CN112293481A - Processing method of fresh winter bamboo shoots - Google Patents
Processing method of fresh winter bamboo shoots Download PDFInfo
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- CN112293481A CN112293481A CN202011147358.9A CN202011147358A CN112293481A CN 112293481 A CN112293481 A CN 112293481A CN 202011147358 A CN202011147358 A CN 202011147358A CN 112293481 A CN112293481 A CN 112293481A
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- bamboo shoots
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- winter
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 132
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 132
- 241001330002 Bambuseae Species 0.000 title claims abstract description 132
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 132
- 239000011425 bamboo Substances 0.000 title claims abstract description 132
- 238000003672 processing method Methods 0.000 title description 2
- 230000002335 preservative effect Effects 0.000 claims abstract description 51
- 239000003755 preservative agent Substances 0.000 claims abstract description 50
- 239000004576 sand Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 28
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- JLIDBLDQVAYHNE-YKALOCIXSA-N (+)-Abscisic acid Chemical compound OC(=O)/C=C(/C)\C=C\[C@@]1(O)C(C)=CC(=O)CC1(C)C JLIDBLDQVAYHNE-YKALOCIXSA-N 0.000 claims abstract description 24
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 24
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 18
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 claims abstract description 16
- 244000247812 Amorphophallus rivieri Species 0.000 claims abstract description 16
- 235000001206 Amorphophallus rivieri Nutrition 0.000 claims abstract description 16
- 229920002581 Glucomannan Polymers 0.000 claims abstract description 16
- 229920002752 Konjac Polymers 0.000 claims abstract description 16
- 229940046240 glucomannan Drugs 0.000 claims abstract description 16
- 239000000252 konjac Substances 0.000 claims abstract description 16
- 235000010485 konjac Nutrition 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 15
- FCRACOPGPMPSHN-UHFFFAOYSA-N desoxyabscisic acid Natural products OC(=O)C=C(C)C=CC1C(C)=CC(=O)CC1(C)C FCRACOPGPMPSHN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 12
- 238000004320 controlled atmosphere Methods 0.000 claims abstract description 10
- 239000011668 ascorbic acid Substances 0.000 claims abstract description 9
- 235000010323 ascorbic acid Nutrition 0.000 claims abstract description 9
- 229960005070 ascorbic acid Drugs 0.000 claims abstract description 9
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000018417 cysteine Nutrition 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 56
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 235000013372 meat Nutrition 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 7
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 7
- 239000004343 Calcium peroxide Substances 0.000 claims description 6
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 claims description 6
- 235000019402 calcium peroxide Nutrition 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 6
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 244000269722 Thea sinensis Species 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims description 4
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 4
- 235000013824 polyphenols Nutrition 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 6
- 208000031888 Mycoses Diseases 0.000 abstract description 3
- 230000001580 bacterial effect Effects 0.000 abstract description 3
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 229960002433 cysteine Drugs 0.000 abstract description 2
- 230000002829 reductive effect Effects 0.000 abstract description 2
- 229940001482 sodium sulfite Drugs 0.000 abstract description 2
- 208000035143 Bacterial infection Diseases 0.000 abstract 1
- 206010017533 Fungal infection Diseases 0.000 abstract 1
- 208000022362 bacterial infectious disease Diseases 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 24
- 230000000694 effects Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 244000005700 microbiome Species 0.000 description 5
- 208000015181 infectious disease Diseases 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 206010016654 Fibrosis Diseases 0.000 description 3
- 230000004761 fibrosis Effects 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 235000015874 Sinocalamus latiflorus Nutrition 0.000 description 1
- 244000092524 Sinocalamus latiflorus Species 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 235000006286 nutrient intake Nutrition 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/152—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/157—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Abstract
The invention discloses a method for processing fresh winter bamboo shoots, which comprises the following steps: digging bamboo shoots: digging healthy winter bamboo shoots from bamboo forests; and (3) transportation: placing the winter bamboo shoots obtained in the step of digging the bamboo shoots in a transfer box, and transporting the transfer box to a processing storehouse; processing: processing the winter bamboo shoots transported to a processing storehouse; according to the control method, damage, pollution, aging and the like of winter bamboo shoots when the winter bamboo shoots are transported to a storehouse from a bamboo forest are reduced as much as possible, clean river sand is mixed with the liquid preservative, then the controlled atmosphere preservative is placed at a position corresponding to the roots of the bamboo shoots, and lignification of the bamboo shoots is realized by jointly matching substances such as konjac glucomannan, sodium sulfite, ascorbic acid, cysteine, abscisic acid and the like in the liquid preservative, inhibiting bacterial and fungal infection from the outside to inhibiting continuous growth from the inside.
