CN102845514A - Method for inhibiting Huangguan pear pericarp browning - Google Patents
Method for inhibiting Huangguan pear pericarp browning Download PDFInfo
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- CN102845514A CN102845514A CN2012103545006A CN201210354500A CN102845514A CN 102845514 A CN102845514 A CN 102845514A CN 2012103545006 A CN2012103545006 A CN 2012103545006A CN 201210354500 A CN201210354500 A CN 201210354500A CN 102845514 A CN102845514 A CN 102845514A
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- huangguan pear
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Abstract
The invention relates to a fruit fresh-keeping method, and especially discloses a method for inhibiting Huangguan pear pericarp browning. The method for inhibiting Huangguan pear pericarp browning is characterized by: using hydrogen peroxide to treat Huangguan pears, then conducting packaging, lowering the temperature to carry out low-temperature storage, and performing circulation and selling. The method for inhibiting Huangguan pear pericarp browning provided in the invention has the beneficial effects that: first, it has a good effect of inhibiting Huangguan pear pericarp browning, can reach an inhibiting rate of 99%, and experiments show that a control group that is cooled directly without any treatment has a browning rate up to 80%; and second, the storage and fresh-keeping effects are good, the storage quality is better than that of the control group subjected to slow cooling, and the hydrogen peroxide is in food grade or pharmaceutical grade, and has high security.
Description
Technical field
The present invention relates to a kind of method of fruit fresh-keeping, particularly a kind of method that suppresses browning of peel of yellow-crowned pearl.
Background technology
Huangguan Pear is the important pear cultivation kind of China, and its completely filled fruit, pulp are pure white, and core is little, meat is fine and smooth, crisp, local flavor sour-sweet is moderate and have strong fragrance, is subject to consumers in general's favor, and Huangguan Pear has become the main pears kind of China's production, processing and export abroad.Yet Huangguan Pear is in maturity period and storage early stage, and fruit surface easily produces the pericarp foxiness, present irregularly shaped, like shank, therefore named " shank is sick ".Sick fruit exterior quality extreme difference, commodity value reduces greatly, causes very large economic loss often for orchard worker and fresh-keeping enterprise.
In order to keep the quality of Huangguan Pear, need after adopting to be cooled to as early as possible about 0 ℃, can obviously increase the weight of the generation that pericarp browning is the shank disease again yet adopt rear rapid cooling.
The new method of browning of peel of yellow-crowned pearl mainly is slow cooling in preventing from preserving in the at present commodity production, this method has suppressed the brown stain of pericarp more effectively, but its operation is trouble, cooling needs 15～20 days, because cooling is slow, the pears quality obviously reduces, and the withered rate of anaphase storage or outbound shelf stage rotting rate, carpopodium is all higher, and the fruit taste is also bad.
In the document at home and abroad, less about the information that suppresses the brown stain of Huangguan Pear postharvest storage mesocarp, the new method that alleviates pericarp browning also has precooling, controlled atmosphere, soaks calcium, 1-MCP processes etc., has single method to process multiple treatment is also arranged.Precooling treatment is Huangguan Pear to be put in be higher than under the reserve temperature condition, for example 8 ℃, is down to low temperature after 5～10 days again, the method is similar to slow cooling, also is to alleviate brown stain by alleviating thermal stimulus, and this method cooling is slow, complex operation affects the quality of pears.Forefathers in test, using too high CO2 exudative type PE preservative film, common PE preservative film, modified form PVC fresh-preserving film, functional low-density polyethylene film, polyvinyl chloride preservative film to carry out controlled atmosphere processes, controlled atmosphere is processed the brown stain that has alleviated to a certain extent the Huangguan Pear pericarp, but the controlled atmosphere method is had relatively high expectations to packaging material, packing method, so effect is limited.Calcium energy delayed fruit is old and feeble, reduces physiological disease, suppresses the inner brown stain of fruit.Chinese patent application CN200910227838.3 has reported that soaking the calcium processing can alleviate browning of peel of yellow-crowned pearl, there are apple, pears after research is found to pluck to fumigate 18～24 hours with 500～1000 nLL-1 1-MCP, and then with 3～6% CaCl2 aqueous solution soaking 3～5 minutes, after pulling drying out, according to a conventional method refrigeration, this compound new method has kept good storage quality, but prevents that the pericarp browning effect is limited, and the operation hell to pay.Chinese patent application CN 102132724 discloses and has adopted the stifling pericarp browning that suppresses Huangguan Pear of ethylene gas, successful, but this processing needs to carry out under the relative air-proof condition.Chinese patent application CN 101990935 discloses Huangguan Pear and has adopted rear first application of vacuum, and then adopts the mode of condition of normal pressure borehole cooling to suppress the pericarp browning of Huangguan Pear, and the use of patented method needs vaccum-pumping equipment, complicated operation, and cost is high.Chinese patent application CN 102077863 discloses use 0.5-10% sodium chloride solution and has carried out immersion treatment Huangguan Pear 0.5-5h, can obviously suppress browning of peel of yellow-crowned pearl, and there be trouble, the residual problem of salt marsh used in the method.
