utili bacterium, yellow quarter butt
One kind of bacterium.
Preferably, a kind of described selenium-rich jasmine black tea, the incubation step of the Selenium-enriched fermentation bacterium include：Sterilized
Selenium compound concentration be 1-3mg/L dextrose culture-medium in add account for culture medium gross weight 3-9% zymophyte, 25-35 DEG C,
PH is that 3.0-7.0 cultivates 16-24h, makes fermentation bacterium number living 8 × 109-9×109Individual/ml scopes, produce Selenium-enriched fermentation bacterium.
It is further preferred that a kind of described selenium-rich jasmine black tea, selenium is sodium selenite, the one or two of sodium selenate；
Dextrose culture-medium is formed by the raw material of following parts by weight：Peptone 0.4-4.8 parts, sodium chloride 5-15 parts, water
100-1000 parts, glycine 0.12-2.50 parts, potassium dihydrogen phosphate 0.06-0.65 parts, glucose 2-15 parts.
A kind of processing method of described selenium-rich jasmine black tea, comprises the following steps：
T1 enfleurages：Selenium-rich black tea and jasmine fresh flower are taken according to parts by weight, are well mixed, the high 35-45cm of tea heap heap,
Scenting is enfleuraged 2-5h；
T2 radiates：The tea heap that step T1 scentings are enfleuraged is made thinner, turning radiating, repeated 1 to 2 times, tea heap, which is made thinner, is highly
8-12cm, the cooling of tea heap；
T3 is screened：Jasmine is screened out by the tea heap described in step T2 is put into screening machine；
T4 is dried：Jasmine black tea is dried, produces selenium-rich jasmine black tea.
Preferably, the processing method of described a kind of selenium-rich jasmine black tea, tea heap cools to 25 DEG C described in step T2.
Preferably, the processing method of described a kind of selenium-rich jasmine black tea, the drying temperature described in step T5 are 100-110
DEG C, moisture is dried to less than 7%.
The present invention compared with prior art, has the advantages that：
1. the present invention uses Selenium-enriched fermentation coronoid process dissipate capsule bacterium black tea, the organic selenium content allowed in black tea greatly promotes, and
Growth has coronoid process dissipate capsule bacterium much beneficial to human body to be also referred to as golden flower bacterium in black tea.
2. the present invention is mixed using coronoid process dissipate capsule bacterium with one kind of fission yeast, candida utili bacterium, brevibacterium flavum
Fermentation, add the content of protein in tealeaves.
3. the present invention can effectively reduce the production cost of selenium-rich jasmine black tea.
4. the present invention selenium-rich jasmine black tea, fragrant odour, no black tea be long placed in after the taste that goes mouldy.
Embodiment
First, the culture of Selenium-enriched fermentation bacterium
Cultural method 1
The culture of Selenium-enriched fermentation bacterium：Coronoid process dissipate capsule bacterium and fission yeast are using weight ratio as 5:1 mixing；
Dextrose culture-medium is formed by the raw material of following parts by weight：It is 0.4 part of peptone, 5 parts of sodium chloride, 100 parts of water, sweet
0.12 part of propylhomoserin, 0.06 part of potassium dihydrogen phosphate, 2 parts of glucose；
Added in the dextrose culture-medium that sterilized concentration of sodium selenite is 1mg/L and account for the 3% of culture medium gross weight
Zymophyte, 25 DEG C, pH be 3.0 culture 16h, make fermentation bacterium number living 8 × 109-9×109Individual/ml scopes, produce Selenium-enriched fermentation
Bacterium.
Cultural method 2
The culture of Selenium-enriched fermentation bacterium：Coronoid process dissipate capsule bacterium and candida utili bacterium are using weight ratio as 5:1 mixing；
Dextrose culture-medium is formed by the raw material of following parts by weight：4.8 parts of peptone, 15 parts of sodium chloride, 1000 parts of water,
2.50 parts of glycine, 0.65 part of potassium dihydrogen phosphate, 15 parts of glucose；
9% hair for accounting for culture medium gross weight is added in the dextrose culture-medium that sterilized selenic acid na concn is 3mg/L
Yeast-like fungi, 35 DEG C, pH be 7.0 culture 24h, make fermentation bacterium number living 8 × 109-9×109Individual/ml scopes, produce Selenium-enriched fermentation bacterium.