Description
Technical Field
The application relates to the field of bamboo shoot processing, in particular to a method for processing fresh winter bamboo shoots.
Background
The winter bamboo shoots are bamboo shoot buds formed by lateral buds of underground stems (bamboo rhizomes) of moso bamboos before and after winter, and the winter bamboo shoots are young and tender due to the fact that the winter bamboo shoots do not grow out of soil, are a food material very popular among people in the west of the river, the harvesting time of the winter bamboo shoots is generally from frost to the next spring, namely from ten days of 10 months to 2 months of the next year, although the temperature is lower at the moment, the collected winter bamboo shoots are still aged quickly and are not fresh enough, the sale radius is small, and the production yield is greatly reduced.
After the winter bamboo shoots are collected, the inventor finds that the winter bamboo shoots always have the conditions of sprouting and root growing when being transported to a storehouse by a common sand storage method, the obtained winter bamboo shoots have general quality, the winter bamboo shoots can be mechanically damaged in the picking process, and the winter bamboo shoots are possibly polluted by microorganisms in the transportation process to cause the winter bamboo shoots to rot and necrosis.
The application discloses a coating preservation method of fresh dendrocalamus latiflorus and a matched bamboo shoot preservative thereof, which are applied by the university of southwest and application of the bamboo shoot preservative CN201110414487.4, wherein the preservative is obtained by compounding chitosan coating liquid with chitosan, glacial acetic acid and a water medium, the bamboo shoots are soaked in the preservative to achieve the preservation effect, and the preservative needs to be used for killing out the green and then soaking the bamboo shoots to achieve the preservation effect and is not suitable for preservation of the collected winter bamboo shoots in the period of time before processing.
Disclosure of Invention
In view of the problems in the prior art, the present invention aims to provide a method for processing fresh winter bamboo shoots, which is used for solving at least one of the above technical problems.
In a first aspect, the invention provides a method for processing fresh winter bamboo shoots, which comprises the following steps: digging bamboo shoots: digging healthy winter bamboo shoots from bamboo forests; and (3) transportation: placing the winter bamboo shoots obtained in the step of digging the bamboo shoots in a transfer box, and transporting the transfer box to a processing storehouse; processing: the winter bamboo shoots transported to a processing storehouse are processed, and the transportation process comprises the following steps: 1) taking fine river sand, cleaning and drying to obtain dried fine river sand; 2) adding a liquid preservative into the dried fine river sand obtained in the step 1), and adding 5-10ml of the liquid preservative into every 100g of the dried fine river sand to obtain fresh-keeping river sand; 3) uniformly stirring the fresh river sand obtained in the step 2), paving the fresh river sand in a transfer box with the paving thickness of 10-15cm, and placing the controlled atmosphere preservative on the surface of the fresh river sand paved in the transfer box every 1cm2Placing 0.3-0.5mg of controlled atmosphere preservative on the surface of the fresh-keeping river sand, placing the bamboo shoot tips obtained in the step of digging the bamboo shoots into a transfer box, immersing the bamboo shoot roots into the laid fresh-keeping river sand, then adding the fresh-keeping river sand into the transfer box until the bamboo shoot tips are covered, and tamping the fresh-keeping river sand.