Summary of the invention
The invention provides a kind of simple to operate and can effectively keep the new method of the inhibition browning of peel of yellow-crowned pearl of the good storage quality of Huangguan Pear.
The present invention is achieved through the following technical solutions:
A kind of method that suppresses browning of peel of yellow-crowned pearl is characterized in that: use hydrogen peroxide (H
2O
2) process Huangguan Pear, then Huangguan Pear is packed, be down to again cryopreservation, circulation or sale.
Described H of the present invention
2O
2Be 0.005% ~ 5% H
2O
2Solution, the aqueous solution preferably.H
2O
2Be food-grade or pharmaceutical grade.The present invention does not have special requirement to described water, and preferred, water is drinkable water, comprises mineralized water, pure water, purifies waste water.
Preferably, described processing Huangguan Pear is to carry out immersion treatment after gathering.
Preferably, described processing Huangguan Pear is to spray processing after gathering.
Preferably, described processing Huangguan Pear is to spray processing in 10 days before gathering.Preferred, Huangguan Pear was gathered front 2-9 days, sprayed and processed.
Described use H
2O
2Solution immersion treatment Huangguan Pear, the processing time does not have strict restriction, generally is less than 30 minutes, preferably is less than 10 minutes, more preferably is less than 3 minutes.
Use H
2O
2Behind the solution-treated Huangguan Pear, pack after should drying or dry.Packing can be 1 ~ 2 layer of common tin foil of pears single fruit bag, puts into packing case behind the cover net, perhaps puts into packing case behind the single fruit cover net.
Preferably, described packing case is the packing case of liner freshness protection package.The pears freshness protection package that the liner freshness protection package can use for routine can be the freshness protection package of the materials such as polyethylene, polyvinyl chloride, does not have specific (special) requirements.Freshness protection package Origuchi during packing, the packing case sealing.
Use H
2O
2Processing Huangguan Pear another kind method is, after Huangguan Pear is gathered, uses H
2O
2Fumigate processing, the stifling consumption of processing is for being the hydrogen peroxide that 0.1 ~ 20g is used in every cubic metre of space.Commercially available hydrogenperoxide steam generator concentration is generally 30% ~ 40%, and described fumigating can use the hydrogenperoxide steam generator of above-mentioned concentration to fumigate.
Described fumigating can be with H
2O
2Dropping is put into packing case on filter paper, gauze, tin foil etc., volatilization produces gaseous hydrogen peroxide and fumigates processing.
Described fumigating can also be to use solid H
2O
2Sustained release agent is fumigated processing.Described solid hydrogen peroxide sustained release is take the solid hydrogen peroxide adduct as host, adds solid weak acid, absorbent material and auxiliary agent by certain proportioning and forms.
Described stifling generally carry out in relative sealed environment is such as in the packing case of liner freshness protection package or the large account of plastics, sealing storehouse etc.
Preferably, will contain H
2O
2Filter paper, gauze, tin foil or solid hydrogen peroxide sustained release directly put into packing case.Packing case is the packing case of liner freshness protection package.The pears freshness protection package that the liner freshness protection package can use for routine can be the freshness protection package of the materials such as polyethylene, polyvinyl chloride, does not have specific (special) requirements.Freshness protection package Origuchi during packing, the packing case sealing.Preferably, medicament is placed on the centre position of packing case.
Described low temperature is-2 ~ 2 ℃.
Described cryopreservation, transportation and sale, preferably fast cooling is preserved, is transported and sell to-2 ~ 2 ℃ after the packing.
In the said method, used Huangguan Pear be without pericarp foxiness, machinery-free hinder, without rot, without the fresh the operatic circle of wilting dehydration.
