CN105028619A - Modified-atmosphere preservation method for bitter gourds - Google Patents
Modified-atmosphere preservation method for bitter gourds Download PDFInfo
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- CN105028619A CN105028619A CN201510437894.5A CN201510437894A CN105028619A CN 105028619 A CN105028619 A CN 105028619A CN 201510437894 A CN201510437894 A CN 201510437894A CN 105028619 A CN105028619 A CN 105028619A
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Abstract
The invention discloses a modified-atmosphere preservation method for bitter gourds. The method includes the following steps of raw material pretreatment, bagging, gas-filled packaging, sterilization and storage and transportation. By adopting a modified-atmosphere packaging technology and adjusting gas compositions in a packaging storage environment, growth and metabolism of microorganisms can be effectively restrained; meanwhile, by controlling temperature and improving a pretreatment and packaging process, cold damage, ethylene ripening and decaying of the bitter gourds are avoided. According to the modified-atmosphere packaging technology, the non-poisonous, non-harmful and no-residual effects are achieved, non-harmful treatment is adopted in the whole preservation process, the usage of poisonous chemical agents is avoided, and therefore no harmful influence on the bitter gourds exists. By means of the method, the defects of the prior art are overcome, the original freshness, color and luster and flavor of the bitter gourds can be kept, the shelf life of the bitter gourds can be prolonged, and the easily appearing problems that due to extremely low O2 concentration and extremely high CO2 content, the bitter gourds suffer oxygen deficit, and breathing disorders are caused in the modified-atmosphere preservation process of the bitter gourds can be solved.
Description
Technical field
The present invention relates to technical field of preservation of fresh, be specifically related to a kind of method of controlled atmosphere balsam pear.
Background technology
Balsam pear has another name called balsam pear, it is cucurbitaceous plant, for annual climbing herb, edible, having very high value, is a kind of based on autumn in the summer vegetables of edible tender melon, ripe in temperature higher 7, August, and belonging to climacteric type fruit, under normal temperature, the vigorous very easily xanthochromia of respiration of fruits metabolism rots, thus loses edibility and commodity value.But balsam pear is again a kind of low-temperature sensitive type vegetables, very sensitive for low temperature, more than 10 DEG C, during condition storage, respiration of fruits is vigorous, and freshness date is very short, preserves and easily damage to plants caused by sudden drop in temperature again below 10 DEG C.Thus, balsam pear is the vegetables that storage difficulty is larger.At present, the preservation method of comparatively conventional balsam pear roughly has following several:
Low temperature storage method: exactly balsam pear is put into low-temperature cold store and preserve, thus reach the object extending its storage period.But balsam pear is very responsive to low temperature, cryopreservation can cause the phenomenon that damages to plants caused by sudden drop in temperature of fruits and vegetables ripening period to produce water stain shape spot and corrupt spot, lose commodity value, and cost of investment is high, by force technical, and low temperature power consumption, plant maintenance and management cost are all higher.
Chemical treatment method: namely use the chemical agent of some tool antibacterial and bacteriostasis spray or be applied in balsam pear surface, suppress it to rot.But Chemical treatment storage can produce medicament residue in fruits and vegetables, causes certain harm to human body.
Preservative film pack: wrapped up by balsam pear with antistaling film, can slow down the speed that balsam pear dehydration is wilted, reach fresh-keeping effect.But Momordica climacteric type fruit, particularly responsive to ethene, pack for a long time, ethene gathers, and easily causes balsam pear respiration to accelerate, more perishable rotten.
At present, preservation technique makes rapid progress, in numerous preservation technique, controlled atmosphere technology is the best technology of fresh-keeping effect and fresh keeping time, but the topmost problem that at present controlled atmosphere technology exists controls oxygen content wherein and carbon dioxide content, if oxygen content is too low, can anaerobic fermentation be caused, cause botulinal growth, if the too low fresh-keeping effect of carbon dioxide content is not obvious, too high, can intoxicating phenomenon be caused, thus tissue is come to harm.
