CN101473867B - Post-harvest storage and fresh-keeping method of fresh-eating oriental melon - Google Patents
Post-harvest storage and fresh-keeping method of fresh-eating oriental melon Download PDFInfo
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Abstract
The invention relates to a melon processing method after the harvesting. The method is characterized in that the picked fresh melon is sprayed and cleaned with water and then dipped in or sprayed with a disinfectant, and the surface of the melon is wet; the melon is processed in a microwave radiation field to effectively kill microorganisms which are disseminated in the field and carried on the melon skin, by means of the heat effect produced by the microwave, the galvanomagnetic effect and the combined action of disinfectant adhered on the melon surface; after disinfection, protection films are formed at the positions of the melon surface, which undergoes coating or waxing; and, in the combination with proper storage temperature, humidity control and other preserving measures, the deterioration of the melon resulted from the action of the microorganisms during the storage, transport and sale processes can be effectively reduced, the commodity ratio of the melon after storage and transport is increased, and the storage/transport period and the shelf period of the melon are prolonged. The method has the advantages of short operation time, high efficiency, energy conservation and easy large-scale production realization.
Description
Technical field
The present invention relates to a kind of is the method for storing and refreshing of raw material with fresh muskmelon, adopts the method for microwave radio sterilization to handle muskmelon, to prolong the storage delivery period and the shelf life of muskmelon.
Background technology
Muskmelon (Cucumis melo L.) is the cultigen in the Cucumis, annual climing property herbaceous plant.Fruit is fragrant and sweet good to eat, is to eat fruit raw in traditional summer that the Chinese numerous both urban and rural residents generally like food.According to statistics, the cultivated area and the output of China's muskmelon all rank first in the world, and are only second to grape, banana, oranges and tangerines, apple in the world's ten big fruit, and occupy the 5th.The Northwest such as Xinjiang, Gansu is the major production areas of muskmelon.Because the quality and flavor uniqueness of muskmelon is again a best high-grade fruit after the meal, is subjected to domestic and international consumer's extensive welcome deeply, is the situation of selling well fruit on the current international market.Along with the raising of expanding economy and living standards of the people, the demand of muskmelon increases day by day both at home and abroad, and muskmelon is produced area and enlarged rapidly.
Because concentrate the term of muskmelon, and, lack in addition and effectively adopt post processing, packing and cold chain measure, make it very easily rotten in the storage transportation, bring very big economic loss for the producer and operator on the occasion of high temperature season.Research to muskmelon storage period disease both at home and abroad has many reports, and main disease is black spot (mutually every interlinkage spore Alternaria.alternata), white mould (sickle-like bacteria Fusarium sp.), soft rot (rhizopus Rhizopus sp.), penicilliosis (penicilliosis Penicillium sp.) etc.
Black spot should disease by causing every interlinkage spore (Alternaria.alternata) mutually, the scab initial stage is the round spot that diameter 0.5～1cm fawn slightly subsides, later melon skin depression, and scab epidermis blackening diameter reaches about 2cm, the surface is long canescence, is later on the mould layer of celadon, grey black.Disease portion pulp is spongy black agglomerate.Go deep into the more shallow 1～2cm of pulp.Pathology portion pulp intersection water soaking mode breaks away from each other.This disease is the main disease in storage later stage and the refrigerator car transportation.
White mould should disease cause by sickle-like bacteria (Fusarium sp.) that sick portion occurred in the side of fruit two ends and near-earth mostly.Pericarp presents the filbert round spot that diameter 2～3cm subsides at first, and pericarp cracking often in the crack the mould clump of white occurs, all left and right sides scab enlarged-diameter to a 5～6cm, and water soaking mode on every side, the center be white.Transfer faint yellow and pink mould layer later on to.Disease portion melon meat is full of mycelia and is spongy cork matter agglomerate, and color is constant mostly, generally gos deep into 2～3cm, sometimes until fruit caving.Disease portion pulp soluble solid content loses sweet taste only 1～6%.When sick portion pulp was aubergine, it is bitter that its taste becomes.This disease is room temperature storage and cryopreservation main disease in earlier stage.
