CN105394262A - Ziziphus jujuba tea preparation method - Google Patents
Ziziphus jujuba tea preparation method Download PDFInfo
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- CN105394262A CN105394262A CN201410461606.5A CN201410461606A CN105394262A CN 105394262 A CN105394262 A CN 105394262A CN 201410461606 A CN201410461606 A CN 201410461606A CN 105394262 A CN105394262 A CN 105394262A
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Abstract
The present invention belongs to the technical field of food processing, and relates to a ziziphus jujuba tea processing method. The technical scheme comprises: raw material treatment: selecting dried ziziphus jujuba, washing, drying, carrying out denucleation, cutting into blocks, carrying out water mist spraying, carrying out cold soaking, placing into a cold storage, and rapidly freezing, wherein the temperature of the cold storage is controlled at 5 to -15 DEG C; and microwave puffing: placing the treated ziziphus jujuba block raw material onto a microwave oven conveying belt, arranging in a single layer manner, adjusting the conveying belt speed to 1 m/min, adjusting the microwave oven power to 30 kW, heating for 15 min, and puffing. According to the present invention, the microwave and the ziziphus jujuba can directly interact to carry out the consistent internal and surface whole body heating, such that the heating is rapid, the time is short, the heating is uniform, and the dissolution rate of the active substance is improved; and the disadvantages of high energy consumption, reducing sugar content reducing, and pulp bitterness caused by the polysaccharide loss of the high temperature puffing are overcome, the energy is saved, the puffing efficiency is improved, and polysaccharides, flavone, saponins and other active substances in the ziziphus jujuba are retained.
Description
Technical field
The invention belongs to food processing technology field, relate to a kind of processing method of jujube tea.
Background technology
Date is tasty, nutritious.Date contains the nutritional labeling such as abundant sugar, vitamin, protein, amino acid and trace element, alkaloid, saponin(e, flavones, and especially Vitamin C content is very high.Therefore often eating date can prevention and therapy hypertension and angiocardiopathy effectively.Flavones a pair of one glucoside A contained in date has calmness, hypnosis and hypotensive effect; Class planted by naringenin C sugar wherein central inhibitory action, has both reduced autogenic movement and has stimulated reflex, tetanic numb effect, so date have calm the nerves, the merit of calmness.
Tradition jujube tea often adopts high temperature puffing technology differential pressure puffing technique.High temperature puffing can damage the nutritional labeling in jujube, and especially amino acid, protein are easily high-temperature denatured.In addition, these two kinds of puffing techniques can not increase jujube internal surface area to greatest extent, so the dissolution rate of nutriment is low especially; High temperature and pressure-difference and puffing can take higher for equipment, place, and power consumption is large.
Along with the development of food industry, new technology and the appearance of new technology and the raising of people's living standard, bulking process technology, bulking equipment be the inevitable future development to low oil more popular to people, natural prodcuts also.
Summary of the invention
The object of this invention is to provide a kind of jujube tea processing technology thereof, solve high, the process Middle nutrition of traditional jujube tea preparation power consumption run off large, make tea in the problem such as the bitter shortcoming of effectively nutriment dissolution rate is low, content of reducing sugar reduces, polysaccharide loss causes pulp.
The object of this patent is to provide a kind of jujube tea processing technology thereof, overcome the shortcoming that high, that content of reducing sugar reduces, polysaccharide loss the causes pulp of high temperature puffing power consumption in the processing of conventional jujube is bitter, efficient energy-saving, improve expanded efficiency, fully remain the polysaccharide in jujube, flavones, saponin(e isoreactivity material.
For achieving the above object, the technical scheme that this patent adopts is:
The preparation method of jujube tea, is characterized in that, comprises the following steps,
Feedstock treating: get and select dry jujube, through cleaning, oven dry, stoning, stripping and slicing, water mist spray, cold soaking, then puts into freezer quick-frozen, controls temperature of ice house 5 DEG C ~-15 DEG C;
Microwave bulking: be positioned on micro-wave oven conveyer belt by the jujube block raw material after process, individual layer is arranged, and regulates line speed 1m/min, and adjustment microwave power 30kw, is heated and carries out expanded in 15 minutes.
As preferably, described oven dry adopts far infrared baking oven, only removes the transepidermal water of jujube.
As preferably, described stripping and slicing is that vertical section is on average cut into four pieces.
As preferably, after described water mist spray, the water content of jujube reaches 45%.
As preferably, described jujube block raw material individual layer is placed on pallet, through 5 ~ 0 DEG C of water mist spray are cold ooze after, carrying out quick freezing temperature is-10 DEG C ~-15 DEG C
As preferably, described microwave bulking adopts power to be the microwave dryer of 30kw, and adjustment line speed is 1m/min, and microwave power is 30kw, and heated time is 15min.
