CN103461464A - Method for processing dewatered tomatoes - Google Patents
Method for processing dewatered tomatoes Download PDFInfo
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- CN103461464A CN103461464A CN2013104086651A CN201310408665A CN103461464A CN 103461464 A CN103461464 A CN 103461464A CN 2013104086651 A CN2013104086651 A CN 2013104086651A CN 201310408665 A CN201310408665 A CN 201310408665A CN 103461464 A CN103461464 A CN 103461464A
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Abstract
The invention relates to a method for processing dewatered tomatoes, and belongs to the technical field of food processing. The method comprises the steps: sorting, cleaning, blanching, machine-cutting, spin-drying, stoving, cooling, sorting by a machine, manually sorting, and packaging. Compared with the prior art, the method has the advantages of high peeling efficiency and small raw material waste because the tomatoes are cleaned and peeled by adopting ultrasonic waves.
Description
Technical field
The present invention relates to a kind of processing method of dewatered tomato, 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.
What the drying application of dewatering vegetable at present was many is heated-air drying dehydration and vacuum freezedrying dehydration, wherein the heated-air drying dewatering process is as follows: 1, raw material is selected: select to have the vegetable variety that enriches meat, excellent roguing be should strictly select before dehydration, ill worm, rotten, shrivelled part rejected.With eighty per cant maturity, be advisable, overdone or not yet done also should choose, and except melon, goes the seed flesh, and the other types vegetables can be rinsed well with clear water, then put in the cool and dry, but should not tan by the sun in the sun.2, cutting, blanching: by the raw material of wash clean according to product requirement cut into slices respectively, the shape such as silk, bar.While precooking, different different because of raw material, easily well-done putting in boiling water scalds, and is difficult for well-done putting in boiling water and slightly boils a moment, and generally blanching time is 2～4 minutes.3, cooling, draining: the vegetables of precooking after processing should carry out cooling (generally adopting the cold water shower) immediately, make it be down to rapidly normal temperature.After cooling, for shortening drying time, available centrifuge water dumping, also available simple hand method is pressed drop, after the water drop is most, just can spread air dry a little out, in order to the sabot baking.4, dry: should determine different temperature, time, color and luster and moisture content while drying according to different cultivars.Dry and generally carry out in drying room.Drying room roughly has three kinds: the simple and easy drying room of the first adopts the adverse current forced air drying; The second is the drying room combined with two layers of twin tunnel, concurrent-countercurrent; The third is van-type stainless steel hot blast dryer, and the bake out temperature scope is 65 ℃～85 ℃, minute different temperatures drying, progressively cooling.While adopting first, second kind of drying room, vegetables are spread equably in dish, then be put on the shelf of establishing in advance, keep 50 ℃ of left and right of room temperature, will constantly stir simultaneously, it is accelerated dry, general drying time is about 5 hours.5, go-on-go, packing: dehydrated vegetables reaches the food hygiene law requirement through check, can be divided in polybag, and be sealed, cases, then listing.
At present, traditional skinning machine adopts drum-type seperator rolling friction peeling, because the shape size of raw material differs, so such peeling mode wastage of material rate is very high, and peeling efficiency is low, and can not remove the peel at some distorted regions.Especially such vegetables of tomato, in its pericarp, content of cellulose is high, and mouthfeel is poor, and its pulp is softer, therefore removes the peel very difficult.
Summary of the invention
The technical problem that the present invention solves is: propose a kind of processing method of dewatered tomato, the method adopts Ultrasonic Cleaning, the grit abrasion peeling, thus improve peeling efficiency, minimizing wastage of material.
In order to solve the problems of the technologies described above, the technical scheme that the present invention proposes is: a kind of processing method of dewatered tomato comprises the following steps:
(1) the selection raw tomatoes material, reject the defective products in tomato;
(2) Ultrasonic Cleaning peeling: will be placed in the saturated aqueous common salt that contains diameter 1.5～2.0mm gravel through the tomato of selection, utilize ultrasonic generator to apply ultrasonic wave to described saturated aqueous common salt liquid, hyperacoustic frequency and the sound intensity are respectively 25KHZ～50KHZ and 1.5～3W/cm
2, 60 to 150 seconds duration, then tomato is taken out with clear water and rinses, and remove the base of a fruit;
(3) blanching is cooling: with the hot water blanching of 95～100 ℃ of temperature through clean tomato 3～5 min of peeling, then pull out insert in cold water cooling;
(4) machine is cut: use cutting machine, and the tomato of blanching is diced;
(5) dry: send the tomato fourth cut to centrifuge and dry;
(6) first drying: the tomato fourth after centrifuge dripping is put into to baking oven and dried, 75 ± 5 ℃ for the treatment of temperatures, processing time 2～4h;
(7) cooling: the tomato fourth after drying is used the air blast quenching, and temperature is down to below 40 ℃;
(8) machine choosing for the first time: according to the granularity requirements of product, select the screen cloth of dimension to be screened the tomato fourth, then carry out magnetic separation, remove light impurity, metal object, powder and rectangular;
(9) manually sort: mainly remove foreign matter, worm fly, Huang Ye, the old Gen Jiqian road not removed rectangular thing that sieves;
(10) weigh, pack.