Cultural method 3
The culture of Selenium-enriched fermentation bacterium：Coronoid process dissipate capsule bacterium and brevibacterium flavum are using weight ratio as 5:1 mixing；
Dextrose culture-medium is formed by the raw material of following parts by weight：2.5 parts of peptone, 10 parts of sodium chloride, 600 parts of water,
1.50 parts of glycine, 0.35 part of potassium dihydrogen phosphate, 8 parts of glucose；
It is 1 in sterilized sodium selenite, sodium selenate weight ratio:1 concentration is to be added in 2mg/L dextrose culture-medium
Account for 5% zymophyte of culture medium gross weight, 30 DEG C, pH be 5.0 culture 20h, make fermentation bacterium number living 8 × 109-9×109Individual/ml
Scope, produce Selenium-enriched fermentation bacterium.
2nd, the specific processing of selenium-rich jasmine black tea and detection method
Embodiment 1
A kind of selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea are as follows：
Plucking fresh tea leaf；Tealeaves is piled into the high tea heaps of 8cm, tealeaves uniformly finished with 110 DEG C of steam, per 15min
Turning once, repeats 2-3 times；To be kneaded while hot after fixing, by tea light pressure, be kneaded into bar slowly, tea juice, which is overflowed, invests surface,
Tealeaves can be dried naturally or do not dried；By tealeaves with 99 DEG C of wet sterilization 3min；By sterilized tealeaves and culture
The Selenium-enriched fermentation bacterium that method 1 is cultivated is well mixed, and piles the high tea heaps of 75cm, ferments 3 days, and fermentation temperature is controlled at 35 DEG C；Will
Tea bar after growing dim is rubbed, rolled tightly again, and tea bar is baked to moisture 7% with pine charcoal, produces selenium-rich black tea.
The processing method of described selenium-rich jasmine black tea is as follows：
1 part of selenium-rich black tea and 0.5 part of jasmine fresh flower are taken according to parts by weight, are well mixed, the high 35cm of tea heap heap, basement
Make the 2h that enfleurages；The tea heap temperature 45 C that scenting was enfleuraged, tea heap are as thin as height 8cm, and turning is radiated to 25 DEG C, repeat 1 to 2
It is secondary；Tea heap is put into after screening machine screens out Jasmine, and tea is dried into moisture to 7% at 100 DEG C, it is black to produce selenium-rich jasmine
Tea.
Detection Selenium Content in tea is carried out according to GB/t21729-2008, tealeaves sample is after sour hot digestion, in 6mol/
In L hydrochloric acid mediums, the hexavalent selenium in sample is reduced into tetravalence selenium, by the use of potassium borohydride as reducing agent, by tetravalence selenium in hydrochloric acid
Hydrogen selenide is reduced into medium, and is brought into by carrier gas and atomization is carried out in atomizer, under selenium hollow cathode light irradiation, ground state
Selenium atom is excited to upper state, then deactivates when returning to ground state, launches the fluorescence of characteristic wavelength, and its fluorescence intensity contains with selenium
Measure it is directly proportional, it is more quantitative with standard series.The Se content of selenium-rich jasmine black tea is 0.30mg/kg.
Embodiment 2
A kind of selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea are as follows：
Plucking fresh tea leaf；Tealeaves is piled into size as tea heap high 10cm, tealeaves uniformly finished with 110 DEG C of steam,
Per 15min turnings once, repeat 2-3 times；Kneaded while hot after fixing, by tea light pressure, be kneaded into bar slowly, tea juice, which is overflowed, to be invested
Surface；Tealeaves is subjected to wet sterilization 5min at 120 DEG C；The Selenium-enriched fermentation bacterium that sterilized tealeaves and cultural method 2 are cultivated
It is well mixed, the high tea heaps of 80cm are piled, are fermented 7 days, fermentation temperature is controlled at 55 DEG C；Tea bar after growing dim is rubbed again,
Roll tightly, tea bar is baked to moisture 5% with pine charcoal, produces selenium-rich black tea.