In a second aspect, the present invention provides a method, wherein the liquid preservative comprises the following substances by mass: 0.1-0.5% of konjac glucomannan, 0.2-0.4% of sodium sulfite, 0.3-0.6% of ascorbic acid, 0.1-0.3% of cysteine, 0.1-0.3% of abscisic acid, 0.2-1% of sodium carboxymethylcellulose and the balance of water.
Preferably, the liquid preservative comprises the following substances in percentage by mass: 0.2 to 0.4 percent of konjac glucomannan, 0.25 to 0.3 percent of sodium sulfite, 0.4 to 0.5 percent of ascorbic acid, 0.15 to 0.25 percent of cysteine, 0.2 percent of abscisic acid, 0.6 to 1 percent of sodium carboxymethylcellulose and the balance of water.
Preferably, the liquid preservative comprises the following substances in percentage by mass: 0.4% of konjac glucomannan, 0.3% of sodium sulfite, 0.4% of ascorbic acid, 0.2% of cysteine, 1% of sodium carboxymethyl cellulose, 0.2% of abscisic acid and 97.5% of water.
Preferably, the modified atmosphere preservative comprises the following substances: ferric sulfate, calcium peroxide and a carrier, wherein the mass ratio of the ferric sulfate to the calcium peroxide to the carrier is 1: 1: 1.8.
preferably, after digging the bamboo shoot, the method further comprises:
and (4) classification: classifying the winter bamboo shoots obtained in the step of digging the bamboo shoots according to sizes;
and (3) transportation: and placing the classified winter bamboo shoots of the same type in the same transfer box.
Preferably, the processing comprises:
cleaning: taking out the winter bamboo shoots in the transfer box, placing the winter bamboo shoots in clear water for soaking for 10min, and then washing the winter bamboo shoots to obtain clean winter bamboo shoots;
removing roots and shells: peeling the cleaned bamboo shoots, removing roots and shells to obtain bamboo shoot meat;
de-enzyming: putting the bamboo shoot meat into a de-enzyming chamber, and de-enzyming through steam spraying for 60-70 min;
coating: placing the de-enzymed bamboo shoot meat to normal temperature, and then soaking in a coating preservative for 30-50 min;
packaging: drying the bamboo shoot meat after coating, and then putting into a packaging bag for sealing.
Preferably, the coating preservative comprises the following substances in percentage by mass: 0.02-0.05% of calcium hydroxide, 0.03-0.06% of calcium carbonate powder, 0.02-0.05% of nano silicon dioxide, 0.05-0.09% of tea polyphenol, 0.03-0.07% of dipotassium hydrogen phosphate, 0.01-0.05% of boric acid and 0.1-0.3% of konjac glucomannan.
Preferably, the coating preservative comprises the following substances in percentage by mass: 0.04% of calcium hydroxide, 0.05% of calcium carbonate powder, 0.05% of nano silicon dioxide, 0.06% of tea polyphenol, 0.05% of dipotassium hydrogen phosphate, 0.05% of boric acid, 0.3% of konjac glucomannan and 99.4% of water.