As preferably, the water content of the jujube tea after expanded is 13-15%.
What this patent was most crucial is utilize microwave bulking technology.Microwave bulking technology is the conduct radiation by electromagnetic energy, makes hydrone absorb microwave energy and produces molecule pole shake acquisition kinetic energy, realize the vaporization of moisture, and then drive the entirety of raw material expanded.
Microwave applications has the following advantages in jujube tea processing tool: heating using microwave is that the entirety of carrying out surface consistent with inside by microwave energy and jujube direct interaction heats, firing rate is fast, the time is short, product quality is high, homogeneous heating, and heating process has automatic thermal balance performance, be quick on the draw and be easy to control, the thermal efficiency is high, and occupation area of equipment is few etc.Utilize microwave bulking jujube tea can overcome the shortcoming that traditional fried puffing technique processing is unhygienic, fat content is high, improve the dissolution rate of active principle, not containing hardening agent and anticorrisive agent.Also overcome the shortcoming that high, that content of reducing sugar reduces, polysaccharide loss the causes pulp of high temperature puffing power consumption is bitter, efficient energy-saving, improves expanded efficiency, fully remains the polysaccharide in jujube, flavones, saponin(e isoreactivity material simultaneously.
Detailed description of the invention
The present invention solves the technical scheme that its technical problem takes: selected date, after stripping and slicing, adopts the method for microwave bulking must save the nutritional labeling of jujube to greatest extent, and can increase jujube tea nutritional labeling dissolution rate; Jujube tea is more pure and fresh, fragrant and sweet pleasant, and the jujube be flooded can directly eat, and taste is fragrant and sweet good to eat.
Below in conjunction with specific embodiment, the invention will be further described:
The preparation method of jujube tea, comprises the following steps,
Feedstock treating: get and select dry jujube, through cleaning, oven dry, stoning, stripping and slicing, water mist spray, cold soaking, then puts into freezer quick-frozen, controls temperature of ice house 5 DEG C ~-15 DEG C;
Microwave bulking: be positioned on micro-wave oven conveyer belt by the jujube block raw material after process, individual layer is arranged, and regulates line speed 1m/min, and adjustment microwave power 30kw, is heated and carries out expanded in 15 minutes.
According to the preparation method of described jujube tea, described oven dry adopts far infrared baking oven, removes the transepidermal water of jujube.
According to the preparation method of described jujube tea, described stripping and slicing is that vertical section is on average cut into four pieces.
According to the preparation method of described jujube tea, after described water mist spray, the water content of jujube reaches 45%.
According to the preparation method of described jujube tea, described jujube block raw material individual layer is placed on pallet, through 5 ~ 0 DEG C of water mist spray are cold ooze after, carrying out quick freezing temperature is-10 DEG C ~-15 DEG C
According to the preparation method of described jujube tea, described microwave bulking adopts power to be the microwave dryer of 30kw, and adjustment line speed is 1m/min, and microwave power is 30kw, and heated time is 15min.
According to the preparation method of described jujube tea, it is characterized in that, the water content of the jujube tea after expanded is 13-15%.
Embodiment 1
1. Feedstock treating:
(1) get selected dry jujube, put into container, the dirt of water filling clean surface and remains of pesticide,
(2) with hot-air seasoning, the moisture on fructus corni surface is removed,
(3) after stoning by dry jujube stripping and slicing, on average be cut into four pieces at vertical section along jujube inner vein, while must increasing surface area to greatest extent, ensure mouthfeel,
(4) water mist spray jujube block, till jujube surface forms the fine and closely woven globule (jujube water content is 45%).Too much water can not be sprayed, prevent carbohydrate and other water-soluble nutritional labeling strippings, prevent jujube from luming when freezing,
(5) put into freezer after wetting, jujube through 5 ~ 0 DEG C cold ooze after, carrying out quick freezing temperature is-10 DEG C ~-15 DEG C.Control temperature of ice house be treat after 5 ~-15 DEG C expanded.
2. microwave bulking:
(1) the jujube block individual layer after freezing is positioned on drip pan, increases heating surface area.Drip pan is placed on the conveyer belt of Ke Wei-30 microwave bulking machine,
(2) regulate line speed to be 1m/min ~ 1.3m/min, microwave power is 29kw ~ 32kw, and period needs four hydrofuge process, lays respectively at and transmits tape leader section, 1/3 place, 2/3 place, latter end,
(3) after 12min ~ 15min microwave treatment, expanded jujube tea is namely obtained,
(4) obtain that jujube tea water content is dry jujube raw material 80%, with jujube tea and the raw material jujube of equivalent 80 DEG C of emerge in worm water equivalent, through half an hour jujube tea sugar stripping quantity be 6 times of raw material jujube.