Soft rot should disease cause by rhizopus (Rhizopus sp) that sick portion great majority occurred in the stem end and the wound of fruit, and the initial stage is the big water soaking mode circle of 3～4cm spot, and the scab surface just is canescence, celadon mycelia, the visible syringe needle shape of naked eyes fructification.Disease portion fruit pericarp fragility, one bump promptly broken, melon meat tissue collapse liquefaction, this disease is the main disease during muskmelon storage early stage and normal temperature transport.
"Hami" melon all can be subjected to infective pathogen bacterium latent infection in the whole growth growth course, the reticulate pattern phase is the main period of pathogen latent infection, in addition, gather at muskmelon, preserve, in transportation and the sales process, also can continue to be subjected to the dip-dye of microorganism, rot during causing muskmelon storage transportation and sales.The microorganism of field latent infection and muskmelon surface attachment is the advantage pathogen that causes that muskmelon cryopreservation and Refrigerated Transport are rotted, adopt in the post processing at muskmelon, if can kill the microorganism that the field is contaminated and carried effectively, can reduce the disease generation during muskmelon is preserved transportation and sales effectively, reduce rotting of muskmelon, improve its commodity value.
The microwave disinfection technology is an emerging in recent years radio sterilization technology.It is different from x-ray, gamma-radiation, is a kind of Non-ionizing radiation.Compare with traditional heating means, microwave has weak point heat time heating time, homogeneous heating, food nutrient composition and flavor substance and destroys or lose characteristics such as few.Compare with the chemical agent sterilization technology, microwave disinfection improves its security because of the residual of no chemical substance greatly.It is wider to have sterilization adaptability, and operating cost is relatively low.
Microwave is meant that frequency is the electromagnetic wave of 300MHz-300GHz, is the abbreviation of a limited frequency band in the radio wave, and promptly wavelength to the electromagnetic wave between the 1mm, is the general designation of decimetric wave, centimeter wave, millimeter wave at 1m (not containing 1m).Microwave frequency is also referred to as " uhf electromagnetic wave " usually than general radio wave frequency height.The fundamental property of microwave is rendered as and penetrates, reflects, absorbs three characteristics usually.For glass, plastics and porcelain, microwave almost is to pass through and be not absorbed.Will absorb microwave and make self-heating for water and food etc.And to the metal species thing, then can microwave reflection.
Microwave is than other electromagnetic wave, and is longer as infrared ray, far infrared equiwavelength, therefore has better penetrability.When microwave penetrates medium, because the rising of the medium temperature that dielectric loss causes, make almost while heat temperature raising of dielectric material inside, outside, organizator thermal source state, shortened the conventional heat conduction time of pining for that adds greatly, and when dielectric dissipation factor and medium temperature are negative correlativing relation, material inside and outside homogeneous heating unanimity.
Material absorbs the ability of microwave, is mainly decided by its dielectric dissipation factor.The big material of dielectric dissipation factor is just strong to the absorbability of microwave, on the contrary, the ability that the material that dielectric dissipation factor is little absorbs microwave also a little less than.Because the loss factor of each material there are differences, heating using microwave just shows the characteristics of selectivity heating.Material difference, the thermal effect of generation are also different.Hydrone belongs to polar molecule, and dielectric constant is bigger, and its dielectric dissipation factor is also very big, and microwave is had strong absorbability.And the dielectric constant of protein, carbohydrate etc. is less relatively, and its absorbability to microwave is more much smaller than water.Therefore, for food, what of water content are very big to the heating using microwave influential effect.
Microwave is instantaneous heat temperature raising to dielectric material, and energy consumption is also very low.On the other hand, the power output of microwave is adjustable at any time, and there is not the residual activity phenomenon in the change thereupon of inertialess but medium heats up, the needs that be highly advantageous to control automatically and serialization are produced.
