CN108514089A - Disposable seedless high-moisture jujube and processing method - Google Patents

Disposable seedless high-moisture jujube and processing method Download PDF

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CN108514089A
CN108514089A CN201810175087.4A CN201810175087A CN108514089A CN 108514089 A CN108514089 A CN 108514089A CN 201810175087 A CN201810175087 A CN 201810175087A CN 108514089 A CN108514089 A CN 108514089A
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jujube
water
rehydration
moisture
seedless
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李喜宏
杨莉杰
杨维巧
张宇峥
朱刚
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Ningxia In West Jujube Industry Ltd By Share Ltd
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Ningxia In West Jujube Industry Ltd By Share Ltd
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/03—Products from fruits or vegetables; Preparation or treatment thereof consisting of whole pieces or fragments without mashing the original pieces
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/01—Instant products; Powders; Flakes; Granules
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/03—Organic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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Abstract

The present invention relates to a kind of processing methods of disposable seedless high-moisture jujube, including (1) pretreatment, (2) microwave hot air interval are toasted, (3) hydrogel magnetization rehydration, (4) high temperature coupling ultrasonic atomization rehydration, (5) prepare slow-release type microcapsule fungicide, (6) spray packaging.Sodium Acid Pyrophosphate in the present invention is ackd salt, increases its affinity with water by aquation, so that gel water-retaining property is improved, while making protein molecule combination moisture and improving water-retaining property, is conducive to maintain the full shape of jujube.Food grade glycerin prevents dehydration, stiff, inhibition tannin atypical hyperplasia, reaches water lock, moisturizing, sweetened, smooth palatable, color protection, fresh-keeping, weightening, extend the shelf life.

Description

Disposable seedless high-moisture jujube and processing method
Technical field
The invention belongs to jujube deep process technology field, especially a kind of disposable seedless high-moisture jujube and processing method.
Background technology
The major defect of existing disposable instant jujube is as follows：
1, the saccharomycete of raw material jujube surface attachment is produced because of catalytic action because of the alcohol dehydrogenase of anaerobic respiration, cell interior Raw ethyl alcohol, leads to alcoholization；
1) alcohol dehydrogenase (ADH)：ADH is directly using ethyl alcohol as the enzyme of substrate, and catalysis ethanol is acetaldehyde, is further decomposed Conversion.But after harvesting, in the case where lacking photosynthesis, ethyl alcohol is broken down into acetyl-CoA, this is recycled into TCA Process is difficult to be reversed completely by ADH etc., causes ethyl alcohol excess accumulation, leads to alcoholization.
2) oxygen-free environment：Most of saccharomycete is saprophytic, lives in higher sugar content, slant acidity (pH value 4.5-6), temperature Suitable in the environment of (20 DEG C -30 DEG C).The chemistry that the required energy such as Yeast Growth, metabolism is generated from oxidation operation Can, the carbon source needed is also essentially from organic matter, such as starch, carbohydrate, cellulose and organic acid.And in dry jujube rich in carbohydrate, Fructus corni dense structure is rich in cellulose, and (such as Lars 12, K words yeast, Nanyang 5 and Nanyang are mixed for the fermented type saccharomycete of attachment Close yeast etc.) it is acted on by alcoholic fermentation, by conversion of pyruvate at ethyl alcohol, and a large amount of molecule energy ATP is produced, it is existing to generate alcoholization As.Since PPO is weak to the affinity of O2, its Electron Transfer only could be smoothly played under high concentration O2 environment, pushed Aerobic respiration is smoothed out；O2 concentration is in a slight decrease will likely to make its activity reduce, and aerobic respiration approach is caused to be obstructed.
2, the moisture of the commodity jujube on existing market is low (drying red referring to GB/T5835-2009 not higher than 25% Jujube), shape is shrivelled, epidermis shrinkage, quality is stiff, chewiness is poor, free water is easy to lose, thin in storage period finished product jujube cell Born of the same parents' retentiveness is poor.
3, the conventional water sucting mode elapsed time that impregnates is long, and moisture spreads uneven, iuntercellular in cell tissue structure Moisture is unbalanced.
