CN102696754A - Method for inhibiting pericarp browning of Huangguan pears - Google Patents
Method for inhibiting pericarp browning of Huangguan pears Download PDFInfo
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- CN102696754A CN102696754A CN201210211245XA CN201210211245A CN102696754A CN 102696754 A CN102696754 A CN 102696754A CN 201210211245X A CN201210211245X A CN 201210211245XA CN 201210211245 A CN201210211245 A CN 201210211245A CN 102696754 A CN102696754 A CN 102696754A
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Abstract
The invention relates to a method for preserving fruits, and particularly discloses a method for inhibiting the pericarp browning of Huangguan pears. The method for inhibiting the pericarp browning of Huangguan pears is characterized in that: glutathione is used for processing Huangguan pears, and the Huangguan pears are then packaged, stored under low temperature, circulated and sold. The method for inhibiting the pericarp browning of Huangguan pears has the following advantages: (1) the effect of inhibiting the pericarp browning of Huangguan pears is good, and can reach 99 percent; and an experiment proves that the browning rate of an unprocessed and directly cooled contrast group can reach 80 percent; (2) the storing effect is good, the storage quality is better than the storage quality of a slowly cooled contrast group, and glutathione is of the food grade or the pharmaceutical grade, and therefore is highly safe.
Description
Technical field
The present invention relates to a kind of method of fruit fresh-keeping, particularly a kind of method that suppresses the brown stain of yellow hat worn by a Taoist priest the operatic circle skin.
Background technology
The yellow hat worn by a Taoist priest pears are the important pear cultivation kinds of China; Its fruit is satisfactory, pulp is pure white, and meat is fine and smooth, crisp, and local flavor sour-sweet is moderate and have strong fragrance; Receive consumers in general's favor, the yellow hat worn by a Taoist priest pears have become the principal item of China's production, processing and export abroad.Yet the yellow hat worn by a Taoist priest pears are in maturity period and storage early stage, and fruit surface is prone to the pericarp foxiness takes place, appear irregularly shaped, like shank, so name " shank disease ".Sick fruit exterior quality extreme difference, commodity value reduces greatly, often orchard worker and fresh-keeping enterprise is caused very large economy loss.
In order to keep the quality of yellow hat worn by a Taoist priest pears, need be cooled to as early as possible about 0 ℃ after adopting, be that shank is sick yet adopt back rapid cooling can obviously increase the weight of to occur again pericarp browning.
The method of yellow hat worn by a Taoist priest the operatic circle skin brown stain mainly is slow cooling in preventing to preserve in the commodity production at present; This method has suppressed the brown stain of pericarp more effectively, but its operation bothers, and cooling needs 15～20 days; Because cooling is slow; The pears quality obviously reduces, after storage later stage or the outbound in circulation and the shelf life rotting rate, the carpopodium rate that dries up all higher, the fruit taste is also bad.
In the document at home and abroad, less about the information that suppresses the brown stain of yellow hat worn by a Taoist priest pears postharvest storage mesocarp, the method that alleviates pericarp browning has precooling, controlled atmosphere, soaks calcium, 1-MCP handles etc., and having single method to handle also has complex method to handle.Precooling treatment is the yellow hat worn by a Taoist priest pears to be put in be higher than under the reserve temperature condition, for example 8 ℃, after 5～10 days, reduce to low temperature again, and the method is similar to slow cooling, also is to alleviate brown stain through alleviating thermal stimulus, and the cooling of this method is slow, and complex operation influences the quality of pears.Forefathers use too high CO in test
2Exudative type PE preservative film, common PE preservative film, modified form PVC fresh-preserving film, functional low-density polyethylene film, polyvinyl chloride preservative film carry out controlled atmosphere to be handled; Controlled atmosphere is handled the brown stain that has alleviated yellow hat worn by a Taoist priest the operatic circle skin to a certain extent; But the controlled atmosphere method is had relatively high expectations to packaging material, packing method, so effect is limited.Calcium ability delayed fruit is old and feeble, reduces physiological disease, suppresses the inner brown stain of fruit.One Chinese patent application CN200910227838.3 has reported that soaking the calcium processing can alleviate the brown stain of yellow hat worn by a Taoist priest the operatic circle skin; Apple after