The processing method of described selenium-rich jasmine black tea is as follows：
10 parts of selenium-rich black teas and 5 parts of jasmine fresh flowers are taken according to parts by weight, are well mixed, the high 40cm of tea heap heap, basement
Make the 5h that enfleurages；65 DEG C of the tea heap temperature that scenting was enfleuraged, tea heap are as thin as height 12cm, and turning is radiated to 25 DEG C, repeat 1 to 2
It is secondary；Tea heap is put into after screening machine screens out Jasmine, and tea is dried into moisture to 7% at 110 DEG C, it is black to produce selenium-rich jasmine
Tea.
Detection Selenium Content in tea is carried out according to GB/t21729-2008, tealeaves sample is after sour hot digestion, in 6mol/
In L hydrochloric acid mediums, the hexavalent selenium in sample is reduced into tetravalence selenium, by the use of potassium borohydride as reducing agent, by tetravalence selenium in hydrochloric acid
Hydrogen selenide is reduced into medium, and is brought into by carrier gas and atomization is carried out in atomizer, under selenium hollow cathode light irradiation, ground state
Selenium atom is excited to upper state, then deactivates when returning to ground state, launches the fluorescence of characteristic wavelength, and its fluorescence intensity contains with selenium
Measure it is directly proportional, it is more quantitative with standard series.The Se content of selenium-rich jasmine black tea is 0.38mg/kg.
Embodiment 3
A kind of selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea are as follows：
Plucking fresh tea leaf；Tealeaves is piled into the high tea heaps of 12cm, tealeaves uniformly finished with 110 DEG C of steam, per 15min
Turning once, repeats 2-3 times；Kneaded while hot after fixing, by tea light pressure, be kneaded into bar slowly, tea juice, which is overflowed, invests surface；Will
Tealeaves carries out wet sterilization 4min at 110 DEG C；Sterilized tealeaves is mixed with the Selenium-enriched fermentation bacterium that cultural method 3 is cultivated
It is even, the high tea heaps of 85cm are piled, are fermented 5 days, fermentation temperature is controlled at 40 DEG C；Tea bar after growing dim is rubbed again, rolled tightly, tea
Bar is baked to moisture 5% with pine charcoal, produces selenium-rich black tea.
The processing method of described selenium-rich jasmine black tea is as follows：
1 part of selenium-rich black tea and 0.5 part of jasmine fresh flower are taken according to parts by weight, are well mixed, the high 35cm of tea heap heap, basement
Make the 3h that enfleurages；The tea heap temperature 50 C that scenting was enfleuraged, tea heap are as thin as height 8cm, and turning is radiated to 25 DEG C, repeat 1 to 2
It is secondary；Tea heap is put into after screening machine screens out Jasmine, and tea is dried into moisture to 6% at 100 DEG C, it is black to produce selenium-rich jasmine
Tea.
Detection Selenium Content in tea is carried out according to GB/t21729-2008, tealeaves sample is after sour hot digestion, in 6mol/
In L hydrochloric acid mediums, the hexavalent selenium in sample is reduced into tetravalence selenium, by the use of potassium borohydride as reducing agent, by tetravalence selenium in hydrochloric acid
Hydrogen selenide is reduced into medium, and is brought into by carrier gas and atomization is carried out in atomizer, under selenium hollow cathode light irradiation, ground state
Selenium atom is excited to upper state, then deactivates when returning to ground state, launches the fluorescence of characteristic wavelength, and its fluorescence intensity contains with selenium
Measure it is directly proportional, it is more quantitative with standard series.The Se content of selenium-rich jasmine black tea is 0.33mg/kg.
Embodiment 4
A kind of selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea are as follows：
Plucking fresh tea leaf；Tealeaves is piled into the high tea heaps of 8cm, tealeaves uniformly finished with 110 DEG C of steam, per 15min
Turning once, repeats 2-3 times；Kneaded while hot after fixing, by tea light pressure, be kneaded into bar slowly, tea juice, which is overflowed, invests surface；Will
Tealeaves carries out wet sterilization 4min at 105 DEG C；Sterilized tealeaves is mixed with the Selenium-enriched fermentation bacterium that cultural method 1 is cultivated
It is even, the high tea heaps of 75cm are piled, are fermented 3 days, fermentation temperature is controlled at 35 DEG C；Tea bar after growing dim is rubbed again, rolled tightly, tea
Bar is baked to moisture 6% with pine charcoal, produces selenium-rich black tea.
