CN103461465A - Processing method of dehydrated spinach - Google Patents
Processing method of dehydrated spinach Download PDFInfo
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- CN103461465A CN103461465A CN201310408789XA CN201310408789A CN103461465A CN 103461465 A CN103461465 A CN 103461465A CN 201310408789X A CN201310408789X A CN 201310408789XA CN 201310408789 A CN201310408789 A CN 201310408789A CN 103461465 A CN103461465 A CN 103461465A
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Abstract
The invention relates to a processing method of dehydrated spinach, belonging to the technical field of food processing. The processing method comprises the following steps of selecting spinach raw materials, removing roots and cleaning, blanching and cooling, cutting by using a machine, drying, cooling, selecting by using a machine, carrying out steam explosion, drying, sorting and packaging. According to the processing method, the production efficiency can be improved, and the waste of the raw materials and the transportation cost are reduced.
Description
Technical field
The present invention relates to a kind of dehydration spinach processing method, belong to food processing technology field.
Background technology
Dehydrated vegetables refers to except a certain amount of moisture preserves the original dried product of learning through hearsay of vegetables as far as possible.The effect of dehydration is the moisture in vegetables is reduced, and improves the concentration of solable matter, suppresses microbial activities, and the activity of the contained enzyme of vegetables itself also is suppressed simultaneously, and product can long preservation.The dehydrated vegetables instant, water content is few, easily transportation, storage time is long, can effectively regulate dish and produce dull and rush season.
According to the applicant understood, there is following problem in the process of existing dehydrated vegetables:
1, generally contain the boiling manufacturing procedure in the process of dehydrated vegetables, boiling is longer process time, generally, with between hour clocking, wastes energy and the time; Simultaneously, the step after the boiling manufacturing procedure, need to can be used the cooling of the dehydrated vegetables after boiling, further wasted the energy and time.
When 2, the processing dehydrated vegetables adopts low temperature drying, need in advance the dehydrated vegetables cooling can be used, the production cycle is long, and production efficiency is low.
Summary of the invention
The technical problem that the present invention solves is: propose the dehydration spinach processing method that a kind of production efficiency is high, the method can reduce wastage of material and cost of transportation.
In order to solve the problems of the technologies described above, the technical scheme that the present invention proposes is: a kind of dehydration spinach processing method comprises the following steps:
(1) selection spinach raw material: select fresh spinach, reject the defective products in spinach;
(2) go root to clean: to cut the root of spinach with cutter, clean in cleaning machine, remove earth, little careless class impurity;
(3) blanching is cooling: the spinach 3-5 minute of hot water blanching through going root to clean by 95～100 ℃ of temperature, then pull nature out cooling;
(4) machine is cut: use cutting machine, the spinach of blanching is cut into to the spinach section;
(5) dry: will clean spinach section after drying and put into baking oven and dried, 75 ± 5 ℃ for the treatment of temperatures, 2～4 hours processing times;
(6) cooling: the spinach section after drying is used the air blast quenching, and temperature is down to below 40 ℃;
(7) machine choosing: according to the granularity requirements of product, the spinach section after the screen cloth of selection dimension is cut machine is screened, and then carries out magnetic separation, removes light impurity, metal object, powder and rectangular;
(8) steam blasting: the spinach section after the machine choosing is sent into to steam blasting device and carry out steam blasting, the pressure of steam blasting is 1.0～2MPa, temperature while controlling the steam blasting of steam blasting device is 200～250 ℃, and dimension presses 1～5 minute, and the spinach section temperature after steam blasting is room temperature;
(9) drying: collect the spinach section after steam blasting, the spinach section is placed in vacuum freeze dryer, controlling temperature is-80 ℃, and vacuum is 133 * 10
-3mBar, 2～4 hours drying times, the moisture in raw material≤7.0%;
(10) go-on-go packing: collect dried spinach section and packed.
Further improving of technique scheme is: in described (8) step, the pressure of described steam blasting is 1.0～1.6MPa, and the dimension pressure time is 1～2 minute.
Further improving of technique scheme is: in described (1) step, when spinach is collected in non-register orchard, regularly spinach is carried out to the residual sampling observation of agriculture, and according to the spinach acceptance criteria, its specification and quality are verified, reject underproof spinach raw material.
