CN105454472A - Processing and production method of eucommia-leave tea - Google Patents

Abstract

The invention discloses a processing and production method of eucommia-leave tea. The invention is characterized in that the processing and production method comprises the following nine major steps: picking the eucommia leaves, peeling the eucommia leaves, airing the enzymes, deactivating the enzymes, air-drying, kneading, screening and classifying, refining the aroma, dehydrating and the like. The processing and production method has the beneficial effects that the leaf stems and the thick leaf veins of the fresh and tender eucommia leaves which are picked in proper season are peeled, so that the refreshing and pure taste of the eucommia-leave tea can be preserved; enzymes in the leaf stems and the thick leaf veins are further deactivated by water vapor, so that the pure aroma of the eucommia-leave tea can be further ensured; the enzyme deactivation and the air-drying are performed on a conveyer belt so that the shapes of the eucommia leaves are kept and the strips formed by the eucommia leaves are uniform in shape; the kneading is performed when the eucommia leaves are hot, so that the eucommia leaves can be better shaped and the astringent taste of the eucommia leaves is removed; and the astringent taste can be further covered by the step of refining the aroma. The eucommia-leave tea produced according to the processing and production method has the advantages that the eucommia-leave tea is uniform in appearance, jade-green in color, refreshing and thick in aroma, dark-green and transparent in tea-soup color, tender and mellow in tea-soup taste as well as exquisite and fragrant tea-soup flavor. The processing and production method greatly improves quality of the eucommia-leave tea product.

Description

A kind of processing and fabricating method of tea containing leaves of Eucommia ulmoides

Technical field

The present invention relates to Tea Processing manufacture technology field, particularly a kind of processing method of tea containing leaves of Eucommia ulmoides.

Background technology

Eucommia Tea is the leaf of the plant bark of eucommia is raw material, through traditional tea processing and the health drink that is made of prepared slices of Chinese crude drugs processing method, and product mildly bitter flavor and return sweet suitable for reading.Normal drink is good for health, and health value of having a drink before sleeping is high, without any side effects, drinks conveniently.In general, can be newly grown up at folium cortex eucommiae, when growing the most vigorous, bud be when will open, or spend in full bloom and fruit and seed is still ripe time gather, to do Eucommia Tea, wherein tender shoots Eucommia Tea quality is the highest.

Folium cortex eucommiae Free Amino Acids is few, containing a small amount of protein, be with most foodstuff like adequate proteins, namely can be hydrolyzed 8 seed amino acids detected needed by human.Expert also measured weres 15 kinds of mineral elements contained by the bark of eucommia, wherein has the trace elements such as zinc, copper, iron, and the macroelement such as calcium, phosphorus, potassium, magnesium.There is filling liver kidney, strengthening the bones and muscles, rubbish in purged body, strengthen human body cell metabolism, prevent muscle skeleton aging, balanced human's blood pressure, decomposer inner cholesterol, reduce body fat, recover blood vessel elasticity, diuresis heat-clearing, broad-spectrum antiseptic, stimulating central nervous system, improves white blood cell count, strengthens the remarkable efficacy such as body immunity.

Existing tea containing leaves of Eucommia ulmoides follows traditional method of kneading that completes, although experienced by a lot of improvement, but still there is many deficiencies, and as uneven in completed, fragrance is impure, and bar rope winding up is irregular, and tea flavour, with bitterness etc., has had a strong impact on the taste class of product.

Summary of the invention

Technical problem to be solved by this invention is a kind of processing and fabricating method providing tea containing leaves of Eucommia ulmoides for the problems referred to above, and can solve tea containing leaves of Eucommia ulmoides fragrance impure, bar rope winding up is irregular, tea flavour with the problem of bitterness, to improve the quality of tea containing leaves of Eucommia ulmoides product.

For solving the problems of the technologies described above, the technical solution adopted in the present invention is a kind of processing and fabricating method of tea containing leaves of Eucommia ulmoides, it is characterized in that comprising the steps:

(1) pluck: the bark of eucommia branch middle and upper part of plucking between the 5-6 month the raw normal homogeneity blade of green, clean by clean water; Described homogeneity blade is old tender consistent blade.

(2) shell leaf: peel off petiole and thick vein for subsequent use, stay and only contain the blade of veinlet.