The interaction of microwave and organism is an extremely complicated process.It is when organism is subjected to the microwave radiation, and the microwave transmission organism is absorbed the comprehensive organism effect result that the back is produced.Many-sided result of the test shows that it not only has because of organism absorbs the fuel factor that microwave energy is changed, but also has a kind of non-thermal effect, and these two kinds of effect interdependences are strengthened mutually.Under the same conditions, the microwave disinfection lethal temperature is lower than conventionally pasturised.
Microwave is meant that the biological tissue that caused by microwave or system are heated and the physiological effect that produces to the fuel factor of organism. the principle that fuel factor produces mainly be in the organism polar molecule under the microwave high-frequency effect of electric field, water in the material, protein, nucleic acid isopolarity molecule is had an effect, make polar molecule produce the high speed orientation movement, the phase mutual friction causes internal temperature sharply to raise, make the protein in the microbial cell, the nucleic acid equimolecular is structurally-modified, lose biologically active, make thalline dead or be subjected to serious the interference and can't growth and breeding, to the microorganisms destruction.When heating up, microwave can make membranolysis and change the permeability of liposome, the ion channel that microbial cell is rely with its normal eco-activity of maintenance of extraneous positive energy exchange and information exerts an influence, and makes microbial cell the regulatory function serious hindrance occur, reaches the purpose of sterilization.In addition, microwave has the characteristic of the heating selected, and action of microorganisms is greater than effect to microbial growth media.
The non-thermodynamic activity of microwave is meant in temperature not to be had under the situation of significant change, and the variation on the physiology that cell took place, biochemistry and the function claims biological effect again.The effect of microwave can make the biological permutation and combination state and the characteristics of motion of a large amount of electronics, ion and other charged particle that microorganism produced in its life chemistry process change, and the physiological activator of microorganism is changed.Simultaneously, electric field also can make near the distribution of charges the cell membrane change, and causes the film dysfunction, makes the eubolism function of cell destructions that is interfered, and the growth of microbial cell is suppressed, even stops growing or make it death.The water activity that microwave energy can also make microbial cell depend on for existence reduces the living environment of destroy microorganisms.In addition, microwave can also cause the hydrogen bond in cell DNA and the RNA molecular structure to relax, rupture and reconfigure, modificator gene sudden change, chromosome aberration, thereby the normal fertility of interruption cell.
When organism was subjected to the high power microwave irradiation, fuel factor was mainly (to it is generally acknowledged that power density is at 10mW/cm
2Above fecund is given birth to the low-grade fever effect. and the threshold intensity of the high more generation fuel factor of frequency is low more); Long-term low power density (1mW/cm
2Below) the microwave radiation mainly causes non-thermal effect.
Dessel etc. are inoculated bacteria in food, uses the 2450MHz microwave disinfection then, and the result shows that the required time of microwave disinfection only is 1/9 to 1/12 of traditional heating method.The microwave radiant energy that studies confirm that of Olsen is killed the microorganism in the material under the temperature lower than traditional heating method, for the existence of biological effect provides strong argument.The good microwave moon cake mildew-resistant experimental studies results of carrying out that waits of Wang Sheng shows, microwave irradiation 30s, and temperature is upgraded to 54 ℃, can kill 78.88% Aspergillus flavus, microwave irradiation 120s can kill the blue or green bacterium of garden arc of 100% Aspergillus flavus and 99.99%, confirms the existence of microwave disinfection non-thermal effect.
Utilize microwave treatment Escherichia coli and bacillus subtilis, discovery is along with temperature-rise period cell released dna and protein, viable count reduces along with the increase of DNA and protein burst size, and the result of scanning electron microscopic observation shows that most of colibacillary cell membrane has been subjected to serious destruction.Be rivals in a contest the greatly microwave disinfection of biosolids and the research of mechanism of Fu is pointed out, microwave causes bacterium death by suppressing or destroy the activity of the enzyme relevant with biological oxidation, respiratory metabolism and energy generation such as lactic dehydrogenase in the cell, DPN I and cytochrome oxidase.