Embodiment 2
With the dry jujube of selected high-quality for raw material, take 5.1kg, remove core with stoner after cleaning-drying after, vertical section is cut to four pieces of identical, similar size, and single flat is layered on pallet, carries out soaking to there is the tiny globule on jujube block surface with water smoke.Proceed to freezer, jujube through 5 ~ 0 DEG C cold ooze after, carry out quick freezing temperature be treat after-10 DEG C ~-15 DEG C expanded.
Be placed on drip pan by jujube block, individual layer is arranged.Adjustment line speed is 1m/min, and microwave power is 30kw.Expanded, hydrofuge through four processes is mutual, obtains the jujube tea of 3.92kg.
The dissolution rate that the finished product of this product uses anthrone colorimetry to measure jujube tea is 3 degree, and dry jujube is dissolution rate 0.5 degree, and jujube tea sugar stripping quantity is 6 times of raw material jujube.
Claims (7)
1. a preparation method for jujube tea, is characterized in that, comprises the following steps, Feedstock treating: get and select dry jujube, through cleaning, oven dry, stoning, stripping and slicing, water mist spray, cold soaking, then puts into freezer quick-frozen, controls temperature of ice house 5 DEG C ~-15 DEG C; Microwave bulking: be positioned on micro-wave oven conveyer belt by the jujube block raw material after process, individual layer is arranged, and regulates line speed 1m/min, and adjustment microwave power 30kw, is heated and carries out expanded in 15 minutes.
2. the preparation method of jujube tea according to claim 1, is characterized in that, described oven dry adopts far infrared baking oven, removes the transepidermal water of jujube.
3. the preparation method of jujube tea according to claim 1, is characterized in that, described stripping and slicing is that vertical section is on average cut into four pieces.
4. the preparation method of jujube tea according to claim 1, is characterized in that, after described water mist spray, the water content of jujube reaches 45%.
5. the preparation method of jujube tea according to claim 1, is characterized in that, described jujube block raw material individual layer is placed on pallet, through 5 ~ 0 DEG C of water mist spray are cold ooze after, carrying out quick freezing temperature is-10 DEG C ~-15 DEG C.
6. the preparation method of jujube tea according to claim 1, is characterized in that, described microwave bulking adopts power to be the microwave dryer of 30kw, and adjustment line speed is 1m/min, and microwave power is 30kw, and heated time is 15min.
7. the preparation method of jujube tea according to claim 1, is characterized in that, the water content of the jujube tea after expanded is 13-15%.
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| CN201410461606.5A CN105394262A (en) | 2014-09-12 | 2014-09-12 | Ziziphus jujuba tea preparation method |
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| CN201410461606.5A CN105394262A (en) | 2014-09-12 | 2014-09-12 | Ziziphus jujuba tea preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106106949A (en) * | 2016-08-12 | 2016-11-16 | 宁德市奇隆翔农业有限公司 | A kind of flower tea of looks improving and the skin nourishing and preparation method thereof |
| CN107183505A (en) * | 2017-06-08 | 2017-09-22 | 界首市民杰种植专业合作社 | A kind of winter jujube deep working method |
| CN108464463A (en) * | 2018-03-02 | 2018-08-31 | 宁夏中玺枣业股份有限公司 | Instant jujube and processing method |
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| CN101352194A (en) * | 2008-08-25 | 2009-01-28 | 河南省新郑奥星实业有限公司 | Red dates tea and preparation method thereof |
| CN103549269A (en) * | 2013-11-08 | 2014-02-05 | 艾启俊 | Preparation method for novel convenient jumble bead porridge |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352194A (en) * | 2008-08-25 | 2009-01-28 | 河南省新郑奥星实业有限公司 | Red dates tea and preparation method thereof |
| CN103549269A (en) * | 2013-11-08 | 2014-02-05 | 艾启俊 | Preparation method for novel convenient jumble bead porridge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106106949A (en) * | 2016-08-12 | 2016-11-16 | 宁德市奇隆翔农业有限公司 | A kind of flower tea of looks improving and the skin nourishing and preparation method thereof |
| CN107183505A (en) * | 2017-06-08 | 2017-09-22 | 界首市民杰种植专业合作社 | A kind of winter jujube deep working method |
| CN108464463A (en) * | 2018-03-02 | 2018-08-31 | 宁夏中玺枣业股份有限公司 | Instant jujube and processing method |
| CN108464463B (en) * | 2018-03-02 | 2021-05-25 | 天津农科食品生物科技有限公司 | Instant red date and processing method |
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Application publication date: 20160316 |