CN106578045A - Physical Chinese chestnut preservation method - Google Patents
Physical Chinese chestnut preservation method Download PDFInfo
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- CN106578045A CN106578045A CN201611063398.9A CN201611063398A CN106578045A CN 106578045 A CN106578045 A CN 106578045A CN 201611063398 A CN201611063398 A CN 201611063398A CN 106578045 A CN106578045 A CN 106578045A
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- semen castaneae
- corona discharge
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- A—HUMAN NECESSITIES
- 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
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/16—Preserving with chemicals
- A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
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- A—HUMAN NECESSITIES
- 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
- A23B9/00—Preservation of edible seeds, e.g. cereals
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- A—HUMAN NECESSITIES
- 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
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/10—Freezing; Subsequent thawing; Cooling
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Abstract
The invention discloses a physical Chinese chestnut preservation method. The problems of insect damage, low nutritive value and the like in the Chinese chestnut storage process are solved. According to the technical scheme, soaking, cleaning, draining, high-pressure osmotic treatment, vacuum high-voltage electric field corona discharge treatment and vacuum package are conducted on fresh Chinese chestnuts, and then cold storage is performed. According to the method, volatilized-out Chinese mugwort gas is in an approximate super-critical state under high-pressure condition, has very strong penetration capacity and can penetrate into Chinese chestnuts to play an effective antibacterial and insecticidal effects, accordingly molecular structures of volatile components in Chinese mugwort are damaged through the vacuum high-voltage electric field corona discharge treatment, peculiar smell is further removed, a Chinese chestnut preservation is greatly prolonged through the treatment, and Chinese chestnuts have good color, fragrance and taste.
Description
Technical field
The invention belongs to field of food preservation, and in particular to a kind of physical fresh-keeping method of Semen Castaneae.
Background technology
Semen Castaneae (scientific name:Castanea mollissima), You Mingli, Semen Castaneae, Semen Castaneae, wind are cured, are the plants of Fagaceae Castanea
Thing, is more common in mountain region, by manually extensively cultivating.Semen Castaneae nutritive value is very high, sweet aroma, and starch-containing 51～60%, albumen
Matter 5.7～10.7%, fat 2～7.4%, sugar, starch, crude fibre, carotene, vitamin A, B1、B2, C and calcium, phosphorus, potassium etc.
Mineral, is available for absorption of human body and the nutrient that utilizes to be up to 98%.With ten Granule Computings, heat is 204 calories, and fat content is then
Less than 1 gram, there is fat content in shell class fruit minimum.Semen Castaneae is called Semen Castaneae, is a kind of health product taken a tonic or nourishing food to build up one's health and cure the disease.The traditional Chinese medical science
Think that Semen Castaneae is sweet in flavor and warm in property, have nourishing stomach and spleen, Bu Shen Zhuang waist, strong muscle promoting blood circulation, hemostasia and detumescence the effects such as.Meanwhile, Semen Castaneae is to height
Blood pressure, coronary heart disease, atherosclerosiss etc. have preferable preventive and therapeutic effect, old people's often to eat Semen Castaneae, to anti-senility, macrobiosis benefit
Longevity is of great benefit to.
Now, according to the nutritional character of Semen Castaneae, existing correlational study person develops various Semen Castaneae preservation methods, for example：In
State number of patent application CN201410796407.X " a kind of antistaling agent for preservation and freshness Semen Castaneae ", Chinese Patent Application No.
CN201410447773.4 " a kind of processing method of instant Chinese chestnut " etc..Research contents is to use chemical substance immersion treatment
Mode, is carried out fresh-keeping.However, inevitably there is food safety potential problem in chemical substance immersion treatment.
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided a kind of process is simple and reliable, energy long-time
It is fresh-keeping, protect color, in good taste, without chemical agent residue, the physical fresh-keeping method of the Semen Castaneae being of high nutritive value.
The physical fresh-keeping method of Semen Castaneae of the present invention is, first using the Radix Artemisia ordosicae quintessence oil gas of approximate supercriticality to fresh plate
Li Jinhang high pressure permeability process, then again to Semen Castaneae use high voltage electric field Corona discharge Treatment, most after Jing vacuum packaging after cold preservation.