The processing method of described selenium-rich jasmine black tea is as follows：
8 parts of selenium-rich black teas and 4 parts of jasmine fresh flowers are taken according to parts by weight, are well mixed, the high 40cm of tea heap heap, scenting
Enfleurage 4h；The tea heap temperature 70 C that scenting was enfleuraged, tea heap are as thin as height 10cm, and turning is radiated to 25 DEG C, repeat 1 to 2 times；
Tea heap is put into after screening machine screens out Jasmine, and tea is dried into moisture to 6.5% at 108 DEG C, produces selenium-rich jasmine black tea.
Detection Selenium Content in tea is carried out according to GB/t21729-2008, tealeaves sample is after sour hot digestion, in 6mol/
In L hydrochloric acid mediums, the hexavalent selenium in sample is reduced into tetravalence selenium, by the use of potassium borohydride as reducing agent, by tetravalence selenium in hydrochloric acid
Hydrogen selenide is reduced into medium, and is brought into by carrier gas and atomization is carried out in atomizer, under selenium hollow cathode light irradiation, ground state
Selenium atom is excited to upper state, then deactivates when returning to ground state, launches the fluorescence of characteristic wavelength, and its fluorescence intensity contains with selenium
Measure it is directly proportional, it is more quantitative with standard series.The Se content of selenium-rich jasmine black tea is 0.34mg/kg.
Embodiment 5
A kind of selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea are as follows：
Plucking fresh tea leaf；Tealeaves is piled into the high tea heaps of 10cm, tealeaves uniformly finished with 110 DEG C of steam, per 15min
Turning once, repeats 2-3 times；Kneaded while hot after fixing, by tea light pressure, be kneaded into bar slowly, tea juice, which is overflowed, invests surface；Will
Tealeaves carries out wet sterilization 3.5min at 115 DEG C；Sterilized tealeaves is mixed with the Selenium-enriched fermentation bacterium that cultural method 2 is cultivated
It is even, the high tea heaps of 80cm are piled, are fermented 7 days, fermentation temperature is controlled at 50 DEG C；Tea bar after growing dim is rubbed again, rolled tightly, tea
Bar is baked to moisture 7% with pine charcoal, produces selenium-rich black tea.
The processing method of described selenium-rich jasmine black tea is as follows：
5 parts of selenium-rich black teas and 2.5 parts of jasmine fresh flowers are taken according to parts by weight, are well mixed, the high 42cm of tea heap heap, basement
Make the 3.5h that enfleurages；The tea heap temperature 60 C that scenting was enfleuraged, tea heap are as thin as height 9cm, and turning is radiated to 25 DEG C, repeat 1 to 2
It is secondary；Tea heap is put into after screening machine screens out Jasmine, and tea is dried into moisture to 6% at 104 DEG C, it is black to produce selenium-rich jasmine
Tea.
Detection Selenium Content in tea is carried out according to GB/t21729-2008, tealeaves sample is after sour hot digestion, in 6mol/
In L hydrochloric acid mediums, the hexavalent selenium in sample is reduced into tetravalence selenium, by the use of potassium borohydride as reducing agent, by tetravalence selenium in hydrochloric acid
Hydrogen selenide is reduced into medium, and is brought into by carrier gas and atomization is carried out in atomizer, under selenium hollow cathode light irradiation, ground state
Selenium atom is excited to upper state, then deactivates when returning to ground state, launches the fluorescence of characteristic wavelength, and its fluorescence intensity contains with selenium
Measure it is directly proportional, it is more quantitative with standard series.The Se content of selenium-rich jasmine black tea is 0.35mg/kg.
Embodiment 6
A kind of selenium-rich jasmine black tea, the preparation process of the selenium-rich black tea are as follows：
Plucking fresh tea leaf；Fresh tea leaf is dried, added water in tealeaves and water ratio 10:2 mix the high 85cm of rear heap thoroughly, add
The Selenium-enriched fermentation bacterium for entering the culture of cultural method 3 is fermented, and is fermented 5 days, and fermentation temperature control is at 40 DEG C, naturally dry after fermentation
Produce selenium-rich black tea.