Further improving of technique scheme is: after described step (6), if the water content of tomato fourth, higher than 7%, is carried out secondary drying; 70 ± 5 ℃ of bake out temperatures, processing time 2～4h, make tomato fourth water content lower than 7%.
Further improving of technique scheme is: described step (9) also has machine choosing for the second time afterwards: use screening, selection by winnowing, magnetic separation, metal detection, remove manually to sort and fail hair, mudstone and the metal object removed.
Further improving of technique scheme is: in described step (10), also have afterwards selective examination: carry out the requirement check of material moisture content, microorganism and client's appointment; Warehouse-in after selective examination 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.
Further improving of technique scheme is: in described step (2), described ultrasonic generator is the piezoelectric-type ultrasonic wave generating device.
Further improving of technique scheme is: in described step (7), described manually sorting is to carry out in the toilet of 20 ± 2 ℃ of room temperature controls and relative humidity control≤50%.
Further improving of technique scheme is: described defective products is straw, metal, hair and foreign matter, and putresces and immature tomato.
The invention has the beneficial effects as follows:
The processing method of dewatered tomato provided by the invention adopts grit, saturated aqueous common salt to coordinate with ultrasonic wave, chooses that (density is at 1.2～1.4g/cm than the grit of lightweight
3between), grit is suspended in saturated aqueous common salt, under hyperacoustic vibrations, constantly clash into the tomato surface, can the tomato surface be removed totally and is somebody's turn to do in the short time, the processing method of dewatered tomato provided by the invention adopts the Ultrasonic Cleaning peeling, and peeling efficiency is high, wastage of material is few.
The specific embodiment
Embodiment
A kind of processing method of dewatered tomato comprises the following steps:
(1) the selection raw tomatoes material, reject the defective products in tomato: the foreign matters such as immature tomato that rot, not mature, straw, metal, hair;
(2) Ultrasonic Cleaning peeling: will be placed in the saturated aqueous common salt that contains diameter 1.5～2.0mm gravel through the tomato of selection, utilize the piezoelectric-type ultrasonic wave generating device to apply ultrasonic wave to described saturated aqueous common salt liquid, hyperacoustic frequency and the sound intensity are respectively 25KHZ～50KHZ and 1.5～3W/cm
2, 60 to 150 seconds duration, then tomato is taken out and rinses with clear water;
(3) blanching is cooling: the tomato with the hot water blanching of 95～100 ℃ of temperature through cleaning peeling～5 min, then pull out insert in cold water cooling;
(4) machine is cut: use cutting machine, and the tomato of blanching is diced;
(5) dry: send the tomato fourth cut to centrifuge and dry;
(6) first drying: the tomato fourth after centrifuge dripping is put into to baking oven and dried, 75 ± 5 ℃ for the treatment of temperatures, processing time 2～4h;
(7) secondary drying: by water content in upper step higher than 7% batch the tomato fourth put into baking oven and dried, 70 ± 5 ℃ for the treatment of temperatures, processing time 2～4h, guarantee that water content is lower than 7%;
(8) cooling: the tomato fourth after drying is used the air blast quenching, and temperature is down to below 40 ℃;
(9) machine choosing for the first time: according to the granularity requirements of product, select the screen cloth of dimension to be screened the tomato fourth of drying, then carry out magnetic separation, remove light impurity, metal object, powder and rectangular;
(10) manually sort: mainly remove foreign matter, worm fly, Huang Ye, the old Gen Jiqian road not removed rectangular thing that sieves;
(11) machine choosing for the second time: use screening, selection by winnowing, magnetic separation, metal detection, main removal manually sorts fails hair, mudstone and the metal object removed.
(12) weigh, pack.
Originally be in embodiment, in step (10), manually sorting is to carry out in the toilet of 20 ± 2 ℃ of room temperature controls and relative humidity control≤50%; After having sorted, use uviol lamp, ozone generator to carry out disinfection to the chamber of sorting at every turn.
In step (12), also spot-check afterwards: carry out the requirement check of material moisture content, microorganism and client's appointment; Warehouse-in after selective examination 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.
At first small lot trial run in step (2), according to trial run situation furnishing confirm this batch of design parameter definite value, then produce in enormous quantities, and monitor at any time the condition of production, and adjust parameter.
Originally be that grit in embodiment is chosen glutenite than lightweight (density is 1.2～1.4g/cm
3), through smashing the particle of going into 1.5mm～2.0mm, every operation is changed once in 6～12 hours.
The described concrete technical scheme of above-described embodiment that is not limited to of the present invention, all employings are equal to the technical scheme of replacing formation and are the protection domain that the present invention requires.