Specifically include following steps：
(1), soaking and washing：Fresh Semen Castaneae is immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface, Ran Houchao is removed
1～1.5h of sound；
(2), drain：Semen Castaneae after will be sonicated quickly drains under lucifuge, cryogenic conditions, is then charged into high pressure gas
In room；
(3), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in 100-120 DEG C of promotion Radix Artemisia ordosicae quintessence oil of constant temperature
Volatilization, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae, and to plenum chamber using high-pressure pump
8.8～12MPa is pressurizeed and be maintained at, Radix Artemisia ordosicae quintessence oil gas density is made up to 0.68～0.85g/cm3Approximate supercriticality, place
The reason time is 50～80min；
(4), vacuum high-pressure electric field Corona discharge Treatment：Semen Castaneae Jing after high pressure permeability process is loaded into high voltage electric field corona
In electric discharge device, high voltage electric field Corona discharge Treatment is carried out under vacuum conditions；
(5) Semen Castaneae of Jing outage piezoelectric field Corona discharge Treatments is vacuum-packed, deoxidizer is put into, under the conditions of 1～5 DEG C
Cold storing and fresh-keeping.
In the step (2), it is described drain laggard circulation of qi promoting stream and blow mix process, with net belt type pneumatic drier at 30～50 DEG C
Under the conditions of, it is dried 30～50min.
In the step (2), cryogenic temperature is controlled when draining for 1～10 DEG C.
In the step (4), it is 90～150KV to control high-voltage corona field intensity, and process time is 12～18h.
In step (4), control vacuum is in 2000～2500Pa.
In the step (4), the high voltage electric field corona discharge assembly at least includes metallic plate and spray point, the Semen Castaneae
Maximum tiling thickness on a metal plate is 15～30mm, and spray point and metallic plate minimum range are 60～80mm, spray point it
Between spacing be 60～75mm.For problem present in background technology, inventor carries out depth to the physical fresh-keeping method of Semen Castaneae
The research for entering, in numerous native insecticidal plants Radix Artemisia ordosicae is have selected, and using the volatilization of Radix Artemisia ordosicae quintessence oil antibacterial insecticidal action is played, but
Inventor has found again, because Semen Castaneae has thicker epidermis, only in methods such as common stifling or immersions, it is difficult to ooze Radix Artemisia ordosicae quintessence oil
Thoroughly to Semen Castaneae.To solve the above problems, inventor promotes the volatilization of Radix Artemisia ordosicae quintessence oil first with isoperibol, then in high pressure
Under the conditions of make the Radix Artemisia ordosicae gas for volatilizing show as approximate supercriticality, be allowed to have extremely strong penetrating power such that it is able to
Penetrate into inside Semen Castaneae, obtain excellent antibacterial insecticidal effect, therefore the pretreatment stage of Semen Castaneae can be peeled off or not shelled
Shell process.
The Radix Artemisia ordosicae has strong volatility because also can make to be remained on Semen Castaneae swashing thorn nature and flavor road, affect Semen Castaneae mouthfeel and
Fragrance, to this problem, inventor carries out vacuum high-pressure electric field Corona discharge Treatment to Semen Castaneae, produces using in corona discharge process
Ion beam make to remain in Radix Artemisia ordosicae gas molecule energy increase in Semen Castaneae, cause the fracture of hydrogen bond between chain molecule group, from
And the volatile ingredient molecular structure in brokenization Radix Artemisia ordosicae, the sharp thorn nature and flavor road that Radix Artemisia ordosicae brings fast and effectively is eliminated, meanwhile, invention
People also has found that vacuum high-pressure electric field Corona discharge Treatment also has killing action to the worm's ovum inside Semen Castaneae.And evacuation environment
Under, the action effect of one side energy reinforced high pressure corona field, moreover it is possible to further go to eliminate the unusual smell is thorough next using Radix Artemisia ordosicae quintessence oil except solving
Variety of problems.
Selected to promote the temperature of Radix Artemisia ordosicae quintessence oil volatilization to be preferably 100～120 DEG C, temperature is selected should not be too high, it is to avoid
There is unfavorable chemical reaction because of high temperature in Radix Artemisia ordosicae quintessence oil；Selected pressure is 8.8～12MPa, and pressure is improved not only to equipment
Anti-pressure ability proposes requirements at the higher level, and can improve in high pressure permeability processing procedure, and the loss of Semen Castaneae product nutrient substances is too low
Radix Artemisia ordosicae quintessence oil gas density can not then be made up to 0.68～0.85g/cm3Approximate supercriticality；During selected high pressure permeability
Between be 50～80min, the high pressure permeability time is unsuitable long, but to meet Semen Castaneae with the approximate supercriticality of extremely strong penetration
Radix Artemisia ordosicae gas is fully contacted, and penetrates Semen Castaneae deep layer, it is ensured that killing pests and suppressing bacteria effect.
