CN109329471A - Selenium-enriched tea leaf and preparation method thereof - Google Patents

Abstract

The present invention relates to a kind of preparation method of tealeaves rich in selenium element and tealeaves itself, product contains the protein, carbohydrate and potassium abundant, calcium and vitamins and other nutritious components of a large amount of needed by human body, and long-term drinking has lowering blood pressure and blood fat, hypoglycemic, antiphlogistic antibacterial, prevention myocardial infarction and cerebral hemorrhage effect.Mulberry leaf are all good by preparation method mouthfeel of the invention, flavor simultaneously, have unexpected technical effect.

Description

Selenium-enriched tea leaf and preparation method thereof

Technical field

The present invention relates to tea fields, specifically Se rich tea, i.e., rich in selenium element tealeaves with and preparation method thereof.

Background technique

Selenium is one of 14 kinds of microelements needed by human, and is the most important special effect microelement of life, is human body The bodyguard of health, is the jinx of cancer, is the patron saint of cardiovascular and cerebrovascular.Global 300 multidigits biology, medical expert study and think, It is few that human body selenium deficiency can induce various cancers, cardiovascular and cerebrovascular disease, diabetes, hepatopathy, asthma, rheumatic arthritis, pulmonary heart disease, blueness More than the 40 kinds of diseases such as year amblyopia myopia, senile cataract and dementia.Selenium can improve the immunity of the human body and to the resistance of disease.Selenium Cancer cell hyperplasia and diffusion can be prevented, anticancer effect is significant, and american cancer expert points out, appropriate Selenium Supplement can almost prevent all Cancer, the World Health Organization also once announced that selenium anticancer was beyond the question.Drinking tealeaves has long tradition in China, especially closely Year has found that tealeaves has the function of Enriching Selenium, it absorbs the inorganic selenium in soil, organic selenium is formed in vivo, for Chinese state Interior habit is drunk tealeaves and is required supplementation with for the crowd of Trace selenium, and drinking Se rich tea becomes the important way of people's selenium-supply One of diameter.Summary of the invention plants mulberry tree containing selenium fertilizer or in suitable Se content soil using that meet national standards, and makes Use its tender shoots, tender leaf as raw material.

Summary of the invention

The present invention prepare the step of Se rich tea include: 1- picking；2- cuts leaf, booth blueness；3- parch.1 wherein picking step When including: spring, summer, autumn mulberry tree rudiment suddenly, mulberry bud (also known as taking the lead) at the top of mulberry tree is picked in due course in conjunction with topping (promote meriphyll), Uniform tender shoots is selected, for producing fine work mulberry young tea.It can also be in spring, period in late fall picking ramulus mori middle and upper part without pesticide The tender mulberry leaf that residual, no disease and pests harm pollute, discard petiole.According to mulberry leaf tender degree always, filing is handled respectively.Sand and dust are seriously Side, mulberry leaf surface must be sprayed to dry only with clear water and adopted again with dust etc. before adopting.2 wherein cut leaf, the green step in booth includes: that will adopt back Mulberry bud it is thin in time be spread out in clean bamboo plaque or cement level land, indoor requirement is clean, it is nice and cool, divulge information.Spreading thickness will be suitable for, It is determined according to specific space, in general spreading thickness is about 10--15cm, and 50cm wide is spaced intermediate convenient for ventilative at a ridge, Spreading the time is 4--6 hour, and centre is stirred once, until bud-leaf withers soft naturally, pair is made when gloss gradually loses turn dark.This in season bud-leaf Water content is 70% or so.To the mulberry leaf adopted back, old tender consistent normalizing shelves determine the size of slitting as needed.It can cut At the mulberry shoot of 1.5x3.0cm length and width, then spread.3 wherein to include: (1) will be put into the parch step by the green tealeaves in booth It finishes in pot, temperature is adjusted to 120-140 degrees Celsius or in the case of variation of ambient temperature is larger controlled at hearing Slight water detonans sound is preference temperature, fries after cooking to fresh leaf and softens and do not have focus side, the above-mentioned steps time was at 2-3 minutes； This step is water-removing, rubs；(2) it then turn-takes again with frying fresh leaf group is shaken loose, until fresh leaf green gas disappears, faint scent is overflowed, and 5,6 one-tenth it is dry when, fresh leaf is swept as in another adjacent pot, is stir-fried by hand, fresh leaf is picked up, claps pressure, shake loose up to fresh leaf weightlessness 45-50%；This step is manage bar, shaping.(3) it bakes.It is carried out using hand-held basketwork brazier (preferably bamboo) and charcoal fuel (chestnut charcoal is preferred) It bakes.It is preferable to use gross fire, final firing two stages.Carrying out overturning in the process keeps it uniformly weightless.It is preferred that gross fire is laggard at doing to 7-8 Row sufficient fire drying.Sufficient fire drying can be carried out according to taste, such as can be dried to bud-leaf hand rubbing into powder, and vein is in crab cream color, and milli is aobvious Dew, has peat-reek to be advisable.General warranty water content is 5% hereinafter, by spreading for cooling, fastidious, classification, packaging, storage or sale. The invention has the benefit that, in conjunction with the conversion metabolism of selenium-rich photosynthetic bacteria, passing through selenium using the characteristic of mulberry tree Enriching Selenium The better sorption enhanced of mulberry tree, realizes the selenium-rich of mulberry leaf, creates natural, green, selenium-rich good natural endowment and quality, product Protein, carbohydrate and potassium abundant, calcium and vitamins and other nutritious components containing a large amount of needed by human body, long-term drinking tool There are lowering blood pressure and blood fat, hypoglycemic, antiphlogistic antibacterial, prevention myocardial infarction and cerebral hemorrhage effect.Mulberry leaf are by of the invention simultaneously Preparation method mouthfeel, flavor are all good to have unexpected technical effect.