Has the advantages that:
the method comprises the steps of placing the just dug winter bamboo shoots into a transfer box to reduce damage, pollution, aging and the like of the winter bamboo shoots when the winter bamboo shoots are transported to a storehouse from a bamboo forest as far as possible, mixing clean river sand with a liquid preservative, placing the controlled atmosphere preservative at the positions corresponding to the roots of the bamboo shoots, inhibiting bacterial fungus infection from the outside to inhibiting continuous growth of the bamboo shoots from the inside by jointly matching substances such as konjac glucomannan, sodium sulfite, ascorbic acid, cysteine, abscisic acid and the like in the liquid preservative, realizing lignification of the bamboo shoots, keeping the bamboo shoots fresh during transportation, placing the controlled atmosphere preservative at the roots of the bamboo shoots, controlling respiration of the winter bamboo shoots by utilizing sulfur dioxide and carbon dioxide released by the controlled atmosphere preservative, reducing nutrient consumption, and realizing browning inhibition by matching the effects of inhibiting bacterial fungus infection from the outside to inhibiting continuous growth of the bamboo shoots from the inside.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below by combining the embodiments of the present invention with comparative examples, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present application is further illustrated by the following examples
The components of the liquid antistaling agents in the examples 1-6 according to the mass percentage are shown in the following table 1
TABLE 1
The method for processing fresh winter bamboo shoots in embodiments 1 to 6 comprises the following steps:
digging bamboo shoots: digging healthy winter bamboo shoots from bamboo forests;
and (3) transportation: placing the winter bamboo shoots obtained in the step of digging the bamboo shoots in a transfer box, and transporting the transfer box to a processing storehouse;
processing: processing the winter bamboo shoots transported to a processing storehouse;
the transportation comprises the following steps:
1) taking fine river sand, cleaning and drying to obtain dried fine river sand;
2) adding a liquid preservative into the dried fine river sand obtained in the step 1), and adding 10ml of the liquid preservative into every 100g of the dried fine river sand to obtain fresh-keeping river sand;
3) uniformly stirring the fresh river sand obtained in the step 2), paving the fresh river sand in a transfer box with the paving thickness of 10-15cm, and placing the controlled atmosphere preservative on the surface of the fresh river sand paved in the transfer box every 1cm2And (3) placing 0.5mg of controlled atmosphere preservative on the surface of the fresh-keeping river sand, placing the bamboo shoot tips obtained in the step of digging the bamboo shoots into a transfer box, immersing the bamboo shoot roots into the laid fresh-keeping river sand, then adding the fresh-keeping river sand into the transfer box until the bamboo shoot tips are covered, and patting the fresh-keeping river sand to be solid.
The modified atmosphere preservative comprises the following substances: ferric sulfate, calcium peroxide and a carrier, wherein the mass ratio of the ferric sulfate to the calcium peroxide to the carrier is 1: 1: 1.8.
the processing comprises the following steps:
cleaning: taking out the winter bamboo shoots in the transfer box, placing the winter bamboo shoots in clear water for soaking for 10min, and then washing the winter bamboo shoots to obtain clean winter bamboo shoots;
removing roots and shells: peeling the cleaned bamboo shoots, removing roots and shells to obtain bamboo shoot meat;
de-enzyming: putting the bamboo shoot meat into a de-enzyming chamber, and de-enzyming through steam spraying for 60-70 min;
coating: placing the de-enzymed bamboo shoot meat to normal temperature, and then soaking in a coating preservative for 30-50 min;
packaging: drying the bamboo shoot meat after coating, and then putting into a packaging bag for sealing.
Comparative example 1:
the comparative example 1 is different from the example 1 only in that konjac glucomannan is not added to the liquid preservative, and other preparation conditions are the same as those of the example 1.
Comparative example 2:
comparative example 2 differs from example 1 only in that sodium sulfite is not added to the liquid antistaling agent and other preparation conditions are the same as those of example 1.
Comparative example 3:
comparative example 3 differs from example 1 only in that abscisic acid is not added to the liquid preservative and other preparation conditions are the same as those of example 1.
Comparative example 4:
comparative example 4 is different from example 1 only in that a liquid fresh-keeping agent was added to the dried fine river sand obtained in step 1), and 3ml of the liquid fresh-keeping agent was added to every 100g of the dried fine river sand to obtain fresh-keeping river sand, and other preparation conditions were the same as those in example 1.
Comparative example 5:
comparative example 5 is different from example 1 only in that a liquid fresh-keeping agent was added to the dried fine river sand obtained in step 1), and 15ml of the liquid fresh-keeping agent was added per 100g of the dried fine river sand to obtain fresh-keeping river sand, and other preparation conditions were the same as those in example 1.
Comparative example 6:
comparative example 6 is different from example 1 in that clear water is used instead of the liquid antistaling agent, and other preparation conditions are the same as those of example 1.