The present invention suppresses the beneficial effect of the method for browning of peel of yellow-crowned pearl: the one, suppress the effective of browning of peel of yellow-crowned pearl, and can suppress brown stain more than 99%.Experiment showed, the directly control group of cooling that is left intact, its browning rate can reach 80%; The 2nd, storage fresh-keeping effect is good, and storage quality is better than the control group of slow cooling; The 3rd, the used H of the method
2O
2For food-grade or pharmaceutical grade, safe, the hydrogen peroxide catabolite is the oxygen G﹠W, and is nontoxic.
The specific embodiment
The following example is to further specify of the present invention, but the invention is not restricted to this.
Embodiment 1
(1) pre-treatment: low-maturity (dyeing fruit rate 81% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Described dyeing fruit rate is, is applied to crosscut fruit face with 0.05～0.1mol/L iodine liquid, and the dyeing fruit accounts for the ratio of total fruit number) Huangguan Pear pluck after, select size evenly, without the pericarp foxiness, machinery-free hinders, without disease and pest, without lopsided the operatic circle.
(2) brown stain suppresses to process: use 0.005% H
2O
2Aqueous solution soaking was processed Huangguan Pear 30 minutes, then took out pears, dried.
(3) packing: after pears dry, wrap 1 layer of common tin foil single fruit cover net, in the carton of the liner PE freshness protection package of then Huangguan Pear being packed into, and with partition pears are separated, folding freshness protection package sack, carton seals.
(4) storage: rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; Contrast 1(H
2O
2The aqueous solution is processed, and packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) the browning of peel of yellow-crowned pearl rate reach 80%, contrast 2(H
2O
2The aqueous solution is processed, and packing is with above-mentioned processing, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, be cooled to-2 ~ 0 ℃, and preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 2
Pear fruit put into 0.01% H
2O
2In the aqueous solution, soaked 15 minutes, then take out and wipe moisture with gauze and dry.Other operations are with embodiment 1.
Preserve after 8 months, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; 1(is without H in contrast
2O
2The aqueous solution is processed, and directly is cooled to-2 ~ 0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%; 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to-2 ~ 0 ℃, and preserves in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 3
Pear fruit put into 5% H
2O
2In the aqueous solution, soaked 0.1 minute, then taking-up, drop water purification divide, dry.Other operations are with embodiment 1.
Preserve after 8 months, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain, and carpopodium is new, and the fruit brittleness is large, without rotting quality better; 1(is without H in contrast
2O
2The aqueous solution is processed, and directly is cooled to-2 ~ 0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%; 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to-2 ~ 0 ℃, and preserves in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 4
Pear fruit put into 1.0% H
2O
2In the aqueous solution, soaked 3 minutes, then take out pears, dry.Other operations are with embodiment 1.
Preserve after 8 months, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to-2 ~ 0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%; 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to-2 ~ 0 ℃, and preserves in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 5
Pear fruit put into 3% H
2O
2In the aqueous solution, soaked 2 minutes, then take out and wipe moisture with gauze and dry.Other operations are with embodiment 1.
Preserve after 8 months, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to-2 ~ 0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%; 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to-2 ~ 0 ℃, and preserves in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 6
The Huangguan Pear fruit put into 0.1% H
2O
2In the aqueous solution, soaked 5 minutes, then take out, dry.Other operations are with embodiment 1.
Preserve after 8 months, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to-2 ~ 0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%; 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to-2 ~ 0 ℃, and preserves in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 7
(1) pre-treatment: with embodiment 1.
(2) brown stain suppresses to process: use 0.005% H
2O
2Aqueous solution soaking was processed Huangguan Pear 30 minutes, took out pears, then did with wind.
(3) packing: after pears dried up, single fruit jacket net in the carton of the lined with PVC freshness protection package of then Huangguan Pear being packed into, and separated pears with partition, folding freshness protection package sack, carton sealing.
(4) storage: rapidly Huangguan Pear having boxing is directly put into 0 ~ 2.0 ℃ of freezer, after the cooling and in this temperature storage.
