CN102986956B

CN102986956B - Method for producing low-fluorine brick tea by adding edible biological materials

Info

Publication number: CN102986956B
Application number: CN201310001110.5A
Authority: CN
Inventors: 何春雷; 魏晓惠; 胡燕; 张莹; 余正伦
Original assignee: SICHUAN PROVINCE YAAN CITY PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE; Sichuan Agricultural University
Current assignee: SICHUAN PROVINCE YAAN CITY PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE; Sichuan Agricultural University
Priority date: 2013-01-04
Filing date: 2013-01-04
Publication date: 2014-11-26
Anticipated expiration: 2033-01-04
Also published as: CN102986956A

Abstract

The invention discloses a method for producing low-fluorine edge tea by adding edible biological materials. The finished product of high-fluorine edge tea is selected, edible biological materials are added, mixed and steamed to make tea bricks; or high-fluorine edge tea raw materials are selected, and edible biological materials are added. Make water, pile ferment, dry, and steam press to make tea bricks. The biological material adopted in the invention is non-toxic, thereby completely avoiding the safety problem caused by drinking side tea due to the pollution of chemical reagents. Because the dried jasmine flower or mulberry leaf, the biological material, not only has the effect of reducing fluoride by dilution, but also has the effect of reducing fluoride by adsorption, which provides a new way for the production of low-fluorine edge tea. The biological material used can not only improve the flavor of the edge tea, but also endow the edge tea with new health functions.

Description

A kind of method of adding food organism manufacture of materials low fluorine brick tea

Technical field

The invention belongs to Tea Production technical field, relate in particular to a kind of method of adding food organism manufacture of materials low fluorine brick tea.

Background technology

Because the tea raw material that traditional limit tea adopts is slightly old, fluorinated volume is higher, generally, in 600mg/kg left and right, add top tea and adopt traditional infusion drinking way, fluorine extraction rate is high, generally more than 80%, and national compatriot's amount of drinking tea is large, reach 10kg/ left and right for each person every year, cause limit tea traditional consumption person day to take the photograph fluorine amount too high, substantially exceed the limit standard of 4mg for each person every day, general, typical " drinking brick-tea type fluorosis " phenomenon have occurred in ethnic mimority area.And reduce the amount of drinking tea, and reduce the absorption of fluorine, can cause the other problemses such as highlands crowd's digestive difficulties, use other teas instead, can increase the weight of highlands life crowd's hypoxia response.

At present, produce low fluorine brick tea in order to reduce limit tea fluorinated volume, mainly adopt: 1. improve the tender degree of limit tea, reduce fluorinated volume, not only greatly increase cost, cause caffeine content to raise simultaneously, can increase the weight of altitude sickness; 2. in the tea of limit, add and fall fluorine chemistry reagent, though can reduce the fluorinated volume of limit tea finished product, can cause the residual of chemical composition, cause the problems such as poor stability; 3. in millet paste, add and fall fluorine reagent, filtering and concentrating is produced instant low fluorine tea powder and low fluorine tea cream, but production cost and price are higher, and has changed that national compatriot brews or the tea drinking habit of infusion, and product promotion difficulty is large; 4. add aborning the microbe additives such as EM, but fluoro droping effect is unstable, and microbial metabolic products leaves in tea, have potential potential safety hazard; 5. in the tea production process of limit, the method into tea stalk, sheet end is spelled in employing, though can reduce the fluorinated volume of finished product limit tea, but high fluorine limit tea raw material digestion is limited (taking the limit tea raw material of fluorinated volume 600mg/kg as example, can only spell into 20% at most), and affected limit tea local flavor, on producing, be difficult to grasp and complex operation.

Summary of the invention

The present invention adopts in the tea production process of limit, adds edible biomaterial as dry in mulberry leaf, Jasmine etc., reaches the safe for drinking that can guarantee consumer, can reduce again the method that a kind of low fluorine brick tea of limit tea fluorinated volume is produced.

The embodiment of the present invention is achieved in that a kind of method of adding food organism manufacture of materials low fluorine brick tea, chooses high fluorine limit tea finished product, adds food organism material, and mixed steam steam pressure is made brick tea; Or choose high fluorine limit tea raw material, and add food organism material, flood, pile-fermentation, dry, decatize is pressed into brick tea.