Microwave disinfection can also effectively be killed gemma.F.Celandroni etc. use special microwave waveguide equipment, the effect that microwave treatment and traditional heating power mode is acted on bacillus subtilis (Bac illusSubtilis) gemma compares, and thinks that microwave disinfection can reach the effect identical with traditional thermal sterilization.
CN2346211 discloses the patent of " a kind of microwave high pressure bactericidal unit ", is characterized in continuous fluid is carried out sterilization.In the microwave cavity of micro-wave oven, coiled pipe is housed, two walls that microwave cavity is passed at the coiled pipe two ends are connected with the production pipeline by flange, coiled pipe is to be made by glass, pottery, plastics, by the fluid of sterilization continuously in the coiled pipe by in microwave cavity, obtaining quick sterilization.
Summary of the invention
The object of the invention is that providing a kind of is the method for storing and refreshing of raw material with fresh muskmelon, this method be with the fresh muskmelon after adopting through the water spray Cleaning for High Capacity, the silt on flush away muskmelon surface reduces the content of the total microorganism of muskmelon; Soak or spraying fungicide, kill surface microorganism, reduce the content of the total microorganism of muskmelon; Enter microwave radiation field and handle, fuel factor, the galvanomagnetic-effect of utilizing microwave to produce, and the acting in conjunction of the bactericide of spraying are killed the field effectively and are hidden and contaminate and microorganism that epidermis adheres to; Filming or wax on the muskmelon surface after the sterilization to handle forms diaphragm, and the microorganism secondary that can reduce in the muskmelon storing is contaminated, and also has the effect that suppresses to breathe and prevent water evaporates.In conjunction with suitable reserve temperature, humidity control and other fresh-keeping measure, can reduce effectively in muskmelon storage and the transportation and sales process because of rotting that microbial action causes, commodity rate after the storage transportation of raising muskmelon, the storage delivery period and the shelf life of prolongation muskmelon.
A kind of postharvest storage preservation method of eating muskmelon raw of the present invention, this method is a raw material with the muskmelon of new harvesting, adopts the microwave radiation rapidly sterilization to be carried out on muskmelon surface and epidermal area, concrete operations follow these steps to carry out:
A, the muskmelon after will plucking adopt clear water to carry out spray Cleaning for High Capacity earlier, with dust, earth and most of microorganism of removing surface attachment;
B, spray equably on the muskmelon surface that cleans up or flood microbicide solution or the emulsion that concentration is 0.01-5%;
C, the muskmelon of step b is sent in the microwave disinfection device, adopt the microwave radiation, improve the temperature of muskmelon surface and epidermal area, in conjunction with the galvanomagnetic-effect of microwave and the bactericidal effect of muskmelon epidermis bactericide, kill the microorganism of muskmelon surface and epidermal area, processing time is 10s-600s, and the temperature in the processing procedure in the muskmelon 0-10.0mm epidermal area is at 20-70 ℃;
D, with the muskmelon after the step c sterilization dry up the surface moisture, the processing of waxing or film on its surface then;
E, the muskmelon after steps d the handled packing inside bag of packing into, vanning is again carried out pre-cold-peace fresh-retaining preserving transportation and is got final product.
The bactericide of described step b is commercially available carbendazim, Bravo, benomyl (claiming benomyl again), antibacterial azoles or zineb.
Microwave disinfection device among the described step c is batch (-type) and continous way, the tunnel type continuous microwave sterilizer in the wherein preferred continous way.
Microwave frequency among the described step c is 915MHZ or 2450MHZ, and the power of microwave generator is at 0.5kw-50kw.
Described steps d is filmed and is chitosan aqueous solution, waxes to be the edible liquid olefin material.