This several method all also exists deficiency and the shortcoming of self as from the foregoing.Therefore, solve better adopt after balsam pear preservation and freshness problem to before sales particularly important.The present inventor is by large quantifier elimination and experiment, propose a kind of method of novel controlled atmosphere balsam pear, effectively can solve the balsam pear metabolism existed in balsam pear controlled atmosphere technology and release carbon dioxide, increase carbon dioxide content and cause balsam pear poisoning, organize the problem come to harm.
Summary of the invention
The present invention aims to provide a kind of method of controlled atmosphere balsam pear, the problem that being subject to of existing in numerous balsam pear preservation technique is damaged to plants caused by sudden drop in temperature to solve, fresh chemically medicament pollutes, ethene accelerates the ripening, make balsam pear can keep original freshness, color and luster and local flavor, extend its shelf life, overcome the O easily occurred in balsam pear controlled atmosphere process
2concentration is too low, CO
2too high, make product anoxic, cause the problem of breathing imbalance.
The present invention is achieved by the following technical programs:
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon during the 7-8 that gathers becomes, retain 2-3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carries out precooling treatment, through selecting after precooling treatment completes, remove and have damaged melon body, then be the Ozone Water washing and sterilizing of 0.3mg/L through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitutes in pack or transparent controlled atmospheric packing box, and put into antistaling agent;
C, gas flush packaging: use gas-control packing device to inflate according to the balsam pear of controlled atmosphere ratio to pack or mounted box, and sealing or overlay film packaging;
D, sterilization: packaged balsam pear is carried out ultraviolet sterilization process;
E, storing: the package after sterilization is transported to Storage in cold bank.
In described step a, the temperature of precooling treatment is 10-12 DEG C, and the processing time is 10-15min.
Antistaling agent in described step b is (2-3.5) by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio: the ratio of (1-2.5) mixes, and addition is the 1.2-2.9% of the balsam pear quality loaded.
Described antistaling agent is 2:(1-1.5 by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio) ratio mix, addition is the 1.8-2.9% of the balsam pear quality loaded.
Described antistaling agent is 3:(1.5-2 by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio) ratio mix, addition is the 1.5-2.6% of the balsam pear quality loaded.
Described antistaling agent is 3.5:(2-2.5 by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio) ratio mix, addition is the 1.2-2.3% of the balsam pear quality loaded.
Controlled atmosphere ratio in described step c is N
2: O
2: CO
2=(91-93) %:(4.5-5.5) %:(2-4) %.
Adopt 25W uviol lamp to carry out ultraviolet sterilization process in described steps d, control irradiation distance is 1.5-2.0m, and irradiation time is 20-25min.
In described step e, the temperature of package Storage in cold bank controls as 10-13 DEG C, and relative humidity is 85-90%.
Beneficial effect of the present invention is: by control CO
2and O
2content effectively inhibits balsam pear respiration and other metabolism, delays balsam pear ripe and old and feeble, keeps quality, low O
2content can the biosynthesis of ethene suppressing, weaken the biological agent of ethene, reduce vitamin, glutathione, the oxidation of cysteine etc., keep nutritive value, suppress physiological disease and the pathologic disease of balsam pear, improve the resistance against diseases of balsam pear, this method adopts controlled atmospheric packing technology by gas componant in adjustment packaging storage environment, suppress microbial growth accretion rate, pass through control temperature simultaneously, improvement pre-treatment and technology of the package prevent it from damaging to plants caused by sudden drop in temperature, ethene accelerates the ripening, the problem rotted, the nontoxic noresidue of this controlled atmospheric packing technology, harmless treatment is adopted in whole preservation process, avoid using toxic chemical medicament, any injurious effects are not had to balsam pear, this method overcomes the deficiencies in the prior art, the original freshness of balsam pear can be kept, color and luster and local flavor, extend its shelf life, under the fresh bitter product of gas flush packaging is generally held in low temperature, once put into normal temperature environment, temperature rises will cause that respiratory intensity is too high makes product anoxic, cause breathing imbalance, therefore in the present invention by adding antistaling agent to improve, conventional antistaling agent is mostly carbendazim, thiophanate, the organic bactericides such as biphenyl, anticorrisive agent, though these antistaling agents respectively have advantage, but because treating capacity is large and produce organic substance residues to fruit surface, harmful and be limited or prohibit the use, and the problem that product breathes imbalance cannot be solved, and the antistaling agent not only environmental protection in the present invention, and calper calcium peroxide wherein can also be converted into oxygen by absorbing carbon dioxide, overcoming product due to temperature Change causes expiration intensity too high, anoxic causes the problem of breathing imbalance.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme of the present invention is further described, but described in claimed scope is not limited to.