Further, concrete technology flow process is:

The first step is chosen high fluorine limit tea raw material, chooses the high fluorine limit tea semi-finished product that meet national tea hygienic standard requirement;

Second step adds biomaterial, takes above-mentioned satisfactory tea raw material 1000kg, and the dry or mulberry leaf of Jasmine after adding 10～20% to chop up, fully mix;

Second step floods, and by the above-mentioned tealeaves mixing, the temperature of sprinkling 30～40% is the hot water of 40～60 DEG C, and mix is even;

The 3rd step decatize, heat are rubbed, by above-mentioned add water and mix after tealeaves, adopt the steamed 5～10 minutes of 0.2～0.3mPa, then in kneading machine, heat is rubbed 20～30 minutes while hot, makes tea bar convolution;

The 4th step pile-fermentation, tealeaves after heat is rubbed is piled into the square tea heap of high 1～1.2 meter high while hot, surrounding is tamped and is added a cover wet cloth and is incubated, in the time that core temperature rises to 65 DEG C, open drop cloth turning, heap face ploughs under pile core, again flock together again as stated above, continue wet heap, turning, flock together, 3～4 times repeatedly, until tealeaves changes the red soup of brown leaf into for appropriateness;

The 5th step is dry, the tealeaves after pile-fermentation appropriateness is carried out to fried dry or dry to water content 10% left and right;

The 6th step vapour steam-pressing brisk, according to every brick 500g weigh dry after tealeaves, pass into the steam 30～60 seconds of 0.2～0.3mPa, make after tealeaves deliquescing, pour extrusion forming in brick tea mould into, cooling rear taking-up is dried to water content and below 8%, is low-fluorine brick tea in the drying room of 70～80 DEG C.

Further, the method also comprises the method for preparing low-fluorine brick tea taking limit tea finished product as raw material, and concrete steps are:

The high fluorine of first step limit tea finished product, chooses the high fluorine limit tea finished product that meets national tea hygienic standard, meet limit tea local flavor requirement as the raw material of preparing low-fluorine brick tea;

Second step adds biomaterial, takes above-mentioned satisfactory tea raw material 1000kg, adds the dry or mulberry leaf of Jasmine after 10～20% chop up, fully mixes;

Second step vapour steam-pressing brisk, according to every brick 500g weigh dry after tealeaves, pass into the steam 30～60 seconds of 0.2～0.3mPa, make after tealeaves deliquescing, pour extrusion forming in brick tea mould into, cooling rear taking-up is dried to water content and below 8%, is low fluorine brick tea in the drying room of 70～80 DEG C.

Beneficial effect of the present invention:

1. the biomaterial adopting is nontoxic, thereby has avoided the pollution due to chemical reagent completely, and produce drink the safety issue that limit tea causes.

2. because biomaterial Jasmine is dry or mulberry leaf, not only there is dilution fluoro droping effect, and there is absorption fluoro droping effect, for low fluorine brick tea is provided by the new approach that provides.

3. the biomaterial adopting not only can improve limit tea local flavor, and has given limit tea new health care.

Brief description of the drawings

Fig. 1 is the process chart of preparing low fluorine brick tea technical scheme taking semi-finished product as raw material that the embodiment of the present invention provides;

Fig. 2 is the process chart of preparing low-fluorine brick tea taking limit tea finished product as raw material that the embodiment of the present invention provides.

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Embodiment 1: prepare low fluorine brick tea technical scheme taking semi-finished product as raw material

The high fluorine of first step limit tea raw material

Choose the high fluorine limit tea semi-finished product that meet national tea hygienic standard requirement.

Second step adds biomaterial

Take above-mentioned satisfactory tea raw material 1000kg, the dry or mulberry leaf of Jasmine after adding 10～20% to chop up, fully mix.

Second step floods

By the above-mentioned tealeaves mixing, the temperature of sprinkling 30～40% is the hot water of 40～60 DEG C, and mix is even.

The 3rd step decatize, heat are rubbed

By above-mentioned add water and mix after tealeaves, adopt the steamed 5～10 minutes of 0.2～0.3mPa, then in kneading machine, heat is rubbed 20～30 minutes while hot, makes tea bar convolution.

The 4th step pile-fermentation

Tealeaves after heat is rubbed is piled into the square tea heap of high 1～1.2 meter high while hot, surrounding is tamped and is added a cover wet cloth and is incubated, in the time that core temperature rises to 65 DEG C, open drop cloth turning, heap face ploughs under pile core, again flocks together as stated above again, continues wet heap, turning, flocks together, 3～4 times repeatedly, until tealeaves changes the red soup of brown leaf into for appropriateness.