(3) spread out green grass or young crops: blade is cut into the square vanelets that the length of side is 1-3cm, vanelets is positioned on the blue or green plate rail in stand and spreads 2-3 hour, spread thickness 2-3cm, every 30min stirs once gently.

(4) complete: petiole step 2 peeled off and thick vein are put in boiler to add water and hotted plate, utilize its steam to complete; Put into by vanelets on steam inactivation machine conveyer belt, at the uniform velocity drop into, evenly spread out and pave, lay thickness 1-2cm, vapor (steam) temperature 120-130 DEG C, steam pressure 0.02-0.03Mpa, steam flow is 210-220kg/h, fixation time 80-100s.

(5) wind dries: put on dryer conveyer belt the vanelets after completing with hot-air seasoning immediately, at the uniform velocity, evenly should spread out during input and pave, lay thickness 2-3cm, when putting in storage, hot blast temperature is 85-95 DEG C, when delivering from godown, hot blast temperature is 65-75 DEG C, blast is 0.02-0.03Mpa, and hot air flow is 8000-9000m3/h, and drying time is 20-30 minute.

(6) knead: vanelets is taken advantage of heat to put into kneading machine and kneaded, knead while pressurize after drying by wind, until form the folium cortex eucommiae bar rope of tight knot;

(7) sieve: remove with mesh screen and knead the impurity be mingled in folium cortex eucommiae bar rope produced in process.

(8) Titian: with the smokeless charcoal that tea tree limb or tea seed episperm make, Titian is cured to folium cortex eucommiae bar Suo Jinhang, keep temperature 65-75 DEG C under smokeless state, cure time 10-15 minute.

(9) dewater: dehydrate with dehumidifier at normal temperatures, until the moisture in folium cortex eucommiae bar rope is less than 8%, namely obtain tea containing leaves of Eucommia ulmoides.

The invention has the beneficial effects as follows and pluck fresh and tender folium cortex eucommiae in the suitable time, then petiole and thick vein is peeled off, the pure pure of tea containing leaves of Eucommia ulmoides can be kept like this, adopt petiole and thick vein water vapour to carry out steam beating, can ensure that tea containing leaves of Eucommia ulmoides fragrance is pure further; Carry out on a moving belt completing and wind baking, can blade shape be kept, and the bar rope making it be formed is uniform; Taking advantage of heat to carry out kneading can better moulding the astringent taste removed in folium cortex eucommiae, can cover astringent taste further after Titian; The tea containing leaves of Eucommia ulmoides outward appearance of such making is neat, color and luster is dark green, dark green transparent, the fresh and tender alcohol of millet paste flavour of pure abundant, the millet paste color and luster of fragrance and, the elegant perfume (or spice) of millet paste smell is strongly fragrant; Substantially increase tea containing leaves of Eucommia ulmoides product quality.

Detailed description of the invention

Below in conjunction with embodiment, the invention will be further described, and following examples are intended to the present invention instead of limitation of the invention further are described, should not limit the scope of the invention with this.

Embodiment 1.

On May 2nd, 2014, applicant research and development group plucks bark of eucommia branch middle and upper part and the raw normal blade of green, clean by clean water; According to the leaf color depth, blade is divided into always, in, tender three class homogeneity blades; Then peel off petiole and thick vein, and collect petiole and thick vein is for subsequent use, leave the blade only containing veinlet.

Then blade is cut into the square vanelets that the length of side is 1cm, vanelets is positioned on the blue or green plate rail in stand and spreads 2 hours, spread thickness 2cm, stir gently once every 30min.

Again the petiole of stripping and thick vein are put in boiler to add water and hot plate, utilize the steam produced in boiler to complete; Put into by vanelets on the conveyer belt of steam inactivation machine, at the uniform velocity drop into, evenly spread out and pave, lay thickness 1cm after dropping into, steam regulation temperature 120 DEG C, steam pressure 0.02Mpa, steam flow is 210kg/h, fixation time 80s.

With hot-air seasoning on the conveyer belt again vanelets after completing being put into immediately dryer, at the uniform velocity, evenly should spread out during input and pave, lay thickness 2cm, when putting in storage, hot blast temperature is 85 DEG C, when delivering from godown, hot blast temperature is 65 DEG C, blast is 0.02Mpa, and hot air flow is 8000m3/h, and drying time is 20 minutes.