Further, preferably drain followed by blow to mix through air-flow in step (2) and process to reduce the moisture content on Semen Castaneae surface
Content, further suppresses the growth of Semen Castaneae surface microorganism, and it is 40～60 DEG C preferably control air-flow and blow to mix treatment temperature, and the time is
It is dried under the conditions of 40～60min, temperature selects the too high destruction for not only resulting in thermal sensitivity nutritional labeling, and selects higher
In order to meet the needs that outside moisture evaporates, internal moisture is accelerated, to surface migration, to be easily caused and taken on temperature Semen Castaneae surface
The soluble component of band is separated out on surface, so as to cause the hardening on Semen Castaneae surface；The selected time is unsuitable too short, and the time is too short
It is unfavorable for the drying on Semen Castaneae surface, preferred control Semen Castaneae water content is down to less than 15%.
In step (4), the high voltage electric field corona discharge assembly is commercial products (as Shanghai will encourages the scientific and technological limited public affairs of environmental protection
Department's production), at least including the spray point that metallic plate and metallic plate upper vertical are downward, Semen Castaneae maximum on a metal plate is put down
Paving thickness is preferably 15～30mm, and the spacing between spray point is 60～75mm, and electric discharge needle tip is with metallic plate minimum range
Preferably 60～80mm.The distance between selected maximum tiling thickness and discharge needle tip and metallic plate should not select excessive,
Excessive spacing is not good to the killing effect of worm's ovum, also extends the time of high voltage electric field Corona discharge Treatment；High-tension electricity is had stage fright
Intensity is 90～160KV, and high voltage electric field corona discharge intensity is too high, and requirements at the higher level can be proposed to working condition, and to Semen Castaneae
Quality also adversely affect, but high-voltage corona field intensity is in below 90KV, kills the effect of worm's ovum not notable；Selection of time
It is long to be unfavorable for controlling production efficiency, and prolonged high voltage electric field Corona discharge Treatment is unfavorable for keeping the quality of Semen Castaneae, and
The time too short effect that can affect to kill worm's ovum；
Beneficial effect：
(1) whole process does not use chemical substance immersion treatment, it is to avoid the food safety potential problem that chemical substance is brought.
(2) Radix Artemisia ordosicae quintessence oil is enable to show as approximate supercriticality than using Radix Artemisia ordosicae quintessence oil suffocating treatment merely during high pressure permeability
Play more significant antibacterial insecticidal action.(3) using in corona discharge process produce ion beam brokenization Radix Artemisia ordosicae in volatility into
Molecular structure, also has significant killing action to the worm's ovum inside Semen Castaneae.Material temperature will not have both been made in corona discharge process
Degree is raised, and in combination with evacuation environment, also solves the final products Peculiar Smell that Radix Artemisia ordosicae gas residue is brought.(4) this
Semen Castaneae prepared by bright method under the conditions of 1～5 DEG C cold storing and fresh-keeping up to more than 70 days, its color and luster, mouthfeel, abnormal smells from the patient and nutritive value
It is effectively guaranteed, with wide market application foreground.
Specific embodiment
Below in conjunction with specific embodiment, the technical scheme in the present invention is clearly and completely described.