Embodiment 1
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 7 one-tenth of gathering, retain 2cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 10 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into the antistaling agent mixed according to the ratio that mass ratio is 2:1 by 1-methyl cyclopropene and calper calcium peroxide, addition is 1.8% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=91%:5.5%:3.5% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.5m, and irradiation time is 20min;
E, storing: the package after sterilization is transported to temperature and controls to be 10 DEG C of Storage in cold banks.
Embodiment 2
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 8 one-tenth of gathering, retain 3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 10 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into the antistaling agent mixed according to the ratio that mass ratio is 2:1 by 1-methyl cyclopropene and calper calcium peroxide, addition is 2.9% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=93%:4.5%:2.5% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.6m, and irradiation time is 20min;
E, storing: the package after sterilization is transported to temperature and controls to be 11 DEG C of Storage in cold banks.
Embodiment 3
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 7 one-tenth of gathering, retain 2cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 11 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3:1.5, addition is 1.5% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=92%:5%:3% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.7m, and irradiation time is 20min;
E, storing: the package after sterilization is transported to temperature and controls to be 10 DEG C of Storage in cold banks.
Embodiment 4
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 8 one-tenth of gathering, retain 3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 12 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3:1.5, addition is 2.6% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=92.5%:5.5%:2% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.8m, and irradiation time is 21min;
E, storing: the package after sterilization is transported to temperature and controls to be 11 DEG C of Storage in cold banks.
Embodiment 5
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 7 one-tenth of gathering, retain 3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 10 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3.5:2, addition is 1.2% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=91.5%:4.5%:4% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.9m, and irradiation time is 22min;
E, storing: the package after sterilization is transported to temperature and controls to be 12 DEG C of Storage in cold banks.
Embodiment 6
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 8 one-tenth of gathering, retain 2cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 12 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3.5:2, addition is 2.3% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=91%:5%:4% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 2.0m, and irradiation time is 20min;
E, storing: the package after sterilization is transported to temperature and controls to be 13 DEG C of Storage in cold banks.
Embodiment 7
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 7 one-tenth of gathering, retain 2cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 10 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into the antistaling agent mixed according to the ratio that mass ratio is 2:1.5 by 1-methyl cyclopropene and calper calcium peroxide, addition is 1.8% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=91%:5.5%:3.5% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.5m, and irradiation time is 25min;
E, storing: the package after sterilization is transported to temperature and controls to be 10 DEG C of Storage in cold banks.
Embodiment 8
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 8 one-tenth of gathering, retain 3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 10 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into the antistaling agent mixed according to the ratio that mass ratio is 2:1.5 by 1-methyl cyclopropene and calper calcium peroxide, addition is 2.9% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=93%:4.5%:2.5% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.6m, and irradiation time is 24min;
E, storing: the package after sterilization is transported to temperature and controls to be 11 DEG C of Storage in cold banks.
Embodiment 9
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 7 one-tenth of gathering, retain 2cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 11 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitutes in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3:2, addition is 1.5% of the balsam pear quality of loading;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=92%:5%:3% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.9m, and irradiation time is 23min;
E, storing: the package after sterilization is transported to temperature and controls to be 10 DEG C of Storage in cold banks.
Embodiment 10
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 8 one-tenth of gathering, retain 3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 12 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitutes in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3:2, addition is 2.6% of the balsam pear quality of loading;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=92.5%:5.5%:2% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 2.0m, and irradiation time is 23min;
E, storing: the package after sterilization is transported to temperature and controls to be 11 DEG C of Storage in cold banks.