Preserve after 6 months, use according to the method described above H
2O
2The not brown stain of Huangguan Pear pericarp that the aqueous solution is processed, fruit face mass color is good, and the fruit brittleness is large, and carpopodium is fresh, quality better; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to 0 ~ 2.0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%, 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to 0 ~ 2.0 ℃, and preserves in this temperature) the pericarp browning rate be 2%, but the operatic circle perfume (or spice) is very light, fruit face mass color is poor, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 8
The Huangguan Pear fruit put into 5% H
2O
2In the aqueous solution, soaked 3 minutes, then take out with wind and do.Other operations are with embodiment 7.
Preserve after 6 months, use according to the method described above H
2O
2The not brown stain of Huangguan Pear pericarp that the aqueous solution is processed, fruit face mass color is good, and the fruit brittleness is large, and carpopodium is fresh, quality better; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to 0 ~ 2.0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%, 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to 0 ~ 2.0 ℃, and preserves in this temperature) the pericarp browning rate be 2%, but the operatic circle perfume (or spice) is very light, fruit face mass color is poor, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 9
The Huangguan Pear fruit put into 3% H
2O
2In the aqueous solution, soaked 1 minute, then take out with wind and do.Other operations are with embodiment 7.
Preserve after 6 months, use according to the method described above H
2O
2The not brown stain of Huangguan Pear pericarp that the aqueous solution is processed, fruit face mass color is good, and the fruit brittleness is large, and carpopodium is fresh, quality better; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to 0 ~ 2.0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%, 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to 0 ~ 2.0 ℃, and preserves in this temperature) the pericarp browning rate be 2%, but the operatic circle perfume (or spice) is very light, fruit face mass color is poor, brittleness is little, rotting rate is 10%, carpopodium is withered serious.
Embodiment 10
The Huangguan Pear fruit put into 1% H
2O
2In the aqueous solution, soaked 0.5 minute, then take out with wind and do.Pre-treatment and packing are with embodiment 7.Then pears are put in-1.0 ~ 0 ℃ the freezer and carried out precooling, the fruit temperature is down to 0 ℃ after 5 ~ 8 days, lowers the temperature and remains on-1.0 ~ 0 ℃ of storages, transportation, sells.
Through one-month period, use according to the method described above H
2O
2The Huangguan Pear pericarp that the aqueous solution is processed is without brown stain; And contrast 1(is without H
2O
2The aqueous solution is processed, and directly is cooled to-1.0 ~ 0 ℃) the browning of peel of yellow-crowned pearl rate reach 80%; 2(is without H in contrast
2O
2The aqueous solution is processed, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, is cooled to-1.0 ~ 0 ℃, and preserves, transport and sell in this temperature) the browning of peel of yellow-crowned pearl rate be 5%.
Embodiment 11
(1) adopts pre-treatment
Huangguan Pear before gathering 10 days, fruit quality have approached or have reached low-maturity (dyeing fruit rate 70% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Described dyeing fruit rate is, is applied to crosscut fruit face with 0.05～0.1mol/L iodine liquid, and the dyeing fruit accounts for the ratio of total fruit number), the H of use 0.1%
2O
2The aqueous solution sprays fruit.
(2) pluck packing
Plucked afterwards in 10 days, and selected size evenly, without the pericarp foxiness, machinery-free hinders, without disease and pest, without the operatic circle of deformity, 2 layers of common tin foil of pear fruit bag, the cover net is in the carton of the liner PE freshness protection package of then Huangguan Pear being packed into, and with partition pears are separated folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; Before adopting, contrast 1(do not carry out H
2O
2Spray to process, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) the browning of peel of yellow-crowned pearl rate reach 80%, do not carry out H before contrast 2(adopts
2O
2Spray and process, packing is with above-mentioned processing, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, be cooled to-2 ~ 0 ℃, and preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 12
(1) adopts pre-treatment
Huangguan Pear before gathering 5 days, fruit quality have reached low-maturity (dyeing fruit rate 70% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Described dyeing fruit rate is, is applied to crosscut fruit face with 0.05～0.1mol/L iodine liquid, and the dyeing fruit accounts for the ratio of total fruit number), the H of use 0.5%
2O
2The aqueous solution sprays fruit.