the harvesting discovered, pears are arranged with stifling 18～24 hours of 500～1000 nLL-1 1-MCP, and then with 3～6% CaCl2 aqueous solution soaking 3～5 minutes, pull drying out after; By conventional method refrigeration; This composite methods has kept good storage quality, but prevents that the pericarp browning effect is limited, and the operation hell to pay.One Chinese patent application CN 102132724 discloses the stifling pericarp browning that suppresses the yellow hat worn by a Taoist priest pears of employing ethylene gas, and effect is obvious, but this processing need carried out service condition requirement height relatively under the air-proof condition.One Chinese patent application CN 101990935 discloses the yellow hat worn by a Taoist priest pears and has adopted the first application of vacuum in back, and then cooling method suppresses the pericarp browning of yellow hat worn by a Taoist priest pears under the condition of normal pressure, and patented method uses needs vaccum-pumping equipment, complicated operation, cost height.One Chinese patent application CN 102077863 discloses use 0.5-10% sodium chloride solution and has carried out immersion treatment yellow hat worn by a Taoist priest pears 0.5-5h, can obviously suppress the brown stain of yellow hat worn by a Taoist priest the operatic circle skin, and there be trouble, the residual problem of salt marsh used in this method.
Summary of the invention
The invention provides a kind of simple to operate and can effectively keep the new method of the inhibition yellow hat worn by a Taoist priest the operatic circle skin brown stain of the good storage quality of yellow hat worn by a Taoist priest pears.
The present invention realizes through following technical scheme:
A kind of method that suppresses the brown stain of yellow hat worn by a Taoist priest the operatic circle skin is characterized in that: use glutathione to handle the yellow hat worn by a Taoist priest pears, then the yellow hat worn by a Taoist priest pears are packed, reduce to cryopreservation, circulation or sale again.
The glutathione aqueous solution that said glutathione of the present invention is 0.05 ~ 5g/L.Glutathione is food-grade or pharmaceutical grade.The present invention does not have special demands to described water, and preferred, water is drinkable water, comprises mineralized water, pure water, purifies waste water.
Preferably, said processing yellow hat worn by a Taoist priest pears are to carry out immersion treatment after gathering.
Preferably, said processing yellow hat worn by a Taoist priest pears are to spray processing after gathering.
Preferably, said processing yellow hat worn by a Taoist priest pears do, spray processing in preceding 10 days gathering.
Described use glutathione aqueous solution soaking is handled the yellow hat worn by a Taoist priest pears, and the processing time is 0.1 ~ 10 minute.
After using the glutathione aqueous solution to handle the yellow hat worn by a Taoist priest pears, 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 materials such as polyethylene, polyvinyl chloride, does not have specific (special) requirements.Freshness protection package folding mouth during packing, packing case seals.
Glutathione of the present invention can be for being processed in the glutathione on the tin foil.Glutathione is food-grade or pharmaceutical grade.Glutathione content on tin foil is 1 ~ 200mg/m
2This tin foil can adopt the routine techniques of existing coating, coating, sprinkling etc. that glutathione etc. is processed on the tin foil, processes the glutathione tin foil.
Described processing yellow hat worn by a Taoist priest pears are handled the yellow hat worn by a Taoist priest pears for using the tin foil that contains glutathione, and promptly the direct or indirect contact yellow hat worn by a Taoist priest pears of the glutathione on the tin foil play preservation.Preferably, use glutathione tin foil single fruit packing to handle the yellow hat worn by a Taoist priest pears.
After using glutathione tin foil single fruit packing to handle the yellow hat worn by a Taoist priest pears, pack again, behind the single fruit overcoat net, put into packing case, and pears are separated with partition.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 materials such as polyethylene, polyvinyl chloride, does not have specific (special) requirements, freshness protection package folding mouthful during packing, and packing case seals.
Preferably, glutathione and vitamin C and usefulness.Glutathione and vitamin C and usefulness can improve effect of the present invention.Vitamin C can keep that glutathione is in reducing condition and the activity that keeps glutathione; Vitamin C can also make oxidized form of glutathione change reduced glutathione (GSH) into.Glutathione and ascorbic ratio be restriction not, and preferred, ascorbic consumption is 0.1 ~ 101% of a glutathione quality.