Detecting the fibrosis of the winter bamboo shoots:
for the winter bamboo shoots before being processed in examples 1-6 and comparative examples 1-6 (the transportation time is 5h), the winter bamboo shoots with basically consistent sizes are selected to be used as a fibrosis detection experiment, and the experimental results are shown in the following tables 2 and 3:
TABLE 2
TABLE 3
As can be seen from tables 2 and 3, the winter bamboo shoot treatment method provided by the present application can prevent winter bamboo shoot fibrosis as much as possible before processing.
Detecting the color of the winter bamboo shoots:
before processing winter bamboo shoots in examples 1-6 and comparative examples 1-6 (transportation time is 5h), 10 winter bamboo shoots with basically consistent sizes are selected respectively, the colors of the winter bamboo shoots are observed, and the experimental results are shown in the following tables 4 and 5:
TABLE 4
TABLE 5
As can be seen from tables 4 to 5, the treatment method of the present invention well inhibits browning of winter bamboo shoots before winter bamboo shoots are processed, and as can be seen from comparison of comparative example 6 with example 1, a relatively severe browning situation occurs in a long-term transportation process by a common sand storage method, wherein 4 cases exist when a browning area is 20-35%, 3 cases exist when a browning area is 35-50%, 3 cases exist when a browning area is greater than 50%, while only two cases in example 1 have a browning area less than 20%, and no browning exists in the other cases. The comparison of comparative examples 1-3 and example 1 shows that konjac glucomannan, sodium sulfite and abscisic acid in the liquid preservative have combined action, so that the effect of controlling browning of winter bamboo shoots is realized, the comparison of comparative example 4 and comparative example 5 with example 1 shows that the addition amount of the liquid preservative also influences the inhibition effect, the liquid preservative has an obviously better effect than that of the liquid preservative in the range of 5-10ml per 100g of river sand, and the comparison of examples 1-6 with example 6 shows that the browning inhibition effect of example 6 is obviously better than that of other examples, and the comparison of the liquid preservative of the present application with 0.4% of konjac glucomannan, 0.3% of sodium sulfite, 0.4% of ascorbic acid, 0.2% of cysteine, 1% of sodium carboxymethylcellulose, 0.2% of abscisic acid and 97.5% of water is an optimal scheme.
Detecting the quality of winter bamboo shoots:
before the winter bamboo shoots are processed in examples 1-6 and comparative examples 1-6 (the transportation time is 5h), 10 winter bamboo shoots with damage during digging and picking are selected and basically consistent in size, whether the winter bamboo shoots are polluted or not is observed, and the experimental results are shown in the following tables 6 and 7:
TABLE 6
TABLE 7
As can be seen from tables 6 and 7, the treatment method of the invention can effectively control the infection of the winter bamboo shoots by microorganisms before being processed, as can be seen from comparison of examples 1-6 with comparative example 6, the treatment method of the invention is far better than the conventional sand storage method in terms of controlling the infection of the microorganisms, as can be seen from comparison of comparative examples 1-3 with example 1, konjac glucomannan, sodium sulfite and abscisic acid in the liquid preservative in the treatment method of the invention act together, thereby realizing the control of the infection of the winter bamboo shoots by the microorganisms, as can be seen from comparison of comparative example 4 and comparative example 5 with example 1, the addition amount of the liquid preservative also affects the sterilization effect, the liquid preservative effect is obviously better than that of the range when every 100g of river sand is put in the range of 5-10ml, as can be seen from comparison of examples 1-5 with example 6, in terms of controlling the infection by the microorganisms, example 6 is the most preferred example.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for processing fresh winter bamboo shoots is characterized by comprising the following steps:
digging bamboo shoots: digging healthy winter bamboo shoots from bamboo forests;
and (3) transportation: placing the winter bamboo shoots obtained in the step of digging the bamboo shoots in a transfer box, and transporting the transfer box to a processing storehouse;
processing: processing the winter bamboo shoots transported to a processing storehouse;
the transportation comprises the following steps:
1) taking fine river sand, cleaning and drying to obtain dried fine river sand;
2) adding a liquid preservative into the dried fine river sand obtained in the step 1), and adding 5-10ml of the liquid preservative into every 100g of the dried fine river sand to obtain fresh-keeping river sand;
3) uniformly stirring the fresh river sand obtained in the step 2), paving the fresh river sand in a transfer box with the paving thickness of 10-15cm, and placing the controlled atmosphere preservative on the surface of the fresh river sand paved in the transfer box every 1cm2Placing 0.3-0.5mg of controlled atmosphere preservative on the surface of the fresh-keeping river sand, placing the bamboo shoot tips obtained in the step of digging the bamboo shoots into a transfer box, immersing the bamboo shoot roots into the laid fresh-keeping river sand, then adding the fresh-keeping river sand into the transfer box until the bamboo shoot tips are covered, and tamping the fresh-keeping river sand;
the liquid preservative comprises the following substances in percentage by mass: 0.1-0.5% of konjac glucomannan, 0.2-0.4% of sodium sulfite, 0.3-0.6% of ascorbic acid, 0.1-0.3% of cysteine, 0.1-0.3% of abscisic acid, 0.2-1% of sodium carboxymethylcellulose and the balance of water.