Embodiment 11
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 7 one-tenth of gathering, retain 3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 10 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3.5:2.5, addition is 1.2% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=91.5%:4.5%:4% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.8m, and irradiation time is 23min;
E, storing: the package after sterilization is transported to temperature and controls to be 12 DEG C of Storage in cold banks.
Embodiment 12
A method for controlled atmosphere balsam pear, the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon in 8 one-tenth of gathering, retain 2cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carry out precooling treatment, the temperature of precooling treatment is 12 DEG C, through selecting after precooling treatment completing, removing and having damaged melon body, be the Ozone Water washing and sterilizing of 0.3mg/L again through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitute in pack or transparent controlled atmospheric packing box, and put into and mix antistaling agent by 1-methyl cyclopropene and calper calcium peroxide according to the ratio that mass ratio is 3.5:2.5, addition is 2.3% of the balsam pear quality loaded;
C, gas flush packaging: use gas-control packing device to be N according to controlled atmosphere ratio
2: O
2: CO
2the balsam pear of ratio to pack or mounted box of=91%:5%:4% is inflated, and sealing or overlay film packaging;
D, sterilization: adopt 25W uviol lamp that packaged balsam pear is carried out ultraviolet sterilization process, control irradiation distance is 1.7m, and irradiation time is 22min;
E, storing: the package after sterilization is transported to temperature and controls to be 13 DEG C of Storage in cold banks.
Below in conjunction with specific experiment example, the present invention will be further described:
Experimental example 1
Adopt low temperature storage method, preservative film pack, conventional controlled atmosphere method, preservation method of the present invention, carry out preserve test to balsam pear, its experimental result is as shown in table 1 simultaneously:
Table 1 contrasts the fresh-keeping effect of balsam pear and fresh keeping time without preservation method
Air regulating fresh-keeping method and this method are far superior to other two kinds of preservation methods in fresh keeping time and fresh-keeping effect as seen from the above table, but fresh keeping time of the present invention is longer than the controlled atmosphere method fresh keeping time of routine again.
Experimental example 2
Balsam pear to be observed taking out to put into by conventional controlled atmosphere method and the fresh-keeping balsam pear of preservation method of the present invention in experimental example 1 under normal temperature state and to detect its result as shown in table 2:
To the contrast of balsam pear fresh-keeping effect after table 2 variations in temperature
As can be seen from the above table because temperature changes, the balsam pear fresh-keeping by conventional controlled atmosphere method starts after 8 days to occur that imbalance breathed by balsam pear in storing, there is intoxicating phenomenon, the situation that active ingredient generation fraction runs off, after 10 days, situation increases the weight of, and adopt the fresh-keeping balsam pear of preservation method of the present invention to be placed to 60 days all not occur any bad phenomenon always, illustrate when temperature uprises, the homemade antistaling agent of this preservation method effectively can control the respiratory metabolism intensity of balsam pear, balsam pear is allowed to keep balance, there will not be and breathe imbalance and intoxicating phenomenon, because selling of balsam pear needs the regular hour, usually sell at normal temperatures, and this method can overcome this problem completely, fresh keeping time is longer, fresh-keeping effect is better, it is far superior to conventional controlled atmosphere method.
Claims (9)
1. a method for controlled atmosphere balsam pear, is characterized in that: the method comprises the following steps:
A, pretreatment of raw material: ripe degree melon during the 7-8 that gathers becomes, retain 2-3cm carpopodium, handle with care when gathering, prevent machinery wound, the balsam pear of gathering is placed in Special-purpose basket, and carries out precooling treatment, through selecting after precooling treatment completes, remove and have damaged melon body, then be the Ozone Water washing and sterilizing of 0.3mg/L through concentration, air-dry melon surface moisture content;
B, pack: pretreated balsam pear is loaded special gas and stealthily substitutes in pack or transparent controlled atmospheric packing box, and put into antistaling agent;
C, gas flush packaging: use gas-control packing device to inflate according to the balsam pear of controlled atmosphere ratio to pack or mounted box, and sealing or overlay film packaging;
D, sterilization: packaged balsam pear is carried out ultraviolet sterilization process;
E, storing: the package after sterilization is transported to Storage in cold bank.