4, excessively high (moisture about 30%, belongs to high-moisture washing-free dry jujubes to finished product jujube moisture, about 0.8) Aw, can be micro- Biology (such as saccharomycete, dryness mould, most halophilic bacterias) creates the condition (Aw of suitable growth breeding>0.6), cause into Savor that the long bacterium of jujube mildew, keeping quality be poor, storage period shortens.
Invention content
The purpose that the present invention carries provides that a kind of jujube taste is strong, moisture is sufficient, mouthfeel in place of overcome the deficiencies in the prior art Good disposable seedless high-moisture jujube and processing method.
The present invention realizes that the technical solution of purpose is as follows：
A kind of processing method of disposable seedless high-moisture jujube, it is characterised in that：Include the following steps
(1) it pre-processes
The dry jujube of the uniform Lingwu Long Jujube of quality is chosen, cleaning classification is rolled through pressure-air and cleaned, aqueous cleaning solution is chloric acid Aqueous solution contains 5% surfactant sodium alkyl benzene sulfonate, 10mg/L ozone, to purify miscellaneous bacteria, pesticide and the life on dry jujube surface The biochemistry such as long conditioning agent residue, insect excretions wash, and then clean 10min-20min with clear water, spare；
(2) far infrared intermittently toasts in short-term
The jujube that will be handled through step (1) carries out far infrared interval and toasts, prior to microwave power 150W-200W, baking Time 10min-15min, interval 5min, interval number are 6-7 times.Then air cooking time 5h-6h, air cooking temperature 55-65 DEG C, the moisture of jujube is controlled in 18%-20%；
(3) hydrogel magnetizes rehydration
It is added in aquogel type rehydration agent in the jujube handled through step (2) and carries out rehydration, it is multiple using stirring magnetization method Water, at 25-30 DEG C, with rehydration 20s- under 0.1T-0.15T magnetic field intensities, the mixing speed of 1200r/min-1500r/min 1min；
(4) high temperature coupling ultrasonic is atomized rehydration
The jujube handled through step (3) is placed in water proof fumigation tank, pressure 0.15MPa-0.18MPa, ultrasonic power For 100W-120W, water proof fumigation temperature be 70-75 DEG C, fumigation time 1.5h-2h, until jujube moisture is 28%- 30%；
(5) slow-release type microcapsule fungicide is prepared
2wt% sodium alginate solns are prepared, the water bath with thermostatic control heating at 55 DEG C, magnetic agitation to dissolving is completely；Be added etc. Volume compound disinfectant, 0.1wt% Tween 80s and/or 0.1wt% monoglycerides carry out ultrasonic homogeneous 15min, form oil-in-water breast Liquid,
Under 600rpm magnetic agitations, oil-in-water emulsion is expressed into 2wt% calcium chloride solutions with syringe, generates sea Calcium alginate gel；It is added dropwise, continues after stirring 30min, cleaned three times with deionized water, room temperature is dried, and it is micro- to obtain slow-release Capsule fungicide；The sodium alginate soln：Calcium chloride solution volume ratio is 1:1, the weight percent concentration of compound disinfectant For：The potassium sorbate of 0.1%-0.2%, the nisin of 0.025%-0.05%, 0.001%-0.01% eugenols；
(6) slow-releasing microcapsule fungicide is uniformly sprayed onto through step (4) treated jujube surface, carries out sterilization processing, Then pressure-air is used to dry up；
(7) it packs：The jujube that will be handled through step (6) carries out nitrogen-filled packaging.
Moreover, the pretreated method is：Select no disease and pests harm, without machinery wound, uniform in size, color and luster is ruddy, fruit shape Jujube is impregnated 20min-30min by consistent Lingwu Long Jujube extra dry red wine jujube with the acetic acid of 20g/L-35g/L, and by nitric oxide gas Body is constantly passed through in solution, inhibits alcoholization, then with the clear water Rapid Cleaning 1min-2min of flowing.