Further improving of technique scheme is: after described (10) step completes, also be provided with
Artificial selective examination: the spinach section after packing is carried out to the requirement check of material moisture, microorganism and client's appointment;
The qualified spinach section of selective examination warehouse-in is deposited: storage temperature≤12 ℃, relative humidity≤70%, warehouse for finished product need clean, drying, health, directly do not expose to sunlight, the line identifier of going forward side by side.
The invention has the beneficial effects as follows: dehydration spinach processing method of the present invention adopts steam blasting by the spinach section, transfer heat energy to mechanical energy in the process of steam blasting, lignin is separated with cellulose and the amylopectin dissolving, also supervene the physical process of the cooling of expanding simultaneously, be down to room temperature for 200～250 ℃ from explosion, can directly match with the low temperature drying operation, processing does not need to lower the temperature, save a large amount of time and the energy, realized the continuity of dehydration spinach processing.The present invention not only can enhance productivity but also can reduce wastage of material and cost of transportation.
The specific embodiment
Embodiment mono-
The dehydration spinach processing method of the present embodiment, its concrete steps are:
(1) selection spinach raw material: select fresh spinach, reject the defective products in spinach;
(2) go root to clean: to cut the root of spinach with cutter, clean in cleaning machine, remove earth, little careless class impurity;
(3) blanching is cooling: the spinach 3-5 minute of hot water blanching through going root to clean by 95～100 ℃ of temperature, then pull nature out cooling;
(4) machine is cut: use cutting machine, the spinach of blanching is cut into to the spinach section;
(5) dry: will clean spinach section after drying and put into baking oven and dried, 75 ± 5 ℃ for the treatment of temperatures, 2～4 hours processing times;
(6) cooling: the spinach section after drying is used the air blast quenching, and temperature is down to below 40 ℃;
(7) machine choosing: according to the granularity requirements of product, the spinach section after the screen cloth of selection dimension is cut machine is screened, and then carries out magnetic separation, removes light impurity, metal object, powder and rectangular;
(8) steam blasting: the spinach section after the machine choosing is sent into to steam blasting device and carry out steam blasting, the pressure of steam blasting is 1.0～2MPa, temperature while controlling the steam blasting of steam blasting device is 200～250 ℃, and dimension presses 1～5 minute, and the spinach section temperature after steam blasting is room temperature;
(9) drying: collect the spinach section after steam blasting, the spinach section is placed in vacuum freeze dryer, controlling temperature is-80 ℃, and vacuum is 133 * 10
-3mBar, 2～4 hours drying times, the moisture in raw material≤7.0%;
(10) go-on-go packing: collect dried spinach section and packed.
The dehydration spinach processing method of the present embodiment can also be spot-check after (10) step has been packed, and the spinach section after packing is carried out to the requirement check of material moisture, microorganism and client's appointment; The qualified packing spinach section of selective examination warehouse-in is deposited, material storage temperature≤12 ℃, relative humidity≤70%, warehouse for finished product need clean, drying, health, directly do not expose to sunlight, the line identifier of going forward side by side.
In addition, the dehydration spinach processing method of the present embodiment, in described (1) step, when spinach is collected in non-register orchard, needs regularly spinach to be carried out to the residual sampling observation of agriculture, and according to the spinach acceptance criteria, its specification and quality are verified, reject underproof spinach raw material.Non-register orchard in the present embodiment for not in accordance with the law to each inside the province inspection and quarantine mechanism declare the spinach planting base of putting on record.
Embodiment bis-
The dehydration spinach processing method of the present embodiment is the improvement on embodiment mono-basis, and its difference is: in described (8) step, the pressure of described steam blasting is 1.0～1.6MPa, and the dimension pressure time is 1～2 minute.The steam blasting device of the present embodiment is the numerical-control full-automatic Steam explosive machine.
Dehydration spinach processing method of the present invention is not limited to the described concrete technical scheme of above-described embodiment, and all employings are equal to the technical scheme of replacing formation and are the protection domain that the present invention requires.