Inner packaging material among the described step e is papery, nonwoven, plastics or foaming mesh bag.
Housing material among the described step e is carton, plastic crate, plastic box or benzene plate case.
These method and technology characteristics are: the fresh muskmelon after adopting is through arrangement; the clear water spray Cleaning for High Capacity is to remove muskmelon most of microorganism in surface and earth; spray or soaking sterilization agent; and make the muskmelon moistened surface; entering microwave radiation field handles; utilize the synergy of heat, galvanomagnetic-effect and the bactericide of microwave generation; kill the microorganism that is attached in muskmelon surface and the intrusion cortex; handle at muskmelon surface formation diaphragm by filming or waxing; the microorganism secondary that can reduce in the muskmelon storing is contaminated, and the effect that suppresses to breathe and prevent water evaporates is also arranged.Muskmelon after the processing is preserved transportation and sales after packing.This method is at causing the main factor-microorganism that rots in the fresh-keeping storing of muskmelon, carry out sterilization processing efficiently, in conjunction with suitable reserve temperature, humidity control, can reduce in muskmelon storage and the transportation and sales process because of rotting that microbial action causes the commodity rate after the storage that improves muskmelon is transported effectively.
The difference of the present invention and prior art microwave disinfection is, utilized the finiteness of the microwave penetration material degree of depth, only the epidermal area to muskmelon heats, fuel factor, the galvanomagnetic-effect of utilizing microwave to produce, and the combined sterilizing effect that is sprayed on the agent of muskmelon surface disinfection, microorganism in epidermal area is contaminated in hiding with the field of killing that epidermis adheres to, and the heating-up temperature of epidermal area 0-1cm thickness is no more than 70 ℃, the inner cell tissue of muskmelon is not affected, and is still a biological living with normal physiological metabolic function through the muskmelon of microwave treatment.
The specific embodiment
Embodiment 1
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, with dust, earth and most of microorganism of removing surface attachment;
B, to spray the concentration for preparing equably on the muskmelon surface that cleans up be 0.01% chlorothalonil solution;
C, muskmelon is passed through conveyer belt, sending into tunnel type continuous microwave sterilizer, is that 2450MHZ, power are the processing in the microwave field of 1kw in microwave frequency, and the time is 600s, the muskmelon epidermal area temperature be 20-30 ℃, kill the muskmelon epidermis and adhere to harmful microorganism with the field latent infection;
D, the muskmelon after the sterilization is dried up the moisture on surface with blower fan, adopt conventional method that the waxing processing is advanced with edible liquid paraffin in its surface then;
E, the muskmelon after will handling are packed into and are foamed in the packing inside bag of net, reinstall outer packing box, carry out pre-cold-peace fresh-retaining preserving transportation and get final product.
Embodiment 2
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, to remove dirts such as dust, earth and most of microorganism;
B, soak into concentration equably on the muskmelon surface that cleans up be 0.05% Bavistin solution;
C, muskmelon is passed through conveyer belt, send into tunnel type continuous microwave sterilizer, in microwave frequency is that 2450MHZ, power are that processing time in the microwave field of 5kw is 300s, the muskmelon epidermal area temperature be 30-35 ℃, kill the muskmelon epidermis and adhere to harmful microorganism with the field latent infection;
D, the muskmelon after the sterilization is dried up the moisture on surface with blower fan, adopt conventional method that chitosan aqueous solution processing of filming is adopted on its surface then, dry up with blower fan again;
E, will handle the back muskmelon and pack in the papery packaging bag, the external packing benzene plate case of packing into carries out pre-cold-peace fresh-retaining preserving transportation and gets final product.
Embodiment 3
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, to remove dirts such as dust, earth and most of microorganism.