Specific embodiment

The present invention will be further described With reference to embodiment.(1) it picks.When spring, summer, autumn mulberry tree rudiment, In conjunction with mulberry bud (also known as taking the lead) at the top of topping (promote meriphyll) in due course picking mulberry tree, it is desirable that uniformity, for producing fine work Mulberry young tea；The tender mulberry leaf that can also be polluted in spring, period in late fall picking ramulus mori middle and upper part non agricultural chemical residuum, no disease and pests harm, discard Petiole.According to mulberry leaf tender degree always, filing is handled respectively.The serious place of sand and dust, mulberry leaf surface must be used before adopting with dust etc. Clear water spray is dried only adopts again.(2) Qie Ye, booth are green.It is spread out in the mulberry bud adopted back is thin in time in clean bamboo plaque or cement level land, Indoor requirement is clean, nice and cool, ventilation.Spreading thickness is about 10--15cm, and 50cm wide is at a ridge, spaced intermediate convenient for ventilative, booth Putting the time is 4--6 hour, and centre is stirred once, until bud-leaf withers soft naturally, pair is made when gloss gradually loses turn dark.This in season bud-leaf contains Water is 70% or so.To the mulberry leaf adopted back, old tender consistent normalizing shelves are first cut into the mulberry shoot of 1.5x3.0cm length and width, then spread out It puts.(3) parch technology.1. water-removing is rubbed: with two mouthfuls of pots side by side (gradient is 15--25 °, is used as water-removing and manage bar respectively) Or 60 type roller fixation machine.Fixing temperature is suitable at 120 DEG C -- it 140 DEG C, will launch by the green fresh mulberry bud (leaf) in booth into pot, Every pot of injected volume is 400--500g, and roller once throws leaf amount 10kg, hears that having slight water detonans is temperature appropriateness after throwing leaf. After fresh leaf is cooked, i.e., mulberry bud (leaf) is killed by (the circle broom being bundled into bamboo thatch) even with frying, prevent focus side.About 2--3 points Clock, fresh leaf soften (being commonly called as lower silk floss) when, used instead gently rub effect wrap up in a method, stir-fry handle is vertical with the bottom of a pan, make along pot wall same The circular motion in direction drives fresh leaf that direction is rolled along stir-fry.Firmly first light rear weight, rotation amplitude is first big after small, and movement is first slow It is fast afterwards.It is general to turn 15 circle left and right；Stir-fry need to be lifted bud-leaf group is shaken loose, moisture is distributed in time, prevent water bored.Turn-taking later will be gradually Gradually accelerate, turns ringlet, and gesture aggravates slightly, bud-leaf is promoted to be curled into item.About through 5--6 minutes, when fresh leaf green gas disappear, Have a faint scent evolution, about five, sixty percent it is dry when, bud-leaf is swept into connected pot.2. manage bar, shaping: the mulberry bud leaf for finishing appropriate It to be transferred to shaping in second mouthful of pot in time, while being also beneficial to improve fragrance.Suitable 70 DEG C of pot temperature -- 80 DEG C, gimmick is to stir-fry Main, early period uses the gesture of Longjing tea grab bar, and the centre of the palm is downward, and the five fingers are stretched out, firmly clap pressure it is several it is lower after, pick up and turn, Pressure is clapped again, is shaken loose, repeatedly.Later period answers manage bar to combine with trembling throwing, the shaping when frying, about through 5 minutes, when bud-leaf weightlessness exists It takes the dish out of the pot when 45%--50%.3. baking: tool bamboo hand-held basketwork brazier, fuel chestnut charcoal.It bakes and banks up with earth and is divided to two stages of gross fire and final firing.Just Dry and use gross fire, temperature is 100 DEG C -- 110 DEG C, by the thin booth of bud-leaf on hand-held basketwork brazier, grasp high temperature is frequently turned over, and prevents focus side, about seven At it is dry when, lower baking spreading for cooling 1--2 hours, then carry out final firing baking, dried slowly using mild fire, dry top temperature be 50 DEG C -- 60 DEG C, in Between still need to turn over leaf, it is irregular to prevent dry and wet, it is dry to be dried to foot.Such as measuring can also be baked greatly with existing function drying stove for silkworm cocoon, gross fire, final firing one into Row, temperature are controlled at 70 DEG C -- and 100 DEG C, when baking will frequently turn over, turn over fastly, even turn over.When gross fire rests in dry very likely, carried out after spreading for cooling Sufficient fire drying.Bud-leaf hand rubbing is dried into powder, vein is in crab cream color, appears in the least, has peat-reek to be advisable.Water content exists at this time 5% hereinafter, by spreading for cooling, fastidious, classification, packaging, storage or sale.By tealeaves made from the application method not only mouthfeel, Taste is all good, and meets the requirement of Se content 0.2-5ppm in GB/T21729.