Embodiment 1
(1), soaking and washing：By fresh Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(2), drain, air-flow blows mixes process：By the Semen Castaneae Jing after processing at lucifuge, 1 DEG C of low temperature, quickly drain, then
With net belt type pneumatic drier under the conditions of 30 DEG C, 30min is dried；
(3), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in waving for 100 DEG C of promotion Radix Artemisia ordosicae quintessence oils of constant temperature
Send out, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae using high-pressure pump, and plenum chamber is pressurizeed,
Pressure in plenum chamber is guaranteed in 8.8MPa, now Radix Artemisia ordosicae quintessence oil gas shows as 0.68～0.85g/cm of density3It is approximate
Supercriticality, process time is 50min；
(4), vacuum high-pressure electric field Corona discharge Treatment：Semen Castaneae is put into into the metallic plate in high voltage electric field corona discharge assembly
On, it is ensured that in 15mm, with metallic plate apart from 60mm, high-voltage corona field intensity is 90KV to the thickness that tiles after dress sample at needle electrode tip,
High voltage electric field Corona discharge Treatment 12h is carried out under vacuum conditions, it is ensured that vacuum is in 2000～2500Pa；
(5), it is vacuum-packed：By dried Semen Castaneae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(6), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
Embodiment 2
(1), pretreatment of raw material：Using Semen Castaneae skinning machine, the shell and endothelium of Semen Castaneae are peelled off, while manual removing has worm channel
With the Semen Castaneae for going mouldy；
(2), soaking and washing：By above-mentioned Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(3), drain, air-flow blows mixes process：By the Semen Castaneae Jing after processing at lucifuge, 10 DEG C of low temperature, quickly drain, then
With net belt type pneumatic drier under the conditions of 50 DEG C, 50min is dried；
(4), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in waving for 120 DEG C of promotion Radix Artemisia ordosicae quintessence oils of constant temperature
Send out, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae using high-pressure pump, and plenum chamber is pressurizeed,
Pressure in plenum chamber is guaranteed in 12MPa, now Radix Artemisia ordosicae quintessence oil gas shows as 0.68～0.85g/cm of density3It is approximate super
Critical state, process time is 80min；
(5), vacuum high-pressure electric field Corona discharge Treatment：Dried Semen Castaneae is laid in metallic plate, it is ensured that after dress sample
In 30mm, with metallic plate apart from 80mm, high-voltage corona field intensity is 150KV to tiling thickness, under vacuum conditions at needle electrode tip
Carry out high voltage electric field Corona discharge Treatment 18h, it is ensured that vacuum is in 2000～2500Pa；
(6), it is vacuum-packed：By dried Semen Castaneae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(7), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
Embodiment 3
(1), pretreatment of raw material：Using Semen Castaneae skinning machine, the shell and endothelium of Semen Castaneae are peelled off, while manual removing has worm channel
With the Semen Castaneae for going mouldy；
(2), soaking and washing：By above-mentioned Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(3), drain, air-flow blows mixes process：By the Semen Castaneae Jing after processing at lucifuge, 5 DEG C of low temperature, quickly drain, then
With net belt type pneumatic drier under the conditions of 40 DEG C, 40min is dried；
(4), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in waving for 110 DEG C of promotion Radix Artemisia ordosicae quintessence oils of constant temperature
Send out, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae using high-pressure pump, and plenum chamber is pressurizeed,
Pressure in plenum chamber is guaranteed in 10MPa, now Radix Artemisia ordosicae quintessence oil gas shows as 0.68～0.85g/cm of density3It is approximate super
Critical state, process time is 65min；
(5), vacuum high-pressure electric field Corona discharge Treatment：Dried Semen Castaneae is laid in metallic plate, it is ensured that after dress sample
In 20mm, with metallic plate apart from 70mm, high-voltage corona field intensity is 130KV to tiling thickness, under vacuum conditions at needle electrode tip
Carry out high voltage electric field Corona discharge Treatment 15h, it is ensured that vacuum is in 2000～2500Pa；
(6), it is vacuum-packed：By dried Semen Castaneae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(7), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
Comparison example 1：Without Radix Artemisia ordosicae quintessence oil in high pressure permeability
(1), pretreatment of raw material：Using Semen Castaneae skinning machine, the shell and endothelium of Semen Castaneae are peelled off, while manual removing has worm channel
With the Semen Castaneae for going mouldy；
(2), soaking and washing：By above-mentioned Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(3), drain, air-flow blows mixes process：By the Semen Castaneae Jing after processing at lucifuge, 1 DEG C of low temperature, quickly drain, then
With net belt type pneumatic drier under the conditions of 30 DEG C, 30min is dried；
(4), high pressure permeability is processed：100g Semen Castaneaes are fitted in plenum chamber, and plenum chamber is pressurizeed, it is ensured that high pressure gas