2. The treatment method according to claim 1, characterized in that the liquid preservative comprises the following substances in percentage by mass: 0.2 to 0.4 percent of konjac glucomannan, 0.25 to 0.3 percent of sodium sulfite, 0.4 to 0.5 percent of ascorbic acid, 0.15 to 0.25 percent of cysteine, 0.2 percent of abscisic acid, 0.6 to 1 percent of sodium carboxymethylcellulose and the balance of water.
3. The treatment method according to claim 1, characterized in that the liquid preservative comprises the following substances in percentage by mass: 0.4% of konjac glucomannan, 0.3% of sodium sulfite, 0.4% of ascorbic acid, 0.2% of cysteine, 1% of sodium carboxymethyl cellulose, 0.2% of abscisic acid and 97.5% of water.
4. The treatment method according to claim 1, wherein the modified atmosphere preservative comprises the following substances: ferric sulfate, calcium peroxide and a carrier, wherein the mass ratio of the ferric sulfate to the calcium peroxide to the carrier is 1: 1: 1.8.
5. the process of claim 1, wherein after digging a bamboo shoot, the process further comprises:
and (4) classification: classifying the winter bamboo shoots obtained in the step of digging the bamboo shoots according to sizes;
and (3) transportation: and placing the classified winter bamboo shoots of the same type in the same transfer box.
6. The process of claim 1, wherein the processing comprises:
cleaning: taking out the winter bamboo shoots in the transfer box, placing the winter bamboo shoots in clear water for soaking for 10min, and then washing the winter bamboo shoots to obtain clean winter bamboo shoots;
removing roots and shells: peeling the cleaned bamboo shoots, removing roots and shells to obtain bamboo shoot meat;
de-enzyming: putting the bamboo shoot meat into a de-enzyming chamber, and de-enzyming through steam spraying for 60-70 min;
coating: placing the de-enzymed bamboo shoot meat to normal temperature, and then soaking in a coating preservative for 30-50 min;
packaging: drying the bamboo shoot meat after coating, and then putting into a packaging bag for sealing.
7. The treatment method according to claim 6, wherein the coating preservative comprises the following substances in percentage by mass: 0.02-0.05% of calcium hydroxide, 0.03-0.06% of calcium carbonate powder, 0.02-0.05% of nano silicon dioxide, 0.05-0.09% of tea polyphenol, 0.03-0.07% of dipotassium hydrogen phosphate, 0.01-0.05% of boric acid and 0.1-0.3% of konjac glucomannan.
8. The treatment method according to claim 6, wherein the coating preservative comprises the following substances in percentage by mass: 0.04% of calcium hydroxide, 0.05% of calcium carbonate powder, 0.05% of nano silicon dioxide, 0.06% of tea polyphenol, 0.05% of dipotassium hydrogen phosphate, 0.05% of boric acid, 0.3% of konjac glucomannan and 99.4% of water.
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