Claims (10)

1. a kind of method for preparing selenium-rich Mulberry-leaf Tea, which comprises the following steps: 1, picking；2, Qie Ye, booth are green；3, Parch, wherein step 3 parch include: finish, rub, manage bar, shaping, baking, last tealeaves water content be not higher than 5%.

2. the method as described in claim 1, which is characterized in that when step 2, containing having the following steps: the mulberry leaf being collected are spread out It puts, spreading the time is 4--6 hour, and centre is stirred once, until bud-leaf withers soft naturally, gloss enters next step when gradually losing turn dark.

3. the method as described in any one of claim 1,2, which is characterized in that the water-removing of step 3, to rub include: that will pass through The green tealeaves in booth is put into water-removing pot, and temperature is adjusted to 120-140 degrees Celsius or in the case of variation of ambient temperature is larger Controlled at hearing that slight water detonans sound is preference temperature, fries after cooking to fresh leaf and soften and there is no focus side, above-mentioned steps Time was at 2-3 minutes.

4. the method according to claim 1, which is characterized in that manage bar, the shaping of step 3 include: that use is fried general Fresh leaf group shakes loose, and turn-takes, until fresh leaf green gas disappear, faint scent overflow, and 5 sixty percent it is dry when, fresh leaf is swept into another adjacent pot In, it stir-fries by hand, fresh leaf is picked up, pressure is clapped, is shaken loose until fresh leaf weightlessness 45-50%.

5. the method according to claim 1, which is characterized in that the baking of step 3 includes: using hand-held basketwork brazier and charcoal Fuel is baked.

6. method as claimed in claim 5, which is characterized in that hand-held basketwork brazier uses bamboo hand-held basketwork brazier.

7. method as claimed in claim 6, which is characterized in that charcoal uses chestnut charcoal.

8. such as the described in any item methods of claim 6-7, which is characterized in that baking step uses gross fire, final firing two stages, dries Overturning is carried out during roasting keeps it uniformly weightless.

9. method according to claim 8, which is characterized in that in baking gross fire to seven to eighty per cant it is dry after carry out sufficient fire dryings.

10. the tealeaves of any the method preparation of claim 1-9.