The processing method of described selenium-rich jasmine black tea is as follows：
5 parts of selenium-rich black teas and 2.5 parts of jasmine fresh flowers are taken according to parts by weight, are well mixed, the high 42cm of tea heap heap, basement
Make the 3h that enfleurages；55 DEG C of the tea heap temperature that scenting was enfleuraged, tea heap are as thin as height 9cm, and turning is radiated to 25 DEG C, repeat 1 to 2
It is secondary；Tea heap is put into after screening machine screens out Jasmine, and tea is dried into moisture to 6.5% at 104 DEG C, it is black to produce selenium-rich jasmine
Tea.
Detection Selenium Content in tea is carried out according to GB/t21729-2008, tealeaves sample is after sour hot digestion, in 6mol/
In L hydrochloric acid mediums, the hexavalent selenium in sample is reduced into tetravalence selenium, by the use of potassium borohydride as reducing agent, by tetravalence selenium in hydrochloric acid
Hydrogen selenide is reduced into medium, and is brought into by carrier gas and atomization is carried out in atomizer, under selenium hollow cathode light irradiation, ground state
Selenium atom is excited to upper state, then deactivates when returning to ground state, launches the fluorescence of characteristic wavelength, and its fluorescence intensity contains with selenium
Measure it is directly proportional, it is more quantitative with standard series.The Se content of selenium-rich jasmine black tea is 0.07mg/kg.
3rd, clinical practice
1. the toxicity research of selenium-rich jasmine black tea
1.1 test specimen
Selenium-rich jasmine black tea granularity：Average 150nm
1.2 experimental animal
Big white mouse, body weight 150-170g or so, male and female half and half, Nanning animal feeding center provide
1.3 test method
Selenium-rich jasmine black tea every bag of 5g of maximum, once a bag, three times per day, calculated by body weight 50kg for each person, quite
In each 0.1g/kg.This is tested to 10 times, i.e. 0.1g/100g that the dosage of big white mouse is human body, after being diluted with a small amount of water, is given
Big white mouse gavage, separately sets control group, to isometric drinking water, every group of male and female 8.Three times, other are fed raises daily gavage
Material is carried out as usual, altogether gavage 6 weeks.A body weight is measured every two weeks, observes animal activity, hair color, excrement etc. during experiment
Situation simultaneously records to abnormal conditions.Blood routine (leukocyte count, red blood cell number, platelet count, net are surveyed in blood sampling during off-test
Knit red blood cell number, content of hemoglobin), renal function (urea nitrogen), liver function (total protein, albumin, GPT, TTT)
1.4 result of the tests are with discussing
During 6 weeks feed, the average day's expenditure of feed is 13 ± 2g/, and per day amount of drinking water is 35 ± 5ml/, and category is just
Normal scope；Each group changes of weight increases without significant difference, category normal type.Situations such as big white mouse activity, hair color, excrement, is no different
Often change, refers to table 1.
Selenium-rich jasmine black tea also has no significant effect to the blood routine of big white mouse, within normal physiologic range, refers to table
2。
Selenium-rich jasmine black tea also has no significant effect to Liver and kidney function, within normal physiologic range, refers to table 3.
Thus, selenium-rich jasmine black tea is under conditions of people drinks 10 times of amounts, to big white mouse gavage 6 weeks, to the drink of big white mouse
Food, body weight increase, blood routine, liver and renal function have no significant effect.
Selenium-rich jasmine black tea is absorbed by stomach, improves tea component dissolution rate and bioavilability, without dirt during processing
Dye, denaturation, ensure that its security；Se rich tea day the amount of drinking everyone be less than 15g, according to the selenium-rich jasmine black tea of the present invention
Se content 0.35mg/kg is calculated, and is 52.5 micrograms per day for human beings selenium-supply amount, and the nutrition selenium supplement standard that the World Health Organization proposes is
50-250 micrograms, if selenium-rich jasmine black tea all soaks out selenium with water, relatively low selenium-supply amount, will not cause in selenium in being also
Poison.