Moreover, the preparation method of the aquogel type rehydration agent is：
It weighs 7.5g gelatin and is dissolved in 100g under the mixing speed of 600r/min-800r/min under 35-40 DEG C of water-bath In distilled water, 7.5% gelatin solution is made, by the Sodium Acid Pyrophosphate solution of 0.1%-0.2%, the food of 0.8%-1% Grade glycerite and 7.5% gelatin solution by volume 1.5：1.5：2 mass ratio is mixed, in 35-40 DEG C of water-bath item Aquogel type rehydration agent is made in magnetic agitation 15-20min under part.
The present invention compared with prior art the advantages of and good effect it is as follows：
1, in terms of inhibiting alcoholization
1) present invention uses hypochlorite solution, and the aqueous solution for increasing surfactant and ozone is cleaned, can be to big Jujube surface is thoroughly sterilized, and removes the poisonous and harmful substances such as agriculture is residual, ensures the real cleaning on jujube surface.
2) acetic acid, saccharomyces cerevisiae maintains the stabilization of intracellular pH by film quality ATP enzyme, also by the weight of cell wall and cell membrane Structure reduces the absorption to molecular state acetic acid and prevents damage of the acetic acid to film.To maintain plasmalemma potential, preventing Acidation, carefully Adenosine triphosphatase H+-ATPase (PMA1 gene codes) hydrolyzables ATP on after birth generates energy, and proton is pumped out cell Maintain intracellular normal neutral environment.Therefore in the presence of high-concentration acetic acid (20g/L), ATP consumption excessively causes to lack, carefully The proton of intracellular cannot be pumped out completely, and acetic acid can pass through free diffusing or aquaglyceroporin Fps1p and transport protein Ady2p and Jen1p is transported into the cell, so as to cause Acidation, inhibits cell growth and metabolism.
2, in terms of full appearance
1) Sodium Acid Pyrophosphate is ackd salt, increases its affinity with water by aquation, make gel water-retaining property It improves, while making protein molecule combination moisture and improving water-retaining property, be conducive to maintain the full shape of jujube.
2) food grade glycerin prevents dehydration, stiff, inhibits tannin atypical hyperplasia, reach water lock, moisturizing, it is sweetened, smooth can Mouth, color protection, fresh-keeping, weightening, extend the shelf life.
In terms of 3 points of diffusions uniformly
Jujube is fumigated using magnetic field rehydration, high temperature coupling ultrasonic atomizing type, and increases use " aquogel type rehydration for the first time Agent " keeps moisture diffusion in jujube uniform, and moisture increases, using the magnetic field of some strength change hydrogen key length and intensity in water, The influence of the paramagnetism of metallic atom and externally-applied magnetic field to the ion at enzyme reaction center in enzymatic structure, and make the space structure of enzyme molecule As changing；Gas-liquid interface is directed toward by liquid using the ultrasonic wave of certain sound intensity, makes ultrasonic wave in this interface (liquid table Face) capillary wave rupture is formed, to form fog belt in liquid level appointed part is sent to by sending mist or blower unit (referring to self-control fumigation tank).
4, for storage period short problem
The present invention is prepared for slow-release type microcapsule fungicide, and potassium sorbate is compounded with nisin, and compounding effect is excellent In single preservative effectiveness, antimicrobial spectrum is more extensive, to inhibiting Gram-negative bacteria, gram-positive bacteria and the spore of bacillus There is strong inhibiting effect.The useful effect composition of the Compositional antiseptic agent enters intracellular, change mould, bacterium by cell membrane The permeability of equal microbial cells film, inhibits the activity of microbial cell internal respiration enzyme system, in acid condition (optimal pH It is 2.5-4.5) fine to saccharomycete, mould and part bacterial action effect.
Specific implementation mode
Below by specific embodiment, the invention will be further described, and following embodiment is descriptive, is not limit Qualitatively, protection scope of the present invention cannot be limited successively.