Described low temperature is-2 ~ 2 ℃.
Described cryopreservation, transportation and sale, preferably packing back fast cooling is preserved, is transported and sell to-2 ~ 2 ℃.
In the said method, used yellow hat worn by a Taoist priest pears are no pericarp foxiness, do not have the machinery wound, do not have fresh the operatic circle rotten, no wilting dehydration.
The present invention suppresses the beneficial effect of the method for yellow hat worn by a Taoist priest the operatic circle skin brown stain: the one, suppress the effective of yellow hat worn by a Taoist priest the operatic circle skin brown stain, 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 superior to the slowly control group of cooling; The 3rd, the used glutathione of this method is food-grade or pharmaceutical grade, and is safe.
(1) 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
-2Said 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 yellow hat worn by a Taoist priest pears pluck after, select size evenly, no pericarp foxiness does not have machinery wound, no disease and pest, the lopsided the operatic circle of nothing;
(2) brown stain suppresses to handle: use the glutathione aqueous solution soaking of 0.05g/L to handle the yellow hat worn by a Taoist priest pears 10 minutes, take out pears then, dry.
(3) packing: after pears dry, wrap 1 layer of common tin foil single fruit cover net, then the yellow hat worn by a Taoist priest pears are packed in the carton of liner PE freshness protection package, and with partition pears are separated, fold the freshness protection package sack, carton seals.
(4) storage: rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (do not handle with the glutathione aqueous solution, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) reaches 80%, and contrast 2 (is not handled with the glutathione aqueous solution; Packing is with above-mentioned processing, and going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 2:
Pear fruit is put into the glutathione aqueous solution of 0.05g/L, soaked 0.1 minute, take out then and wipe moisture with gauze and dry.Other operations are with embodiment 1.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (handle without the glutathione aqueous solution, directly be cooled to-2 ~ 0 ℃) reaches 80%; (handle without the glutathione aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃ in contrast 2; And preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 3:
Pear fruit put into contain 0.05g/L glutathione and 0.05g/L vitamin C water solution simultaneously, soaked 0.1 minute, take out then and wipe moisture with gauze and dry.Other operations are with embodiment 1.
Preserve after 8 months, the not brown stain of yellow hat worn by a Taoist priest the operatic circle skin of using the glutathione and the vitamin C aqueous solution to handle according to the method described above, carpopodium is fresh, and the fruit brittleness is big, does not have to rot quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (do not do above-mentioned processing, directly be cooled to-2 ~ 0 ℃) reaches 80%; The pericarp browning rate of contrast 2 (do not do above-mentioned processing, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃, and preserves in this temperature) is 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged, and brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 4:
Pear fruit is put into the glutathione aqueous solution of 5g/L, soaked 0.1 minute, then taking-up, drop water purification branch, dry.Other operations are with embodiment 1.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is new, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (handle without the glutathione aqueous solution, directly be cooled to-2 ~ 0 ℃) reaches 80%; (handle without the glutathione aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃ in contrast 2; And preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 5:
Pear fruit put into contains the 5g/L glutathione and the 0.005g/L vitamin C aqueous solution simultaneously, soaked 0.1 minute, then taking-up, drop water purification branch, dry.Other operations are with embodiment 1.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione and the vitamin C aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (handle without the glutathione and the vitamin C aqueous solution, directly be cooled to-2 ~ 0 ℃) reaches 80%; (handle without the glutathione and the vitamin C aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃ in contrast 2; And preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 6:
Pear fruit is put into the glutathione aqueous solution of 5g/L, soaked 10 minutes, take out then with, dry.Other operations are with embodiment 1.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to-2 ~ 0 ℃) reaches 80%; (handle without the glutathione aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃ in contrast 2; And preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 7:
Pear fruit is put into the glutathione aqueous solution of 1.0g/L, soaked 5 minutes, take out then and wipe moisture with gauze and dry.Other operations are with embodiment 1.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to-2 ~ 0 ℃) reaches 80%; (handle without the glutathione aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃ in contrast 2; And preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 8:
The yellow hat worn by a Taoist priest pear fruit is put into the glutathione aqueous solution of 3g/L, soaked 3 minutes, take out then, dry.Other operations are with embodiment 1.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to-2 ~ 0 ℃) reaches 80%; (handle without the glutathione aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-2 ~ 0 ℃ in contrast 2; And preserve in this temperature) the pericarp browning rate be 4%, but the operatic circle perfume (or spice) is very light, and the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 9:
(1) pre-treatment: with embodiment 1
(2) brown stain suppresses to handle: use the glutathione aqueous solution soaking of 0.05g/L to handle the yellow hat worn by a Taoist priest pears 10 minutes, take out pears, do with wind then.