Claims (4)
1. a dehydration spinach processing method comprises the following steps:
(1) selection spinach raw material: select fresh spinach, reject the defective products in spinach;
(2) go root to clean: to cut the root of spinach with cutter, clean in cleaning machine, remove earth, little careless class impurity;
(3) blanching is cooling: the spinach with the hot water blanching of 95～100 ℃ of temperature through removing root and cleaning 3～5 minutes, then pull nature out cooling;
(4) machine is cut: use cutting machine, the spinach of blanching is cut into to the spinach section;
(5) dry: will clean spinach section after drying and put into baking oven and dried, 75 ± 5 ℃ for the treatment of temperatures, processing time 2-4 hour;
(6) cooling: the spinach section after drying is used the air blast quenching, and temperature is down to below 40 ℃;
(7) machine choosing: according to the granularity requirements of product, the spinach section after the screen cloth of selection dimension is cut machine is screened, and then carries out magnetic separation, removes light impurity, metal object, powder and rectangular;
(8) steam blasting: the spinach section after the machine choosing is sent into to steam blasting device and carry out steam blasting, the pressure of steam blasting is 1.0～2MPa, temperature while controlling the steam blasting of steam blasting device is 200～250 ℃, and dimension presses 1～5 minute, and the spinach section temperature after steam blasting is room temperature;
(9) drying: collect the spinach section after steam blasting, the spinach section is placed in vacuum freeze dryer, controlling temperature is-80 ℃, and vacuum is 133 * 10
-3mBar, 2～4 hours drying times, the moisture in raw material≤7.0%;
(10) go-on-go packing: collect dried spinach section and packed.
2. dehydration spinach processing method according to claim 1, it is characterized in that: in described (8) step, the pressure of described steam blasting is 1.0～1.6MPa, the dimension pressure time is 1～2 minute.
3. dehydration spinach processing method according to claim 1, it is characterized in that: in described (1) step, when spinach is collected in non-register orchard, regularly spinach is carried out to the residual sampling observation of agriculture, and according to the spinach acceptance criteria, its specification and quality are verified, reject underproof spinach raw material.
4. dehydration spinach processing method according to claim 1, is characterized in that: after described (10) step completes, also be provided with
Artificial selective examination: the spinach section after packing is carried out to the requirement check of material moisture, microorganism and client's appointment;
The qualified spinach section of selective examination warehouse-in is deposited: storage temperature≤12 ℃, relative humidity≤70%, warehouse for finished product need clean, drying, health, directly do not expose to sunlight, the line identifier of going forward side by side.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104336157A (en) * | 2014-11-17 | 2015-02-11 | 苏州大福外贸食品有限公司 | Method for rapidly processing leaf vegetables |
| CN106879722A (en) * | 2016-12-31 | 2017-06-23 | 蚌埠清菲农业科技有限公司 | One kind dehydration spinach preparation method |
| CN107258891A (en) * | 2017-05-17 | 2017-10-20 | 安徽禾泉农庄生态农业有限公司 | A kind of fresh-keeping process technique of pleurotus eryngii |
| CN107361325A (en) * | 2016-05-11 | 2017-11-21 | 吕忠华 | A kind of spinach production line and its production method |
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| CN101156624A (en) * | 2007-11-08 | 2008-04-09 | 慈溪市蔬菜开发有限公司 | A dewatering processing method of pickled cabbage |
| CN102613503A (en) * | 2012-03-31 | 2012-08-01 | 东北林业大学 | Preparation process of water-soluble fruit and vegetable powder |
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2013
- 2013-09-10 CN CN201310408789XA patent/CN103461465A/en active Pending
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| JPH09278674A (en) * | 1996-04-16 | 1997-10-28 | Asahi Chem Ind Co Ltd | Fine cellulose dispersed liquid |
| CN1240111A (en) * | 1998-06-18 | 2000-01-05 | 杨汉宁 | Process for preparing dehydrated green leaves vegetable |
| CN1387790A (en) * | 2002-07-12 | 2003-01-01 | 烟台润和果蔬食品研究所有限公司 | Low-temperature airflow puffing process of producing crisp fruit and vegetable slice and its product |
| CN101156624A (en) * | 2007-11-08 | 2008-04-09 | 慈溪市蔬菜开发有限公司 | A dewatering processing method of pickled cabbage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104336157A (en) * | 2014-11-17 | 2015-02-11 | 苏州大福外贸食品有限公司 | Method for rapidly processing leaf vegetables |
| CN107361325A (en) * | 2016-05-11 | 2017-11-21 | 吕忠华 | A kind of spinach production line and its production method |
| CN106879722A (en) * | 2016-12-31 | 2017-06-23 | 蚌埠清菲农业科技有限公司 | One kind dehydration spinach preparation method |
| CN107258891A (en) * | 2017-05-17 | 2017-10-20 | 安徽禾泉农庄生态农业有限公司 | A kind of fresh-keeping process technique of pleurotus eryngii |
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Application publication date: 20131225 |