(2) pluck packing
Plucked afterwards in 5 days, and selected size evenly, without the pericarp foxiness, machinery-free hinders, without disease and pest, without the operatic circle of deformity, 2 layers of common tin foil of pear fruit bag, the cover net is in the carton of the liner PE freshness protection package of then Huangguan Pear being packed into, and with partition pears are separated folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; Before adopting, contrast 1(do not carry out H
2O
2Spray to process, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) the browning of peel of yellow-crowned pearl rate reach 80%, do not carry out H before contrast 2(adopts
2O
2Spray and process, packing is with above-mentioned processing, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, be cooled to-2 ~ 0 ℃, and preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 13
(1) adopts pre-treatment
Huangguan Pear before gathering 2 days, fruit quality have reached low-maturity (dyeing fruit rate 70% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Described dyeing fruit rate is, is applied to crosscut fruit face with 0.05～0.1mol/L iodine liquid, and the dyeing fruit accounts for the ratio of total fruit number), the H of use 5%
2O
2The aqueous solution sprays fruit.
(2) pluck packing
Plucked afterwards in 5 days, and selected size evenly, without the pericarp foxiness, machinery-free hinders, without disease and pest, without the operatic circle of deformity, 2 layers of common tin foil of pear fruit bag, the cover net is in the carton of the lined with PVC freshness protection package of then Huangguan Pear being packed into, and with partition pears are separated folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; Before adopting, contrast 1(do not carry out H
2O
2Spray to process, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) the browning of peel of yellow-crowned pearl rate reach 80%, do not carry out H before contrast 2(adopts
2O
2Spray and process, packing is with above-mentioned processing, and entering the Kuku temperature is 9 ℃, and lower the temperature 1 ℃ every day behind the warehouse-in, be cooled to-2 ~ 0 ℃, and preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and alcohol smell is arranged, brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 14
(1) pre-treatment: with embodiment 1.
(2) the stifling processing: the naked fruit of pears is put into 0.1m
3The sealing antistaling box in, use the consumption of 0.34g to add 30% H according to every cubic metre of space
2O
2, then stifling 96 hours of sealing takes out.
(3) packing: will fumigate the 2 layers of common tin foil of Huangguan Pear bag after the processing, and overlap again net, and in the carton of the liner PE freshness protection package of then Huangguan Pear being packed into, and pears be separated folding freshness protection package sack, carton sealing with partition.
(4) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the browning of peel of yellow-crowned pearl rate of processing according to the method described above is 9%, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 15
(1) pre-treatment: with embodiment 1.
(2) the stifling processing: the naked fruit of pears is put into 1 m
3The sealed plastic account in, add 40% H
2O
2Solution 10g,, then stifling 12 hours of sealing takes out.
(3) packing: will fumigate the 2 layers of common tin foil of Huangguan Pear bag after the processing, and overlap again net, and in the carton of the liner PE freshness protection package of then Huangguan Pear being packed into, and pears be separated folding freshness protection package sack, carton sealing with partition.
(4) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the browning of peel of yellow-crowned pearl rate of processing according to the method described above is 1%, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 16
(1) pre-treatment: with embodiment 1.
(2) the stifling processing: the naked fruit of pears is put into 1 m
3The sealed plastic account in, add 40% H
2O
2Solution 50g, stifling 8 hours of sealing is taken out.
(3) packing: will fumigate the 2 layers of common tin foil of Huangguan Pear bag after the processing, and overlap again net, and in the carton of the liner PE freshness protection package of then Huangguan Pear being packed into, and pears be separated folding freshness protection package sack, carton sealing with partition.
(4) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 17
(1) pre-treatment: with embodiment 1.
(2) packing and stifling processing the: with 2 layers of common tin foil of Huangguan Pear single fruit bag, overlap again net, Huangguan Pear is packed in the packing case of 45L of liner PE freshness protection package, and with partition pears are separated, pack into 50% time when Huangguan Pear, drip concentration and be 30% H
2O
2Solution 0.1g puts it into the packing case middle part on filter paper, continue to put into Huangguan Pear again, folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 18
(1) pre-treatment: with embodiment 1.
(2) packing and stifling processing the: with 1 layer of common tin foil cover net of Huangguan Pear single fruit bag, Huangguan Pear is packed in the 45L packing case of liner PE freshness protection package, and with partition pears are separated, pack into 50% time when Huangguan Pear, drip concentration and be 30% H
2O
2Solution 0.5g puts it into the packing case middle part on filter paper, continue to put into Huangguan Pear again, folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 19
(1) pre-treatment: with embodiment 1.