B, spray the bactericide emulsion that concentration is 0.1% benomyl (claiming benomyl again) equably on the muskmelon surface that cleans up;
C, muskmelon is passed through conveyer belt, send into the intermittent type microwave sterilizer, microwave frequency is that 2450MHZ, power are that processing time in the microwave field of 10kw is 200s, and the temperature of muskmelon epidermal area improves 35-45 ℃ for reaching, and kills the muskmelon epidermis and adheres to harmful microorganism with the field latent infection;
D, muskmelon after the sterilization is dried up surface moisture with blower fan, adopt conventional method to adopt edible liquid paraffin to advance waxing then and handle its surface;
E, the muskmelon after will handling are packed in the packing inside bag of polybag, and the extranal packing box of packing into is a plastic box, carries out pre-cold-peace fresh-retaining preserving transportation and gets final product.
Embodiment 4
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, to remove dirts such as dust, earth and most of microorganism;
B, spray concentration equably on the muskmelon surface that cleans up be 0.2% antibacterial azoles microbicide solution;
C, muskmelon is passed through conveyer belt, send into tunnel type continuous microwave sterilizer, in microwave frequency is that 2450MHZ, power are that processing time in the microwave field of 20kw is 200s, the muskmelon epidermal area temperature be 40-50 ℃, kill the muskmelon epidermis and adhere to harmful microorganism with the field latent infection;
D, the muskmelon after the sterilization is dried up surface moisture with blower fan, adopt conventional method that the processing of waxing of edible liquid paraffin is adopted on its surface then;
E, the muskmelon after will handling are packed in the packing inside bag of nonwoven, and the extranal packing box of packing into is a carton, carries out pre-cold-peace fresh-retaining preserving transportation and gets final product.
Embodiment 5
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, with dust, earth and most of microorganism of removing surface attachment;
B, to soak into the concentration for preparing equably on the muskmelon surface that cleans up be in the 2% Difar emulsion;
C, muskmelon is passed through conveyer belt, send into tunnel type continuous microwave sterilizer, in microwave frequency is that 2450MHZ, power are the processing in the microwave field of 30kw, time is 60s-180s, the muskmelon epidermal area temperature be 50-65 ℃, kill the muskmelon epidermis and adhere to harmful microorganism with the field latent infection;
D, the muskmelon after the sterilization is dried up the moisture on surface with blower fan, adopt conventional method that the waxing processing is advanced with edible liquid paraffin in its surface then;
E, the muskmelon after will handling are packed into and are foamed in the packing inside bag of net, reinstall outer packing box, carry out pre-cold-peace fresh-retaining preserving transportation and get final product.
Embodiment 6
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, to remove dirts such as dust, earth and most of microorganism;
B, soak into concentration equably on the muskmelon surface that cleans up be 0.05% Bavistin solution;
C, with muskmelon by conveyer belt, send into tunnel type continuous microwave sterilizer, be 915MHZ in microwave frequency, power is to handle in the microwave field of 40kw, time is 60s, and the temperature of muskmelon epidermal area is 45-50 ℃, kills the muskmelon epidermis and adheres to harmful microorganism with the field latent infection;
D, the muskmelon after the sterilization is dried up the moisture on surface with blower fan, adopt conventional method that chitosan aqueous solution processing of filming is adopted on its surface then, dry up with blower fan again;
E, will handle the back muskmelon and pack in the papery packaging bag, the external packing benzene plate case of packing into carries out pre-cold-peace fresh-retaining preserving transportation and gets final product.
Embodiment 7
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, to remove dirts such as dust, earth and most of microorganism.
B, spray the bactericide emulsion that concentration is 0.1% benomyl (claiming benomyl again) equably on the muskmelon surface that cleans up;
C, muskmelon is passed through conveyer belt, send into the intermittent type microwave sterilizer, microwave frequency is that 915MHZ, power are that processing time in the microwave field of 40kw is 550s, and the temperature of muskmelon epidermal area improves 65 ℃ for reaching, and kills the muskmelon epidermis and adheres to harmful microorganism with the field latent infection;
D, muskmelon after the sterilization is dried up surface moisture with blower fan, adopt conventional method to adopt edible liquid paraffin to advance waxing then and handle its surface;
E, the muskmelon after will handling are packed in the packing inside bag of polybag, and the extranal packing box of packing into is a plastic box, carries out pre-cold-peace fresh-retaining preserving transportation and gets final product.