The disposable seedless high-moisture jujube of one kind and processing method, steps are as follows：
1.1 pretreatment
Select no disease and pests harm, without machinery wound, the Lingwu Long Jujube extra dry red wine jujube that uniform in size, color and luster is ruddy, fruit shape is consistent.Choose product The dry jujube of the uniform Lingwu Long Jujube of matter, cleaning classification, rolls through pressure-air and cleans, and aqueous cleaning solution is chloric acid aqueous solution, contains 5% Surfactant sodium alkyl benzene sulfonate, 10mg/L ozone are given birth to miscellaneous bacteria, pesticide and the growth regulator etc. that purify dry jujube surface Change residue, insect excretions wash, and then clean 10min-20min with clear water, and stoning is spare；
1.2 color protection
In through 1.1 processing jujube in be added mass concentration be 0.05%-0.1% D-araboascorbic acid sodium, The ascorbic acid of 0.05%-0.1%, the citric acid of 0.05%-0.1%, 0.05%-0.1% sodium citrate compound color protection 1 part of agent carries out color protection 3min-5min.D-araboascorbic acid sodium and ascorbic acid can inhibit the oxidases such as PPO, POD The carboxyl of activity, citric acid and sodium citrate can chelate the copper prothetic group of polyphenol oxidase, with very strong chelated metal ions Effect, they are combined with trace metal ion in jujube, to make metal ion be complexed, have the function that protect pigment.
1.3 far infrareds intermittently toast in short-term
Jujube through 1.1 processing is carried out far infrared interval to toast, prior to microwave power 150W-200W, baking time 10min-15min, interval 5min, interval number are 6-7 times.Then air cooking time 5h-6h, air cooking temperature 55-65 DEG C, the moisture of jujube is controlled in 18%-20%.
1.4 hydrogels magnetize rehydration
It is added in aquogel type rehydration agent in the jujube through 1.3 processing and carries out rehydration, using stirring magnetization method, in 25- At 30 DEG C, with rehydration 20s-1min under 0.1T-0.15T magnetic field intensities, the mixing speed of 1200r/min-1500r/min, make coke Disodium dihydrogen and food grade glycerin can combine closely with hydroaropic substance in jujube, while stirring and cell is accelerated to absorb water holding Sexual element, holding cell is full, shape is good.Sodium Acid Pyrophosphate and food grade glycerin pass through aquation increase and water Affinity, so that gel water-retaining property is improved, be conducive to maintain the full shape of jujube, prevent dehydration, is stiff.Magnetic field processing passes through shadow Structure of water molecules are rung, the paramagnetism of metallic atom in hydrogen key length and intensity, enzymatic structure is changed in water, zymoprotein is partly led The influence of body and externally-applied magnetic field to the ion at enzyme reaction center, and the space conformation of enzyme molecule is made to change, and magnetic field Processing differs markedly from chemical modification to the destructurization of enzyme molecule.
The preparation method of the aquogel type rehydration agent is：
It weighs 7.5g gelatin and is dissolved in 100g under the mixing speed of 600r/min-800r/min under 35-40 DEG C of water-bath In distilled water, 7.5% gelatin solution is made, by the Sodium Acid Pyrophosphate solution of 0.1%-0.2%, the food of 0.8%-1% Grade glycerite and 7.5% gelatin solution by volume 1.5：1.5：2 mass ratio is mixed, in 35-40 DEG C of water-bath item Aquogel type rehydration agent is made, using a concentration of with gelatin 2-5% solution in magnetic agitation 15-20min under part.
1.5 high temperature coupling ultrasonic atomizing types are stifling
Jujube through 1.4 processing is placed in water proof fumigation tank, pressure 0.15MPa-0.18MPa, ultrasonic power is 100W-120W, fumigation temperature be 70-75 DEG C, fumigation time 1.5h-2h, the atomizing steam and ultrasonic wave for utilizing high temperature to generate So that ultrasonic wave is formed capillary wave in gas-liquid intersection, to form fog belt in liquid level, uniform moisture in jujube is made quickly to expand It dissipates, until jujube moisture is 28%-30%.