(3) packing: after pears dried up, single fruit jacket net was packed the yellow hat worn by a Taoist priest pears in the carton of liner PE freshness protection package into then, and with partition pears is separated, folding freshness protection package sack, and carton seals.
(4) storage: rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into 0 ~ 2.0 ℃ of freezer, after the cooling and in this temperature storage.
Preserve after 6 months, the not brown stain of yellow hat worn by a Taoist priest the operatic circle skin of using the glutathione aqueous solution to handle according to the method described above, fruit face mass color is good, and the fruit brittleness is big, and carpopodium is fresh, quality better; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to 0 ~ 2.0 ℃) reaches 80%, and contrast 2 (is handled without the glutathione aqueous solution; Going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to 0 ~ 2.0 ℃; And preserve 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, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 10:
The yellow hat worn by a Taoist priest pear fruit is put into the glutathione aqueous solution of 5g/L, soaked 5 minutes, take out then with wind and do.Other operations are with embodiment 9.
Preserve after 6 months, the not brown stain of yellow hat worn by a Taoist priest the operatic circle skin of using the glutathione aqueous solution to handle according to the method described above, fruit face mass color is good, and the fruit brittleness is big, and carpopodium is fresh, quality better; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to 0 ~ 2.0 ℃) reaches 80%, and contrast 2 (is handled without the glutathione aqueous solution; Going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to 0 ~ 2.0 ℃; And preserve 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, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 11:
The yellow hat worn by a Taoist priest pear fruit is put into the glutathione aqueous solution of 0.2g/L, soaked 8 minutes, take out then with wind and do.Other operations are with embodiment 7.
Preserve after 6 months, the not brown stain of yellow hat worn by a Taoist priest the operatic circle skin of using the glutathione aqueous solution to handle according to the method described above, fruit face mass color is good, and the fruit brittleness is big, and carpopodium is fresh, quality better; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to 0 ~ 2.0 ℃) reaches 80%, and contrast 2 (is handled without the glutathione aqueous solution; Going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to 0 ~ 2.0 ℃; And preserve 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, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 12:
The yellow hat worn by a Taoist priest pear fruit is put into the glutathione aqueous solution of 0.5g/L, soaked 5 minutes, take out then 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 reduced to 0 ℃ after 5 ~ 8 days, lowers the temperature and remains on-1.0 ~ 0 ℃ of storages, transportation, sells.
Through one-month period, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione aqueous solution to handle does not according to the method described above have brown stain; And the yellow hat worn by a Taoist priest the operatic circle skin browning rate that contrasts 1 (handle without the glutathione aqueous solution, directly be cooled to-1.0 ~ 0 ℃) reaches 80%; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 2 (handle without the glutathione aqueous solution, going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is cooled to-1.0 ~ 0 ℃, and preserves, transports and sell in this temperature) is 5%.
Embodiment 13:
(1) adopts pre-treatment
The yellow hat worn by a Taoist priest pears were being gathered preceding 10 days, fruit quality near or reach low-maturity (dyeing fruit rate 70% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Said 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), use the glutathione aqueous solution sprinkling fruit of 1.0g/L.
(2) pluck packing
Harvesting after 10 days is selected size evenly, no pericarp foxiness, the operatic circle of nothing machinery wound, no disease and pest, nothing deformity; 2 layers of common tin foil of pear fruit bag, the cover net is packed the yellow hat worn by a Taoist priest pears in the carton of liner PE freshness protection package into then; And with partition pears are separated, folding freshness protection package sack, carton seals.