In 8.8MPa, process time is 50min to indoor pressure；
(5), vacuum high-pressure electric field Corona discharge Treatment：Dried Semen Castaneae is laid in metallic plate, it is ensured that after dress sample
In 15mm, with metallic plate apart from 60mm, high-voltage corona field intensity is 90KV to tiling thickness, is entered under vacuum conditions at needle electrode tip
Horizontal high voltage electric field Corona discharge Treatment 12h, it is ensured that vacuum is in 2000～2500Pa；
(6), it is vacuum-packed：By dried Semen Castaneae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(7), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
Comparison example 2：Vacuum high-pressure electric field Corona discharge Treatment is not used
(1), pretreatment of raw material：Using Semen Castaneae skinning machine, the shell and endothelium of Semen Castaneae are peelled off, while manual removing has worm channel
With the Semen Castaneae for going mouldy；
(2), soaking and washing：By above-mentioned Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(3), drain, air-flow blows mixes process：By the Semen Castaneae Jing after processing at lucifuge, 1 DEG C of low temperature, quickly drain, then
With net belt type pneumatic drier under the conditions of 30 DEG C, 30min is dried；
(4), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in waving for 100 DEG C of promotion Radix Artemisia ordosicae quintessence oils of constant temperature
Send out, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae using high-pressure pump, and plenum chamber is pressurizeed,
Pressure in plenum chamber is guaranteed in 8.8MPa, now Radix Artemisia ordosicae quintessence oil gas shows as 0.68～0.85g/cm of density3It is approximate
Supercriticality, process time is 50min；
(5), it is vacuum-packed：By dried Fructus Jujubae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(6), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
Comparison example 3：High pressure permeability using Radix Artemisia ordosicae quintessence oil but is not adopted to process
(1), pretreatment of raw material：Using Semen Castaneae skinning machine, the shell and endothelium of Semen Castaneae are peelled off, while manual removing has worm channel
With the Semen Castaneae for going mouldy；
(2), soaking and washing：By above-mentioned Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(3), drain, air-flow blows mixes process：By the Semen Castaneae Jing after processing at lucifuge, 1 DEG C of low temperature, quickly drain, then
With net belt type pneumatic drier under the conditions of 30 DEG C, 30min is dried；
(4), infiltration is processed：10ml Radix Artemisia ordosicae quintessence oils are added in heating chamber, in waving for 100 DEG C of promotion Radix Artemisia ordosicae quintessence oils of constant temperature
Send out, the Radix Artemisia ordosicae gas of volatilization is pumped in the plenum chamber equipped with 100g Semen Castaneaes, now not to plenum chamber using high-pressure pump
Pressurization, process time is 50min；
(5), vacuum high-pressure electric field Corona discharge Treatment：Semen Castaneae is put into into the metallic plate in high voltage electric field corona discharge assembly
On, it is ensured that in 15mm, with metallic plate apart from 60mm, high-voltage corona field intensity is 90KV to the thickness that tiles after dress sample at needle electrode tip,
High voltage electric field Corona discharge Treatment 12h is carried out under vacuum conditions, it is ensured that vacuum is in 2000～2500Pa；
(6), it is vacuum-packed：By dried Semen Castaneae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(7), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
Comparison example 4：Do not use air-flow to blow and mix process
(1), pretreatment of raw material：Using Semen Castaneae skinning machine, the shell and endothelium of Semen Castaneae are peelled off, while manual removing has worm channel
With the Semen Castaneae for going mouldy；
(2), soaking and washing：By above-mentioned Semen Castaneae, in being immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then
Ultrasonic 1h；
(3), drain：By the Semen Castaneae Jing after processing at lucifuge, 1 DEG C of low temperature, quickly drain；
(4), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in waving for 100 DEG C of promotion Radix Artemisia ordosicae quintessence oils of constant temperature
Send out, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae using high-pressure pump, and plenum chamber is pressurizeed,
Pressure in plenum chamber is guaranteed in 8.8MPa, now Radix Artemisia ordosicae quintessence oil gas shows as 0.68～0.85g/cm of density3It is approximate
Supercriticality, process time is 50min；
(5), vacuum high-pressure electric field Corona discharge Treatment：Dried Semen Castaneae is laid in metallic plate, it is ensured that after dress sample
In 15mm, with metallic plate apart from 60mm, high-voltage corona field intensity is 90KV to tiling thickness, is entered under vacuum conditions at needle electrode tip
Horizontal high voltage electric field Corona discharge Treatment 12h, it is ensured that vacuum is in 2000～2500Pa；
(6), it is vacuum-packed：By dried Fructus Jujubae, it is vacuum-packed with aluminium foil bag, and by 1% (w/w) puts one within a package
It is packaged with the pouch of Fe powder deoxidizers；
(7), cold preservation：The cold storing and fresh-keeping under the conditions of 1 DEG C.