After wind dries, take advantage of heat that vanelets is put into kneading machine and knead, knead while pressurize, until form the folium cortex eucommiae bar rope of tight knot; Then be separated to remove with mesh screen and knead the impurity be mingled in folium cortex eucommiae bar rope produced in process.

Then with the smokeless charcoal that tea tree limb or tea seed episperm make, Titian is cured to folium cortex eucommiae bar Suo Jinhang, under smokeless state, keep temperature 65 DEG C, cure 10 minutes time; Then dewater with dehumidifier at normal temperatures, until the moisture in folium cortex eucommiae bar rope is less than 8%, namely obtain tea containing leaves of Eucommia ulmoides.

Embodiment 2.

On May 30th, 2014, applicant research and development group plucks bark of eucommia branch middle and upper part and the raw normal blade of green, clean by clean water; According to the leaf color depth, blade is divided into always, in, tender three class homogeneity blades; Then peel off petiole and thick vein, and collect petiole and thick vein is for subsequent use, leave the blade only containing veinlet.

Then blade is cut into the square vanelets that the length of side is 2cm, vanelets is positioned on the blue or green plate rail in stand and spreads 2.5 hours, spread thickness 2.5cm, stir gently once every 30min.

Again the petiole of stripping and thick vein are put in boiler to add water and hot plate, utilize the steam produced in boiler to complete; Put into by vanelets on the conveyer belt of steam inactivation machine, at the uniform velocity drop into, evenly spread out and pave, lay thickness 1.5cm after dropping into, steam regulation temperature 125 DEG C, steam pressure 0.025Mpa, steam flow is 215kg/h, fixation time 90s.

With hot-air seasoning on the conveyer belt again vanelets after completing being put into immediately dryer, at the uniform velocity, evenly should spread out during input and pave, lay thickness 2.5cm, when putting in storage, hot blast temperature is 90 DEG C, when delivering from godown, hot blast temperature is 70 DEG C, blast is 0.025Mpa, and hot air flow is 8500m3/h, and drying time is 25 minutes.

After wind dries, take advantage of heat that vanelets is put into kneading machine and knead, knead while pressurize, until form the folium cortex eucommiae bar rope of tight knot; Then be separated to remove with mesh screen and knead the impurity be mingled in folium cortex eucommiae bar rope produced in process.

Then with the smokeless charcoal that tea tree limb or tea seed episperm make, Titian is cured to folium cortex eucommiae bar Suo Jinhang, under smokeless state, keep temperature 70 C, cure 12.5 minutes time; Then dewater with dehumidifier at normal temperatures, until the moisture in folium cortex eucommiae bar rope is less than 8%, namely obtain tea containing leaves of Eucommia ulmoides.

Embodiment 3.

On June 25th, 2014, applicant research and development group plucks bark of eucommia branch middle and upper part and the raw normal blade of green, clean by clean water; According to the leaf color depth, blade is divided into always, in, tender three class homogeneity blades; Then peel off petiole and thick vein, and collect petiole and thick vein is for subsequent use, leave the blade only containing veinlet.

Then blade is cut into the square vanelets that the length of side is 3cm, vanelets is positioned on the blue or green plate rail in stand and spreads 3 hours, spread thickness 3cm, stir gently once every 30min.

Again the petiole of stripping and thick vein are put in boiler to add water and hot plate, utilize the steam produced in boiler to complete; Put into by vanelets on the conveyer belt of steam inactivation machine, at the uniform velocity drop into, evenly spread out and pave, lay thickness 2cm after dropping into, steam regulation temperature 130 DEG C, steam pressure 0.03Mpa, steam flow is 220kg/h, fixation time 100s.

With hot-air seasoning on the conveyer belt again vanelets after completing being put into immediately dryer, at the uniform velocity, evenly should spread out during input and pave, lay thickness 3cm, when putting in storage, hot blast temperature is 95 DEG C, when delivering from godown, hot blast temperature is 75 DEG C, blast is 0.03Mpa, and hot air flow is 9000m3/h, and drying time is 30 minutes.

After wind dries, take advantage of heat that vanelets is put into kneading machine and knead, knead while pressurize, until form the folium cortex eucommiae bar rope of tight knot; Then be separated to remove with mesh screen and knead the impurity be mingled in folium cortex eucommiae bar rope produced in process.