The 5th step is dry

Tealeaves after pile-fermentation appropriateness is carried out to fried dry or dry to water content 10% left and right.

The 6th step vapour steam-pressing brisk

According to every brick 500g weigh dry after tealeaves, pass into the steam 30～60 seconds of 0.2～0.3mPa, make, after tealeaves deliquescing, to pour extrusion forming in brick tea mould into, cooling rear taking-up is dried to water content and below 8%, is low-fluorine brick tea in the drying room of 70～80 DEG C.

Embodiment 2: prepare low-fluorine brick tea taking limit tea finished product as raw material

The high fluorine of first step limit tea finished product

Choose the high fluorine limit tea finished product that meets national tea hygienic standard, meet limit tea local flavor requirement as the raw material of preparing low-fluorine brick tea.

Second step adds biomaterial

Take above-mentioned satisfactory tea raw material 1000kg, add the dry or mulberry leaf of Jasmine after 10～20% chop up, fully mix.

Second step vapour steam-pressing brisk

According to every brick 500g weigh dry after tealeaves, pass into the steam 30～60 seconds of 0.2～0.3mPa, make, after tealeaves deliquescing, to pour extrusion forming in brick tea mould into, cooling rear taking-up is dried to water content and below 8%, is low fluorine brick tea in the drying room of 70～80 DEG C.

Complete experimental study of the present invention:

1, Jasmine does and the impact of mulberry leaf on fluoro droping effect

In the tea of limit, add the dry and mulberry leaf of edible biomaterial Jasmine, fall fluorine result of study in table 1, table 2:

Table 1 adds the limit tea fluoro droping effect of Jasmine slag

Table 2 adds the limit tea fluoro droping effect of mulberry leaf

As can be seen here, Jasmine is dry to play diluting effect except fluorinated volume own is extremely low with mulberry leaf, can also play the effect of falling fluorine of adsorbing.

2, add the impact of biomaterial opposite side tea quality

In the tea of limit, add respectively the dry and mulberry leaf of 15% Jasmine, carry out organoleptic quality qualification, the results are shown in Table 3:

Table 3: add the impact of biomaterial opposite side tea quality

The influence factor of comprehensive opposite side tea quality adds the dry or mulberry leaf of the Jasmine of 10-20% in the tea of limit, not only can make limit tea fluorinated volume 20% left and right that declines, and also can improve the local flavor of limit tea.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims

1. A method for adding edible biological materials to produce low-fluorine edge tea, characterized in that, select high-fluorine edge tea raw materials, add edible biological materials, generate water, stack and ferment, dry, and steam press to make tea bricks;

The specific process flow is:

The first step is to select raw materials of high-fluorine edge tea, and select semi-finished products of high-fluorine edge tea that meet the requirements of national tea hygiene standards;

The second step is to add biological materials, weigh 1000 kg of the above-mentioned tea raw materials that meet the requirements, add 10-20% of dried jasmine flowers or mulberry leaves after finely chopping, and fully mix;

The third step is to make water, spray 30-40% of the above-mentioned uniformly mixed tea leaves with hot water at a temperature of 40-60°C, and mix evenly;

The fourth step is steaming and hot kneading. Steam the above-mentioned tea leaves after adding water and mixing them evenly with 0.2-0.3mPa steam for 5-10 minutes, and then knead them in a kneading machine for 20-30 minutes while they are hot, so that the tea sticks are rolled fold;

The fifth step is to ferment the heap. The hot kneaded tea leaves are piled into a square tea pile with a height of 1 to 1.2 meters. The surroundings are compacted and covered with a damp cloth to keep warm. When the temperature of the pile core rises to 65°C, the cover cloth is uncovered. Turn the pile, turn the surface of the pile into the center of the pile, and then pile up again according to the above method, continue to pile up, turn the pile, and pile together, repeat 3 to 4 times, until the tea leaves turn into brown leaf red soup;

The sixth step is drying, frying or drying the moderately fermented tea leaves to a water content of 10%;

The seventh step is to steam and press the bricks. Weigh the dried tea leaves according to 500g per brick, and pass in steam of 0.2-0.3mPa for 30-60 seconds to make the tea leaves soft. After the tea leaves are softened, pour them into brick tea molds and press them to form them. After cooling, take them out. Low-fluorine brick tea is baked in a drying room at 70-80°C until the moisture content is below 8%.