(3) storage
Rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin of handling does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (do not carry out the glutathione sprinkling before adopting and handle, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) reaches 80%, and contrast 2 (is not carried out glutathione and sprayed processing before adopting; Packing is with above-mentioned processing, and going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 14:
(1) adopts pre-treatment
The yellow hat worn by a Taoist priest pears were being gathered preceding 5 days, and fruit quality has reached low-maturity (dyeing fruit rate 70% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Said 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), use the glutathione aqueous solution sprinkling fruit of 5.0g/L.
(2) pluck packing
Harvesting after 5 days is selected size evenly, no pericarp foxiness, the operatic circle of nothing machinery wound, no disease and pest, nothing deformity; 2 layers of common tin foil of pear fruit bag, the cover net is packed the yellow hat worn by a Taoist priest pears in the carton of liner PE freshness protection package into then; And with partition pears are separated, folding freshness protection package sack, carton seals.
(3) storage
Rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin of handling does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (do not carry out the glutathione sprinkling before adopting and handle, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) reaches 80%, and contrast 2 (is not carried out glutathione and sprayed processing before adopting; Packing is with above-mentioned processing, and going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 15:
(1) adopts pre-treatment
The yellow hat worn by a Taoist priest pears were gathered the same day, and fruit quality has reached low-maturity (dyeing fruit rate 81% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Said 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), use the glutathione of 0.1g/L and the vitamin C aqueous solution sprinkling fruit of 0.1g/L.
(2) pluck packing
Spray and handled back 2 hours, fruit surface moisture dries, and plucks; Select size evenly, no pericarp foxiness, the operatic circle of nothing machinery wound, no disease and pest, nothing deformity; 2 layers of common tin foil of pear fruit bag, the cover net is packed the yellow hat worn by a Taoist priest pears in the carton of liner PE freshness protection package into then; And with partition pears are separated, folding freshness protection package sack, carton seals.
(3) storage
Rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin of handling does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (do not carry out the glutathione sprinkling before adopting and handle, packing directly is cooled to-2 ~ 0 ℃ with above-mentioned processing) reaches 80%, and contrast 2 (is not carried out glutathione and sprayed processing before adopting; Packing is with above-mentioned processing, and going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 16:
(1) pre-treatment: low-maturity (dyeing fruit rate 81% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Said 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 yellow hat worn by a Taoist priest pears pluck after, select size evenly, no pericarp foxiness does not have machinery wound, no disease and pest, the lopsided the operatic circle of nothing;
(2) glutathione tin foil preparation: the conventional coating process that passes through that the certain density glutathione aqueous solution is quantitative is coated on the common tin foil; Dry then; Process every square metre and contain 1mg glutathione tin foil, then it is cut into the tin foil that specification is 25*25cm.
(3) handle the yellow hat worn by a Taoist priest pears: use above-mentioned glutathione tin foil single fruit packing to handle the yellow hat worn by a Taoist priest pears, the one side that during packing tin foil is coated with glutathione is towards fruit.
(4) packing: will be surrounded by the yellow hat worn by a Taoist priest pears of glutathione tin foil, overcoat net again in the carton of the liner PE freshness protection package of packing into, and separates pears with partition, folding freshness protection package sack, and carton seals.
(5) storage: rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione tin foil to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (use the common tin foil of individual layer (not containing glutathione) single fruit packing, directly be cooled to-2 ~ 0 ℃) reaches 80%, and contrast 2 (is used the common tin foil of individual layer (not containing glutathione) single fruit packing; Going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged; Brittleness is little, and rotting rate is 10%, and carpopodium is withered serious.
Embodiment 17:
(1) pre-treatment: low-maturity (dyeing fruit rate 81% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Said 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 yellow hat worn by a Taoist priest pears pluck after, select size evenly, no pericarp foxiness does not have machinery wound, no disease and pest, the lopsided the operatic circle of nothing;
(2) glutathione tin foil preparation: certain density glutathione and the quantitative routine spraying of passing through of the vitamin C aqueous solution are coated in it on common tin foil; Dry then; Process every square metre and contain 50mg glutathione and the ascorbic tin foil of 50mg, then it is cut into the tin foil that specification is 25*25cm.