(2) packing and stifling processing the: with 1 layer of common tin foil cover net of Huangguan Pear single fruit bag, Huangguan Pear is packed in the 45L packing case of liner PE freshness protection package, and with partition pears are separated, pack into 50% time when Huangguan Pear, drip concentration and be 30% H
2O
2Solution 3.0g puts into the packing case middle part in the lump with it on gauze, continue to put into Huangguan Pear again, folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 20
(1) pre-treatment: with embodiment 1.
(2) packing and stifling processing the: with 1 layer of common tin foil cover net of Huangguan Pear single fruit bag, Huangguan Pear is packed in the 45L packing case of liner PE freshness protection package, and with partition pears are separated, when Huangguan Pear is packed into 50% the time, solid hydrogen peroxide sustained release 2 bags that content is 1.1%, loading amount is the 3.0g/ bag are put into the packing case middle part, continue again to put into Huangguan Pear, folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 21
(1) pre-treatment: with embodiment 1.
(2) packing and stifling processing the: with 2 layers of common tin foil cover net of Huangguan Pear single fruit bag, Huangguan Pear is packed in the 45L packing case of liner PE freshness protection package, and with partition pears are separated, when Huangguan Pear is packed into 50% the time, content is 10%, loading amount is the 3.0g/ bag solid hydrogen peroxide sustained release is put in the middle part of the packing case with the consumption of 1 bag/case, continue again to put into Huangguan Pear, folding freshness protection package sack, carton sealing.
(3) storage
Rapidly Huangguan Pear having boxing is directly put into-2 ~ 0 ℃ of fresh-keeping warehouses, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 22
(1) pre-treatment: with embodiment 1.
(2) packing and stifling processing the: with 1 layer of common tin foil cover net of Huangguan Pear single fruit bag, Huangguan Pear is packed in the 45L packing case of liner PE freshness protection package, and with partition pears are separated, when Huangguan Pear is packed into 50% the time, the solid hydrogen peroxide sustained release that with content is 1.5%, 1.5g/ bag is put in the middle part of the packing case with the consumption of 4 bag/casees, continues to put into Huangguan Pear again, folding freshness protection package sack, the carton sealing.
(3) storage
Fast Huangguan Pear having boxing is directly put into 0 ~ 2 ℃ of fresh-keeping warehouse, after the pears cooling and in this temperature storage, relative humidity is controlled at 60 ~ 70%.
Preserve after 8 months, the Huangguan Pear pericarp of processing according to the method described above is without brown stain, and carpopodium is fresh, and the fruit brittleness is large, without rotting quality better; The browning of peel of yellow-crowned pearl rate of contrast 1 reaches 80%, and the browning of peel of yellow-crowned pearl rate of contrast 2 is 4%, but the operatic circle perfume (or spice) is light, and alcohol smell is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Claims (9)
1. a method that suppresses browning of peel of yellow-crowned pearl is characterized in that: use the hydrogen peroxide treatment Huangguan Pear, then Huangguan Pear is packed, be down to cryopreservation, circulation or sale again.
2. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1, it is characterized in that: described hydrogen peroxide is 0.005% ~ 5% hydrogenperoxide steam generator; Described hydrogenperoxide steam generator is preferably the aqueous solution.
3. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1 and 2, it is characterized in that: described processing Huangguan Pear is to carry out immersion treatment after gathering.
4. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1 and 2, it is characterized in that: described processing Huangguan Pear is to spray processing after gathering.
5. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1 and 2 is characterized in that: described processing Huangguan Pear is, sprays processing in 10 days before gathering, and is preferred, in 2 ~ 9 days, sprays and processes before Huangguan Pear is gathered.
6. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1 is characterized in that: described processing Huangguan Pear is after Huangguan Pear is gathered, to use hydrogen peroxide to fumigate processing.
7. the method for inhibition browning of peel of yellow-crowned pearl according to claim 6 is characterized in that: the consumption of described stifling processing is that 0.1 ~ 20g hydrogen peroxide is used in every cubic metre of space.
8. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1, it is characterized in that: described low temperature is-2 ~ 2 ℃, and is preferred, is down to fast low temperature-2 ~ 2 ℃.
9. the method for inhibition browning of peel of yellow-crowned pearl according to claim 1 is characterized in that described packing, is to put into packing case behind 1 ~ 2 layer of tin foil of pears single fruit bag and the net again, perhaps puts into packing case behind the single fruit cover net again.
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| CN2012103545006A CN102845514A (en) | 2012-09-22 | 2012-09-22 | Method for inhibiting Huangguan pear pericarp browning |
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