The each group big white mouse changes of weight situation of table 1
The each group big white mouse blood routine of table 2
The each group big white mouse Liver and kidney function of table 3
2. typical case
The selenium-rich jasmine black tea processed in embodiment 6 is drunk daily to sub-health population, periods of months.
Case 1
Mr. Wang, female, 42 years old, immune system disorder, frequent tonsillotome inflammation, throat swelling and pain, there is foreign body sensation, daily send out this
Bright selenium-rich jasmine black tea, which brews, drinks, and first pass pours into boiling water after boiling hot tea quickly by tea to going out, then to pour into boiling water brewed
20min, tea is poured out and drunk.The continuous selenium-rich jasmine black tea for drinking the present invention is after 3 days, and tonsillotome inflammation has been alleviated, larynx
Throat swelling and pain remission, continue to drink the selenium-rich jasmine black tea of the present invention after 2 months, physical function takes a turn for the better, tonsillotome inflammation disease
Shape disappears, and throat recovers normal.
Case 2
Zhang, man, 55 years old, has hypertension, every morning to be taken blood pressure after getting up, and blood pressure is more than 180 millimetress of mercury by decompression
Medicine maintains, and brews the selenium-rich jasmine black tea of the present invention drink daily, boiling water is poured into after boiling hot tea and quickly arrives tea by first pass
Go out, then pour into the brewed 20min of boiling water, tea is poured out and drunk.The continuous selenium-rich jasmine black tea for drinking the present invention is opened after 1 month
The hypertension symptom of certain has been alleviated, and continues to drink the selenium-rich jasmine black tea of the present invention after 6 months, rear blood pressure from Zhang's daily morning
For 120 millimetress of mercury.
Case 3
It is high certain, man, 38 years old, have a sweet tooth, build is partially fat, hyperglycaemia, empty stomach whole blood blood glucose value 8.5mmol/L, daily
The selenium-rich jasmine black tea of the present invention is brewed and drunk, first pass quickly pours out tea after boiling water is poured into, then pours into boiling water bubble
20min processed, tea is poured out and drunk.After 7 months, empty stomach whole blood blood glucose value is the continuous selenium-rich jasmine black tea for drinking the present invention
6.2mmol/L。
Case 4
Lee, female, 70 years old, due to older, ceruical uertebra part blood artery began with blocking and forms thrombus, and hand channel is often numb,
The selenium-rich jasmine black tea of the present invention is brewed daily and drunk, first pass quickly pours out tea after boiling water is poured into, then pours into out
Bubble 20min, tea is poured out and drunk.After 2 months, the numb situation of hand has the continuous selenium-rich jasmine black tea for drinking the present invention
Take a turn for the better, be further continued for after drinking the selenium-rich jasmine black tea of the present invention, checked to hospital and find that ceruical uertebra part arterial thrombus becomes than before
It is small.
Case 5
Meng, man, 50 years old, back grew 0.5cm sarcomas, does not interfere with outward appearance in back due to growing, does not go to hospital to enter
Row treatment, the selenium-rich jasmine black tea of the present invention being brewed drunk daily, first pass quickly pours out tea after boiling water is poured into, then
The brewed 20min of boiling water is poured into, tea is poured out and drunk.After 1 month, sarcoma starts the continuous selenium-rich jasmine black tea for drinking the present invention
Slowly diminish, be further continued for sarcoma after drinking selenium-rich jasmine black tea of the invention and disappear.
Above content is to combine specific/preferred embodiment further description made for the present invention, it is impossible to
Assert that the specific implementation of the present invention is confined to these explanations.Come for general technical staff of the technical field of the invention
Say, without departing from the inventive concept of the premise, it can also make some replacements or modification to the embodiment that these have been described,
And these are substituted or variant should all be considered as belonging to protection scope of the present invention.
Claims (10)
- A kind of 1. selenium-rich jasmine black tea, it is characterised in that by fresh tea leaf, through pluck, finish, knead, sterilize, ferment grow dim, Rub again, the roasting step of charcoal, be processed into selenium-rich black tea；Selenium-rich black tea and Jasmine are pressed into following parts by weight again：Selenium-rich black tea 1-10 parts, Jasmine 0.5-5 parts, enfleurage, radiate, screen, baking step through smoking, selenium-rich jasmine black tea is made.