After embodiment 1-3 and Semen Castaneae obtained in comparative example 1-4 are preserved 30 days at 1 DEG C, each example randomly selects 3
Individual sample removes In Aluminium Foil Packing, 3 sample brown stain degree of sampling and measuring, protein, total fat, total sugar, deworming rates, abnormal flavour and guarantor
The Tibetan phase.
Table 1 respectively shells the experimental result of Semen Castaneae case index of correlation
Claims (7)
1. a kind of physical fresh-keeping method of Semen Castaneae, it is characterised in that first using the Radix Artemisia ordosicae quintessence oil gas pair of approximate supercriticality
Fresh Semen Castaneae carries out high pressure permeability process, then again to Semen Castaneae use high voltage electric field Corona discharge Treatment, most after Jing vacuum packaging
Cold preservation afterwards.
2. the physical fresh-keeping method of Semen Castaneae as claimed in claim 1, it is characterised in that comprise the following steps：
(1), soaking and washing：Fresh Semen Castaneae is immersed in ultra-pure water, the impurity and dust on Semen Castaneae surface is removed, then ultrasound 1
～1.5h；
(2), drain：Semen Castaneae after will be sonicated quickly drains under lucifuge, cryogenic conditions, is then charged into plenum chamber
In；
(3), high pressure permeability is processed：Radix Artemisia ordosicae quintessence oil is added in heating chamber, in waving for 100-120 DEG C of promotion Radix Artemisia ordosicae quintessence oil of constant temperature
Send out, the Radix Artemisia ordosicae quintessence oil gas of volatilization is pumped in the plenum chamber equipped with Semen Castaneae using high-pressure pump, and plenum chamber is pressurizeed
And 8.8～12MPa is maintained at, Radix Artemisia ordosicae quintessence oil gas density is made up to 0.68～0.85g/cm3Approximate supercriticality, during process
Between be 50～80min；
(4), vacuum high-pressure electric field Corona discharge Treatment：Semen Castaneae Jing after high pressure permeability process is loaded into high voltage electric field corona discharge
In device, high voltage electric field Corona discharge Treatment is carried out under vacuum conditions；
(5) Semen Castaneae of Jing outage piezoelectric field Corona discharge Treatments is vacuum-packed, is put into deoxidizer, the cold preservation under the conditions of 1～5 DEG C
It is fresh-keeping.
3. the physical fresh-keeping method of Semen Castaneae as claimed in claim 2, it is characterised in that in the step (2), it is described drain after
Carry out air-flow and blow to mix process, with net belt type pneumatic drier under the conditions of 30～50 DEG C, be dried 30～50min.
4. the as claimed in claim 2 or claim 3 physical fresh-keeping method of Semen Castaneae, it is characterised in that in the step (2), when draining
Cryogenic temperature is controlled for 1～10 DEG C.
5. the physical fresh-keeping method of Semen Castaneae as claimed in claim 2, it is characterised in that in the step (4), controls high-tension electricity
Intensity of having stage fright is 90～150KV, and process time is 12～18h.
6. the physical fresh-keeping method of the Semen Castaneae as described in claim 2 or 5, it is characterised in that in step (4), controls vacuum
In 2000～2500Pa.
7. the physical fresh-keeping method of the Semen Castaneae as described in claim 2 or 5, it is characterised in that in the step (4), the height
Piezoelectric field corona discharge assembly at least includes metallic plate and spray point, and the Semen Castaneae maximum tiling thickness on a metal plate is 15
～30mm, spray point is 60～80mm with metallic plate minimum range, and the spacing between spray point is 60～75mm.
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| CN201611063398.9A CN106578045B (en) | 2016-11-28 | 2016-11-28 | Physical fresh-keeping method for Chinese chestnut |
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| CN201611063398.9A CN106578045B (en) | 2016-11-28 | 2016-11-28 | Physical fresh-keeping method for Chinese chestnut |
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| CN106578045B (en) | 2020-09-04 |
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