2. the method for controlled atmosphere balsam pear according to claim 1, is characterized in that: in described step a, the temperature of precooling treatment is 10-12 DEG C.
3. the method for controlled atmosphere balsam pear according to claim 1, it is characterized in that: the antistaling agent in described step b is (2-3.5) by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio: the ratio of (1-2.5) mixes, and addition is the 1.2-2.9% of the balsam pear quality loaded.
4. the method for controlled atmosphere balsam pear according to claim 3, it is characterized in that: described antistaling agent is 2:(1-1.5 by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio) ratio mix, addition is the 1.8-2.9% of the balsam pear quality loaded.
5. the method for controlled atmosphere balsam pear according to claim 3, it is characterized in that: described antistaling agent is 3:(1.5-2 by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio) ratio mix, addition is the 1.5-2.6% of the balsam pear quality loaded.
6. the method for controlled atmosphere balsam pear according to claim 3, it is characterized in that: described antistaling agent is 3.5:(2-2.5 by 1-methyl cyclopropene and calper calcium peroxide according to mass ratio) ratio mix, addition is the 1.2-2.3% of the balsam pear quality loaded.
7. the method for controlled atmosphere balsam pear according to claim 1, is characterized in that: the controlled atmosphere ratio in described step c is N
2: O
2: CO
2=(91-93) %:(4.5-5.5) %:(2-4) %.
8. the method for controlled atmosphere balsam pear according to claim 1, is characterized in that: adopt 25W uviol lamp to carry out ultraviolet sterilization process in described steps d, and control irradiation distance is 1.5-2.0m, and irradiation time is 20-25min.
9. the method for controlled atmosphere balsam pear according to claim 1, is characterized in that: in described step e, the temperature of package Storage in cold bank controls as 10-13 DEG C, and relative humidity is 85-90%.
Priority Applications (1)
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| CN105285071A (en) * | 2015-11-30 | 2016-02-03 | 高枫 | Living body fresh-keeping method for desertliving cistanche |
| CN105557985A (en) * | 2016-01-25 | 2016-05-11 | 贵阳学院 | Preservation method for gastrodia elata with soil |
| CN106070554A (en) * | 2016-06-23 | 2016-11-09 | 中国农业机械化科学研究院 | A kind of Fructus Momordicae charantiae controlled atmospheric packing preservation method |
| CN106578004A (en) * | 2016-11-30 | 2017-04-26 | 贵州向黔冲综合农业有限公司 | Fresh keeping method of vegetables during logistics transportation |
| CN106578022A (en) * | 2016-11-30 | 2017-04-26 | 贵阳学院 | Fresh keeping method of polygonum multiflorum sprouts or adenophora hunanensis sprouts |
| CN108094513A (en) * | 2017-12-22 | 2018-06-01 | 新疆农业科学院农产品贮藏加工研究所 | A kind of controlled atmospheric packing preservation method of green rind walnut |
| CN108607483A (en) * | 2018-04-28 | 2018-10-02 | 汉广中药科技（天津）有限公司 | A kind of Chinese medicine curing agent with oxygen slow release function and preparation method thereof and application method |
| CN111513130A (en) * | 2020-05-06 | 2020-08-11 | 湖北省农业科学院农产品加工与核农技术研究所 | Method for sterilizing and refreshing fruits and vegetables by combining modified atmosphere packaging with electrostatic field |
| US10966435B2 (en) | 2017-04-27 | 2021-04-06 | Jiangnan University | System for controlling low temperature injury of cold-sensitive fruit vegetables by combining intelligent pre-cooling and segmented controlled atmosphere storage |
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| CN108094513A (en) * | 2017-12-22 | 2018-06-01 | 新疆农业科学院农产品贮藏加工研究所 | A kind of controlled atmospheric packing preservation method of green rind walnut |
| CN108607483A (en) * | 2018-04-28 | 2018-10-02 | 汉广中药科技（天津）有限公司 | A kind of Chinese medicine curing agent with oxygen slow release function and preparation method thereof and application method |
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