(3) handle the yellow hat worn by a Taoist priest pears: use above-mentioned tin foil single fruit packing to handle the yellow hat worn by a Taoist priest pears, during packing tin foil is had glutathione and ascorbic one side towards fruit.
(4) packing: the yellow hat worn by a Taoist priest pears with above-mentioned packing is handled, overlap net again, in the carton of the liner PE freshness protection package of packing into, and pears are separated with partition, folding freshness protection package sack, carton seals.
(5) storage: rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione tin foil to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (use the common tin foil of individual layer (not containing glutathione and vitamin C) single fruit packing, directly be cooled to-2 ~ 0 ℃) reaches 80%, and contrast 2 (is used the common tin foil of individual layer (not containing glutathione and vitamin C) single fruit packing; Going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged, and brittleness is little; Rotting rate is 10%, and carpopodium is withered serious.
Embodiment 18:
(1) pre-treatment: low-maturity (dyeing fruit rate 81% ~ 100%, hardness 5.0 ~ 6.0Kgcm
-2Said 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 yellow hat worn by a Taoist priest pears pluck after, select size evenly, no pericarp foxiness does not have machinery wound, no disease and pest, the lopsided the operatic circle of nothing;
(2) glutathione tin foil preparation: certain density glutathione and the quantitative conventional spray technique that passes through of the vitamin C aqueous solution are coated in it on common tin foil; Dry then; Process every square metre and contain 200mg glutathione and the ascorbic tin foil of 0.2mg, then it is cut into the tin foil that specification is 25*25cm.
(3) handle the yellow hat worn by a Taoist priest pears: use above-mentioned tin foil single fruit packing yellow hat worn by a Taoist priest pears, will apply glutathione and ascorbic one side during packing towards fruit.
(4) packing: will be surrounded by the yellow hat worn by a Taoist priest pears of glutathione and vitamin C tin foil, the overcoat net in the carton of the liner PE freshness protection package of packing into, and separates pears with partition, folds the freshness protection package sack, and carton seals.
(5) storage: rapidly yellow hat worn by a Taoist priest pears having boxing are directly put into-2 ~ 0 ℃ of freezers, after the cooling and in this temperature storage.
Preserve after 8 months, the yellow hat worn by a Taoist priest the operatic circle skin that uses the glutathione tin foil to handle does not according to the method described above have brown stain, and carpopodium is fresh, and the fruit brittleness is big, does not have and rots quality better; The yellow hat worn by a Taoist priest the operatic circle skin browning rate of contrast 1 (use the common tin foil of individual layer (not containing glutathione and vitamin C) single fruit packing, directly be cooled to-2 ~ 0 ℃) reaches 80%, and contrast 2 (is used the common tin foil of individual layer (not containing glutathione and vitamin C) single fruit packing; Going into the Kuku temperature is 9 ℃, and the warehouse-in back lowers the temperature 1 ℃ every day, is 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 the alcohol flavor is arranged, and brittleness is little; Rotting rate is 10%, and carpopodium is withered serious.
Claims (14)
1. a method that suppresses the brown stain of yellow hat worn by a Taoist priest the operatic circle skin is characterized in that: use glutathione to handle the yellow hat worn by a Taoist priest pears, then the yellow hat worn by a Taoist priest pears are packed, reduce to cryopreservation, circulation or sale again.
2. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 1 brown stain, it is characterized in that: said glutathione is the glutathione aqueous solution of 0.05 ~ 5g/L.
3. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 1 and 2 brown stain, it is characterized in that: said processing yellow hat worn by a Taoist priest pears are to carry out immersion treatment after gathering.
4. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 1 and 2 brown stain, it is characterized in that: said processing yellow hat worn by a Taoist priest pears are to spray processing after gathering.
5. the method for inhibition according to claim 1 and 2 yellow hat worn by a Taoist priest the operatic circle skin brown stain is characterized in that: said processing yellow hat worn by a Taoist priest pears do, spray processing in preceding 10 days gathering.
6. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 3 brown stain, it is characterized in that: described use glutathione solution is handled the yellow hat worn by a Taoist priest pears, and the processing time is 0.1 ~ 10 minute.
7. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 1 brown stain, it is characterized in that: said glutathione is the glutathione that is processed on the tin foil.
8. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 7 brown stain, it is characterized in that: glutathione content on tin foil is 1 ~ 200mg/m
2
9. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 7 brown stain is characterized in that: said processing yellow hat worn by a Taoist priest pears are for using the tin foil packing yellow hat worn by a Taoist priest pears that contain glutathione.
10. according to the method for claim 1 or 3 or 4 or 7 each described inhibition yellow hat worn by a Taoist priest the operatic circle skin brown stains, it is characterized in that: described low temperature is-2 ~ 2 ℃.
11. according to the method for claim 1 or 3 or 4 or 7 each described inhibition yellow hat worn by a Taoist priest the operatic circle skin brown stains, it is characterized in that: glutathione and vitamin C are also used.
12. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 7 brown stain is characterized in that ascorbic consumption is 0.1 ~ 101% of a glutathione quality.
13. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 1 brown stain is characterized in that said packing, is with putting into packing case again behind 1 ~ 2 layer of tin foil of pears single fruit bag and the net, perhaps putting into packing case again behind the single fruit cover net.
14. the method for inhibition yellow hat worn by a Taoist priest the operatic circle skin according to claim 13 brown stain is characterized in that described packing case is the packing case of liner freshness protection package.
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| CN103625770A (en) * | 2013-12-11 | 2014-03-12 | 河北省农林科学院遗传生理研究所 | Preparation of preservative paper for apples and pears and using method of preservative paper |
| CN105394169A (en) * | 2015-11-08 | 2016-03-16 | 常州大学 | Compound fruit and vegetable juice/fruit and vegetable slice browning inhibitor and preparation method thereof |
| CN106579135A (en) * | 2017-01-05 | 2017-04-26 | 虞雪仑 | Processing method for instant toona sinensis dish |
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| CN106616626A (en) * | 2017-01-05 | 2017-05-10 | 阮诚德 | Processing method of soy sauce flavor type radish strips |
| CN106616625A (en) * | 2017-01-05 | 2017-05-10 | 虞瑞麒 | Processing method of soft-package seasoned asparagus |
| CN106666538A (en) * | 2017-01-05 | 2017-05-17 | 徐文轩 | Preparation method of dried day lilies |
| CN106666537A (en) * | 2017-01-05 | 2017-05-17 | 李铖浩 | Processing method of cerasus-pseudocerasus fruit tin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103625770A (en) * | 2013-12-11 | 2014-03-12 | 河北省农林科学院遗传生理研究所 | Preparation of preservative paper for apples and pears and using method of preservative paper |
| CN105394169A (en) * | 2015-11-08 | 2016-03-16 | 常州大学 | Compound fruit and vegetable juice/fruit and vegetable slice browning inhibitor and preparation method thereof |
| CN106615054A (en) * | 2016-12-16 | 2017-05-10 | 河北省农林科学院石家庄果树研究所 | Storage and fresh-keeping comprehensive treatment method for Huangguan pears |
| CN106615054B (en) * | 2016-12-16 | 2020-07-31 | 河北省农林科学院石家庄果树研究所 | Comprehensive storage and preservation treatment method for Huangguan pears |
| CN106579135A (en) * | 2017-01-05 | 2017-04-26 | 虞雪仑 | Processing method for instant toona sinensis dish |
| CN106616626A (en) * | 2017-01-05 | 2017-05-10 | 阮诚德 | Processing method of soy sauce flavor type radish strips |
| CN106616625A (en) * | 2017-01-05 | 2017-05-10 | 虞瑞麒 | Processing method of soft-package seasoned asparagus |
| CN106666538A (en) * | 2017-01-05 | 2017-05-17 | 徐文轩 | Preparation method of dried day lilies |
| CN106666537A (en) * | 2017-01-05 | 2017-05-17 | 李铖浩 | Processing method of cerasus-pseudocerasus fruit tin |
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