Claims (7)
1. the processing method of a dewatered tomato is characterized in that comprising the following steps:
(1) the selection raw tomatoes material, reject the defective products in tomato;
(2) Ultrasonic Cleaning peeling: will be placed in the saturated aqueous common salt that contains diameter 1.5～2.0mm gravel through the tomato of selection, utilize ultrasonic generator to apply ultrasonic wave to described saturated aqueous common salt liquid, hyperacoustic frequency and the sound intensity are respectively 25KHZ～50KHZ and 1.5～3W/cm
2, 60 to 150 seconds duration, then tomato is taken out with clear water and rinses, and remove the base of a fruit;
(3) blanching is cooling: with the hot water blanching of 95～100 ℃ of temperature through clean tomato 3～5 min of peeling, then pull out insert in cold water cooling;
(4) machine is cut: use cutting machine, and the tomato of blanching is diced;
(5) dry: send the tomato fourth cut to centrifuge and dry;
(6) first drying: the tomato fourth after centrifuge dripping is put into to baking oven and dried, 75 ± 5 ℃ for the treatment of temperatures, processing time 2～4h;
(7) cooling: the tomato fourth after drying is used the air blast quenching, and temperature is down to below 40 ℃;
(8) machine choosing for the first time: according to the granularity requirements of product, select the screen cloth of dimension to be screened the tomato fourth, then carry out magnetic separation, remove light impurity, metal object, powder and rectangular;
(9) manually sort: remove foreign matter, worm fly, Huang Ye, old root and the not removed rectangular thing of preceding working procedure;
(10) weigh, pack.
2. the processing method of dewatered tomato according to claim 1, is characterized in that: after described step (6), if the water content of tomato fourth, higher than 7%, is carried out secondary drying; 70 ± 5 ℃ of bake out temperatures, processing time 2～4h, make tomato fourth water content lower than 7%.
3. the processing method of dewatered tomato according to claim 1, it is characterized in that: described step (9) also has machine choosing for the second time afterwards: use screening, selection by winnowing, magnetic separation, metal detection, remove manually to sort and fail hair, mudstone and the metal object removed.
4. the processing method of dewatered tomato according to claim 1, is characterized in that: in described step (10), also have afterwards selective examination: carry out the requirement check of material moisture content, microorganism and client's appointment; Warehouse-in after selective examination 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.
5. according to the processing method of arbitrary described dewatered tomato of claim 1～4, it is characterized in that: in described step (2), described ultrasonic generator is the piezoelectric-type ultrasonic wave generating device.
6. according to the processing method of arbitrary described dewatered tomato of claim 1～4, it is characterized in that: in described step (7), described manually sorting is to control 20 ± 2 ℃ and relative humidity in room temperature to control in≤50% toilet and carry out.
7. according to the processing method of arbitrary described dewatered tomato of claim 1～4, it is characterized in that: described defective products is straw, metal, hair and foreign matter, and putresces and immature tomato.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104938612A (en) * | 2015-07-17 | 2015-09-30 | 句容市老方葡萄科技示范园 | Raisin processing method |
| CN106595231A (en) * | 2016-12-14 | 2017-04-26 | 张世文 | Grain drying facility for grain processing |
| CN107996684A (en) * | 2017-12-26 | 2018-05-08 | 安徽省东乾食品有限公司 | A kind of preparation method of the dewatered tomato based on heated-air drying |
| CN108419966A (en) * | 2018-03-26 | 2018-08-21 | 湖南化工职业技术学院（湖南工业高级技工学校） | A kind of tomato Kiwi berry compound fruit and vegetable juice and its production technology |
| CN109549062A (en) * | 2018-12-20 | 2019-04-02 | 西南大学 | A kind of ultrasonic wave added lye tomato barking method and product |
| CN109590050A (en) * | 2018-12-04 | 2019-04-09 | 唐山市如辉玉米产品技术开发有限公司 | Refine the production technology of hominy grits |
| CN114886130A (en) * | 2022-04-08 | 2022-08-12 | 临沂兴诺食品有限公司 | Vegetable dehydration processing technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104938612A (en) * | 2015-07-17 | 2015-09-30 | 句容市老方葡萄科技示范园 | Raisin processing method |
| CN106595231A (en) * | 2016-12-14 | 2017-04-26 | 张世文 | Grain drying facility for grain processing |
| CN107996684A (en) * | 2017-12-26 | 2018-05-08 | 安徽省东乾食品有限公司 | A kind of preparation method of the dewatered tomato based on heated-air drying |
| CN108419966A (en) * | 2018-03-26 | 2018-08-21 | 湖南化工职业技术学院（湖南工业高级技工学校） | A kind of tomato Kiwi berry compound fruit and vegetable juice and its production technology |
| CN108419966B (en) * | 2018-03-26 | 2021-08-03 | 湖南化工职业技术学院（湖南工业高级技工学校） | Tomato and kiwi fruit composite fruit and vegetable juice and production process thereof |
| CN109590050A (en) * | 2018-12-04 | 2019-04-09 | 唐山市如辉玉米产品技术开发有限公司 | Refine the production technology of hominy grits |
| CN109549062A (en) * | 2018-12-20 | 2019-04-02 | 西南大学 | A kind of ultrasonic wave added lye tomato barking method and product |
| CN114886130A (en) * | 2022-04-08 | 2022-08-12 | 临沂兴诺食品有限公司 | Vegetable dehydration processing technology |
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