- A kind of 2. selenium-rich jasmine black tea as claimed in claim 1, it is characterised in that：Described selenium-rich black tea 3-8 parts, Jasmine 1.5-4 part.
- A kind of 3. selenium-rich jasmine black tea as claimed in claim 2, it is characterised in that：5 parts of the selenium-rich black tea, Jasmine 2.5 Part.
- A kind of 4. selenium-rich jasmine black tea as any one of claim 1-3, it is characterised in that the system of the selenium-rich black tea Standby process comprises the following steps：S1 is plucked：The lower fresh tea leaf of harvesting；S2 finishes：Fresh tea leaf is piled into the high tea heaps of 8-12cm, tealeaves uniformly finished with 110 DEG C of steam, per 15min turnings Once, repeat 2-3 times；S3 is kneaded：Tealeaves after step S2 is finished is kneaded while hot, then by tea light pressure, be kneaded into bar slowly, tea juice, which is overflowed, invests tea Leaf surface；S4 is sterilized：By the tealeaves obtained by step S3 with 99-120 DEG C of wet sterilization 3-5min；S5 grows dim：Tealeaves sterilized step S4 is well mixed with Selenium-enriched fermentation bacterium, it is high to pile 75-85cm, and ferment 3-7 My god, fermentation temperature is controlled at 35-55 DEG C；S6 is rubbed again：Tealeaves after step S5 is grown dim is rubbed, rolled tightly again；S7 charcoals are baked：The tealeaves that step S6 was rubbed again is baked to moisture with pine charcoal and is less than 7%, produces selenium-rich black tea.
- A kind of 5. selenium-rich jasmine black tea as claimed in claim 4, it is characterised in that：Described Selenium-enriched fermentation bacterium is selenium-rich coronoid process Bulk bacteria and yeast rich in selenium are using weight ratio as 5:1 mixing；Described yeast rich in selenium is fission yeast, candida utili Bacterium, one kind of brevibacterium flavum.
- A kind of 6. selenium-rich jasmine black tea as described in claim 4-5 any one, it is characterised in that：The Selenium-enriched fermentation bacterium Incubation step includes：Added in the dextrose culture-medium that sterilized selenium compound concentration is 1-3mg/L and account for culture medium gross weight 3-9% zymophyte, 25-35 DEG C, pH be that 3.0-7.0 cultivates 16-24h, make fermentation bacterium number living 8 × 109-9×109Individual/ml Scope, produce Selenium-enriched fermentation bacterium.
- A kind of 7. selenium-rich jasmine black tea as claimed in claim 6, it is characterised in that：The selenium is sodium selenite, sodium selenate It is one or two kinds of；Dextrose culture-medium is formed by the raw material of following parts by weight：Peptone 0.4-4.8 parts, sodium chloride 5-15 parts, water 100- 1000 parts, glycine 0.12-2.50 parts, potassium dihydrogen phosphate 0.06-0.65 parts, glucose 2-15 parts.
- 8. a kind of processing method of selenium-rich jasmine black tea as claimed in claim 1, it is characterised in that comprise the following steps：T1 enfleurages：Selenium-rich black tea and jasmine fresh flower are taken according to parts by weight, are well mixed, the high 35-45cm of tea heap heap, scenting Enfleurage 2-5h；T2 radiates：The tea heap that step T1 scentings are enfleuraged is made thinner, turning radiating, repeated 1 to 2 times, it is highly 8- that tea heap, which is made thinner, 12cm, the cooling of tea heap；T3 is screened：Jasmine is screened out by the tea heap described in step T2 is put into screening machine；T4 is dried：Jasmine black tea is dried, produces selenium-rich jasmine black tea.
- A kind of 9. processing method of selenium-rich jasmine black tea as claimed in claim 8, it is characterised in that：Tea heap described in step T2 drops Temperature is to 25 DEG C.
- A kind of 10. processing method of selenium-rich jasmine black tea as claimed in claim 8, it is characterised in that：Baking described in step T5 Dry temperature is 100-110 DEG C, is dried to moisture less than 7%.
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| CN111919914A (en) * | 2020-07-30 | 2020-11-13 | 湘丰茶业集团有限公司 | Preparation method of jasmine flower and golden flower dark tea |
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