Then with the smokeless charcoal that tea tree limb or tea seed episperm make, Titian is cured to folium cortex eucommiae bar Suo Jinhang, under smokeless state, keep temperature 75 DEG C, cure 15 minutes time; Then dewater with dehumidifier at normal temperatures, until the moisture in folium cortex eucommiae bar rope is less than 8%, namely obtain tea containing leaves of Eucommia ulmoides.

The tea containing leaves of Eucommia ulmoides that the tea containing leaves of Eucommia ulmoides of embodiment 1,2,3 production and market are bought is carried out sensory, and have producers 3, tea ceremony teacher 3 in evaluation people, consumer 15, review result is as following table.

Tea containing leaves of Eucommia ulmoides sensory key element and score comparison sheet

Product	Dry dark brown pool	Dry tea fragrance	Millet paste color and luster	Millet paste flavour	Millet paste fragrance
						Embodiment 1	Dark green 90	Pure 87	Dark green transparent 88	Fresh and tender alcohol and 78	Elegant perfume (or spice) strongly fragrant 90
Embodiment 2	Dark green 93	Pure 88	Dark green transparent 91	Fresh and tender alcohol and 79	Elegant perfume (or spice) strongly fragrant 92
						Embodiment 3	Dark green 88	Pure 86	Dark green transparent 86	Fresh and tender alcohol and 77	Elegant perfume (or spice) strongly fragrant 88
Market is bought	Dark green 70	Pure 70	Dark green transparent 68	Fresh and tender alcohol and 61	Elegant perfume (or spice) strongly fragrant 73

The effect of visible embodiment 2 is best, dark green transparent, the fresh and tender alcohol of millet paste flavour of pure abundant, the millet paste color and luster of its dark green, fragrance of tea containing leaves of Eucommia ulmoides color and luster produced and, the elegant perfume (or spice) of millet paste smell is strongly fragrant; Product quality obtains and greatly improves.

Claims (1)

1. a processing and fabricating method for tea containing leaves of Eucommia ulmoides, is characterized in that comprising the steps:

(1) pluck: the bark of eucommia branch middle and upper part of plucking between the 5-6 month the raw normal homogeneity blade of green, clean by clean water; Described homogeneity blade is old tender consistent blade;

(2) shell leaf: peel off petiole and thick vein for subsequent use, stay and only contain the blade of veinlet;

(3) spread out green grass or young crops: blade is cut into the square vanelets that the length of side is 1-3cm, vanelets is positioned on the blue or green plate rail in stand and spreads 2-3 hour, spread thickness 2-3cm, every 30min stirs once gently;

(4) complete: petiole step 2 peeled off and thick vein are put in boiler to add water and hotted plate, utilize its steam to complete; Put into by vanelets on steam inactivation machine conveyer belt, at the uniform velocity drop into, evenly spread out and pave, lay thickness 1-2cm, vapor (steam) temperature 120-130 DEG C, steam pressure 0.02-0.03Mpa, steam flow is 210-220kg/h, fixation time 80-100s;

(5) wind dries: put on dryer conveyer belt the vanelets after completing with hot-air seasoning immediately, at the uniform velocity, evenly should spread out during input and pave, lay thickness 2-3cm, when putting in storage, hot blast temperature is 85-95 DEG C, when delivering from godown, hot blast temperature is wind 65-75 DEG C, blast is 0.02-0.03Mpa, and hot air flow is 8000-9000m3/h, and drying time is 20-30 minute;

(6) knead: vanelets is taken advantage of heat to put into kneading machine and kneaded, knead while pressurize after drying by wind, until form the folium cortex eucommiae bar rope of tight knot;

(7) sieve: remove with mesh screen and knead the impurity be mingled in folium cortex eucommiae bar rope produced in process;

(8) Titian: with the smokeless charcoal that tea tree limb or tea seed episperm make, Titian is cured to folium cortex eucommiae bar Suo Jinhang, keep temperature 65-75 DEG C under smokeless state, cure time 10-15 minute;

(9) dewater: dehydrate with dehumidifier at normal temperatures, until the moisture in folium cortex eucommiae bar rope is less than 8%, namely obtain tea containing leaves of Eucommia ulmoides.