1.6 prepare slow-release type microcapsule fungicide
2wt% sodium alginate solns are prepared, the water bath with thermostatic control heating at 55 DEG C, magnetic agitation to dissolving is completely；Be added etc. Volume compound disinfectant, 0.1wt% Tween 80s and/or 0.1wt% monoglycerides carry out ultrasonic homogeneous 15min, form oil-in-water breast Liquid,
Under 600rpm magnetic agitations, oil-in-water emulsion is expressed into 2wt% calcium chloride solutions with syringe, generates sea Calcium alginate gel；It is added dropwise, continues after stirring 30min, cleaned three times with deionized water, room temperature is dried, and it is micro- to obtain slow-release Capsule fungicide；The sodium alginate soln：Calcium chloride solution volume ratio is 1:1, the weight percent concentration of compound disinfectant For：The potassium sorbate of 0.1%-0.2%, the nisin of 0.025%-0.05%, 0.001%-0.01% eugenols；
1.7 that slow-releasing microcapsule fungicide is uniformly sprayed onto the kernel through step 1.6 treated jujube surface and jujube is empty At gap, sterilization processing is carried out, then pressure-air is used to dry up；
1.8 nitrogen-filled packagings, ozone sterilization
Jujube through 1.8 processing is subjected to nitrogen-filled packaging and carries out ozone sterilization, ozone concentration 12mg/m3-20mg/ M3, time 30min-40min.
The present invention and application number 201410571545.8《The preparation method of candied date》, application number 201610039326.4《Folder The preparation method of heart crisp dates》, application number 201510970022.5《Dry-making red date processing technology》Preparation method it is different, this is exempted from Wash seedless high-moisture Lingwu Long Jujube without stir off, without swelling and watering, unused fresh date, but with Lingwu Long Jujube extra dry red wine jujube be original Material, is the leisure product of green and healthy nutrition, belongs to the high-moisture in wash-free red dates (GB/T26150-2010 wash-free red dates) Jujube.
The disposable seedless high-moisture Lingwu Long Jujube is toasted by hypochlorous acid aqueous cleaning and microwave hot air interval, it is suppressed that The respiratory activity of the saccharomycete of raw material jujube surface attachment and the enzyme of inside, it is suppressed that the generation of alcoholization phenomenon, while reducing big The loss of the effectively nutritional ingredient such as flavones, rutin, cyclic adenosine monophosphate (cAMP), VC in jujube；It is utilized using polishing-acid technology for hydrolyzing External force makes fiber key be broken, and destroys the space structure of fructus corni lignin, cellulose and hemicellulose, and it is dry effectively to solve jujube quality Firmly, the problem of chewiness difference, addition Sodium Acid Pyrophosphate, food grade glycerin increase the affinity with water, improve water-retaining property, Achieve the effect that water lock, moisturizing, effectively solves that jujube shape is shrivelled, epidermis shrinkage, free water is easy to lose in cell, cell water holding Property difference problem.Jujube is fumigated using magnetic field rehydration, high temperature coupling ultrasonic atomizing type, keeps moisture diffusion in jujube uniform, carries High water content.
Using potassium sorbate and nisin compound preservative microcapsules, effect is better than single preservative effectiveness, suppression Bacterium spectrum is more extensive, and product keeping quality is stronger, and the anti-corrosion time is long, by test, by the way of microcapsules, can increase by 20% The freshness date of left and right.To sum up, which can not be extended after seedless jujube is made by seasonal effect Market cycle, and improve the added value of fresh dates.