Embodiment 8
A, the muskmelon after will plucking carry out spray Cleaning for High Capacity with clear water earlier, to remove dirts such as dust, earth and most of microorganism;
B, spray concentration equably on the muskmelon surface that cleans up be 0.5% antibacterial azoles microbicide solution;
C, muskmelon is passed through conveyer belt, sending into tunnel type continuous microwave sterilizer, is that 2450MHZ, power are to handle in the microwave field of 50kw in microwave frequency, and the time is 10s, the temperature of muskmelon epidermal area is 65-70 ℃, kills the muskmelon epidermis and adheres to harmful microorganism with the field latent infection;
D, the muskmelon after the sterilization is dried up surface moisture with blower fan, adopt conventional method that the processing of waxing of edible liquid paraffin is adopted on its surface then;
E, the muskmelon after will handling are packed in the packing inside bag of nonwoven, and the extranal packing box of packing into is a carton, carries out pre-cold-peace fresh-retaining preserving transportation and gets final product.
Claims (1)
1. a postharvest storage preservation method of eating muskmelon raw is characterized in that this method is a raw material with the muskmelon of new harvesting, adopts the microwave radiation rapidly sterilization to be carried out on muskmelon surface and epidermal area, and concrete operations follow these steps to carry out:
A, the muskmelon after will plucking adopt clear water to carry out spray Cleaning for High Capacity earlier, with dust, earth and most of microorganism of removing surface attachment;
B, spray equably on the muskmelon surface that cleans up or soak into microbicide solution or the emulsion that concentration is 0.01-5%;
C, the muskmelon of step b is sent in the microwave disinfection device, adopt the microwave radiation, improve the temperature of muskmelon surface and epidermal area, in conjunction with the galvanomagnetic-effect of microwave and the bactericidal effect of muskmelon epidermis bactericide, kill the microorganism of muskmelon surface and epidermal area, microwave treatment time is 10s-600s, and the temperature in the processing procedure in the muskmelon 0-10.0mm epidermal area is at 20-70 ℃;
D, the muskmelon after the step c sterilization is dried up the moisture on surface, its surface processing of waxing or film again;
E, the muskmelon after steps d the handled packing inside bag of packing into, vanning is again carried out pre-cold-peace fresh-retaining preserving transportation and is got final product.
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| CN107333866A (en) * | 2017-06-16 | 2017-11-10 | 合肥岭牧农产品有限公司 | A kind of meat products method for disinfection |
| CN109006976A (en) * | 2018-07-27 | 2018-12-18 | 新疆域奇生物科技开发有限公司 | Muskmelon adopts rear field microwave heating appts and method |
| CN111631257A (en) * | 2020-06-30 | 2020-09-08 | 贵阳学院 | Method for prolonging freshness date of fruits and edible fungi |
| CN112075491A (en) * | 2020-09-02 | 2020-12-15 | 衡阳市红彤彤农副产品有限公司 | Agricultural product refrigeration preservation method |
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| CN1589683A (en) * | 2004-01-08 | 2005-03-09 | 浙江教育学院 | Fresh bamboo shoot antistaling method |
| CN1718007A (en) * | 2005-05-18 | 2006-01-11 | 山东驰中集团有限公司 | Quick sterilization method for vegetable preservation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1589683A (en) * | 2004-01-08 | 2005-03-09 | 浙江教育学院 | Fresh bamboo shoot antistaling method |
| CN1718007A (en) * | 2005-05-18 | 2006-01-11 | 山东驰中集团有限公司 | Quick sterilization method for vegetable preservation |
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