Claims (3)

1. a kind of processing method of disposable seedless high-moisture jujube, it is characterised in that：Include the following steps
(1) it pre-processes
The dry jujube of the uniform Lingwu Long Jujube of quality is chosen, cleaning classification is rolled through pressure-air and cleaned, and aqueous cleaning solution is that chloric acid is water-soluble Liquid, contains 5% surfactant sodium alkyl benzene sulfonate, 10mg/L ozone, and miscellaneous bacteria, pesticide and growth to purify dry jujube surface are adjusted The biochemical residue such as section agent, insect excretions wash, and then clean 10min-20min with clear water, and stoning is spare；
(2) far infrared intermittently toasts in short-term
The jujube that will be handled through step (1) carries out far infrared interval and toasts, prior to microwave power 150W-200W, baking time 10min-15min, interval 5min, interval number are 6-7 times.Then air cooking time 5h-6h, air cooking temperature 55-65 DEG C, the moisture of jujube is controlled in 18%-20%；
(3) hydrogel magnetizes rehydration
In the jujube handled through step (2) be added aquogel type rehydration agent in carry out rehydration, using stirring magnetization method rehydration, in At 25-30 DEG C, with rehydration 20s-1min under 0.1T-0.15T magnetic field intensities, the mixing speed of 1200r/min-1500r/min；
(4) high temperature coupling ultrasonic is atomized rehydration
The jujube handled through step (3) is placed in water proof fumigation tank, pressure 0.15MPa-0.18MPa, ultrasonic power is 100W-120W, water proof fumigation temperature be 70-75 DEG C, fumigation time 1.5h-2h, until jujube moisture is 28%-30%；
(5) slow-release type microcapsule fungicide is prepared
2wt% sodium alginate solns are prepared, the water bath with thermostatic control heating at 55 DEG C, magnetic agitation to dissolving is completely；It is added isometric Compound disinfectant, 0.1wt% Tween 80s and/or 0.1wt% monoglycerides carry out ultrasonic homogeneous 15min, form oil-in-water emulsion,
Under 600rpm magnetic agitations, oil-in-water emulsion is expressed into 2wt% calcium chloride solutions with syringe, generates alginic acid Calcium gel；It is added dropwise, continues after stirring 30min, cleaned three times with deionized water, room temperature is dried, and slow-release type microcapsule is obtained Fungicide；The sodium alginate soln：Calcium chloride solution volume ratio is 1:1, the weight percent concentration of compound disinfectant is： The potassium sorbate of 0.1%-0.2%, the nisin of 0.025%-0.05%, 0.001%-0.01% eugenols；
(6) slow-releasing microcapsule fungicide is uniformly sprayed onto at the through-hole side wall through step (4) treated jujube surface and kernel, Sterilization processing is carried out, then pressure-air is used to dry up；
(7) it packs：The jujube that will be handled through step (6) carries out nitrogen-filled packaging.
2. the processing method of disposable seedless high-moisture Lingwu Long Jujube according to claim 1, it is characterised in that：The pre- place The method of reason is：Select no disease and pests harm, without machinery wound, the Lingwu Long Jujube extra dry red wine jujube that uniform in size, color and luster is ruddy, fruit shape is consistent, The jujube acetic acid of 20g/L-35g/L is impregnated into 20min-30min, and nitric oxide gas is constantly passed through in solution, is inhibited Alcoholization, then with the clear water Rapid Cleaning 1min-2min of flowing.
3. the processing method of disposable seedless high-moisture Lingwu Long Jujube according to claim 1, it is characterised in that：The water-setting The preparation method of glue-type rehydration agent is：
7.5g gelatin is weighed, under 35-40 DEG C of water-bath, 100g distillations are dissolved under the mixing speed of 600r/min-800r/min In water, 7.5% gelatin solution is made, by the food-grade of the Sodium Acid Pyrophosphate solution of 0.1%-0.2%, 0.8%-1% Glycerite and 7.5% gelatin solution by volume 1.5：1.5：2 mass ratio is mixed, under 35-40 DEG C of water bath condition Aquogel type rehydration agent is made in magnetic agitation 15-20min.
CN201810175087.4A 2018-03-02 2018-03-02 Disposable seedless high-moisture jujube and processing method Withdrawn CN108514089A (en)

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CN102125237A (en) * 2011-01-26 2011-07-20 中国农业大学 Processing method of wash-free red dates
CN103238666A (en) * 2013-05-22 2013-08-14 山西天骄生物集团有限公司 Preparation method of washing-free red dates with enhanced flavor and nutrition
CN103843875A (en) * 2014-03-10 2014-06-11 山西天骄食业有限公司 Preparation method of pucker-free non-cleaning dried jujubes

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Publication number Priority date Publication date Assignee Title
CN101966000A (en) * 2010-08-26 2011-02-09 天津市食品加工工程中心 Biological insect-resistant and anti-mildew preservative for bean curd sticks
CN102125237A (en) * 2011-01-26 2011-07-20 中国农业大学 Processing method of wash-free red dates
CN103238666A (en) * 2013-05-22 2013-08-14 山西天骄生物集团有限公司 Preparation method of washing-free red dates with enhanced flavor and nutrition
CN103843875A (en) * 2014-03-10 2014-06-11 山西天骄食业有限公司 Preparation method of pucker-free non-cleaning dried jujubes

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