CN107258891A - A kind of fresh-keeping process technique of pleurotus eryngii - Google Patents
A kind of fresh-keeping process technique of pleurotus eryngii Download PDFInfo
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- CN107258891A CN107258891A CN201710348542.1A CN201710348542A CN107258891A CN 107258891 A CN107258891 A CN 107258891A CN 201710348542 A CN201710348542 A CN 201710348542A CN 107258891 A CN107258891 A CN 107258891A
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- Prior art keywords
- pleurotus eryngii
- antistaling agent
- fresh
- processing
- keeping
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- 244000252132 Pleurotus eryngii Species 0.000 title claims abstract description 57
- 235000001681 Pleurotus eryngii Nutrition 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000008569 process Effects 0.000 title claims abstract description 18
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 238000005138 cryopreservation Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 238000005422 blasting Methods 0.000 claims description 22
- 238000004880 explosion Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000006378 damage Effects 0.000 claims description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- JMGZEFIQIZZSBH-UHFFFAOYSA-N Bioquercetin Natural products CC1OC(OCC(O)C2OC(OC3=C(Oc4cc(O)cc(O)c4C3=O)c5ccc(O)c(O)c5)C(O)C2O)C(O)C(O)C1O JMGZEFIQIZZSBH-UHFFFAOYSA-N 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- IKGXIBQEEMLURG-UHFFFAOYSA-N Rutin Chemical compound OC1C(O)C(O)C(C)OC1OCC1C(O)C(O)C(O)C(OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 IKGXIBQEEMLURG-UHFFFAOYSA-N 0.000 claims description 6
- 239000001110 calcium chloride Substances 0.000 claims description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 6
- IVTMALDHFAHOGL-UHFFFAOYSA-N eriodictyol 7-O-rutinoside Natural products OC1C(O)C(O)C(C)OC1OCC1C(O)C(O)C(O)C(OC=2C=C3C(C(C(O)=C(O3)C=3C=C(O)C(O)=CC=3)=O)=C(O)C=2)O1 IVTMALDHFAHOGL-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- FDRQPMVGJOQVTL-UHFFFAOYSA-N quercetin rutinoside Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 FDRQPMVGJOQVTL-UHFFFAOYSA-N 0.000 claims description 6
- IKGXIBQEEMLURG-BKUODXTLSA-N rutin Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@@H]1OC[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 IKGXIBQEEMLURG-BKUODXTLSA-N 0.000 claims description 6
- ALABRVAAKCSLSC-UHFFFAOYSA-N rutin Natural products CC1OC(OCC2OC(O)C(O)C(O)C2O)C(O)C(O)C1OC3=C(Oc4cc(O)cc(O)c4C3=O)c5ccc(O)c(O)c5 ALABRVAAKCSLSC-UHFFFAOYSA-N 0.000 claims description 6
- 235000005493 rutin Nutrition 0.000 claims description 6
- 229960004555 rutoside Drugs 0.000 claims description 6
- 241000607479 Yersinia pestis Species 0.000 claims description 5
- 201000010099 disease Diseases 0.000 claims description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 20
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 102000004190 Enzymes Human genes 0.000 description 5
- 108090000790 Enzymes Proteins 0.000 description 5
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical compound COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229960001867 guaiacol Drugs 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- COLNVLDHVKWLRT-QMMMGPOBSA-N L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=CC=C1 COLNVLDHVKWLRT-QMMMGPOBSA-N 0.000 description 1
- 102000003992 Peroxidases Human genes 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 208000007107 Stomach Ulcer Diseases 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- KUGSJJNCCNSRMM-UHFFFAOYSA-N ethoxyboronic acid Chemical compound CCOB(O)O KUGSJJNCCNSRMM-UHFFFAOYSA-N 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 201000005917 gastric ulcer Diseases 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 108040007629 peroxidase activity proteins Proteins 0.000 description 1
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 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
- A23B7/144—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
- A23B7/005—Preserving by heating
- A23B7/0053—Preserving by heating by direct or indirect contact with heating gases or liquids
-
- 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 kind of fresh-keeping process technique of pleurotus eryngii, comprise the following steps：（1）Antistaling agent preparation,（2）Pretreatment of raw material,（3）Preservation Treatment,（4）Cryopreservation.Fresh-keeping process technique of the present invention can effectively lift the Preservation Treatment effect to pleurotus eryngii; the antistaling agent of preparation is safe and reliable; the fresh keeping time of pleurotus eryngii is extended well; and this method disposed of in its entirety duration is shorter; the amount of the antistaling agent consumed is greatly decreased; production cost can be reduced by more than 20%, while environment is protected again, with good promotional value.
Description
Technical field
The invention belongs to food processing technology field, and in particular to a kind of fresh-keeping process technique of pleurotus eryngii.
Background technology
Pleurotus eryngii, also known as pleurotus eryngii, its bacterial context are plump, and quality is fresh and tender, nutritious, tasty, and with fine
Health-care effect, often eat pleurotus eryngii, it is possible to decrease reducing blood lipid, cholesterol, promote gastro-intestinal digestion, strengthen body immunity,
To prevention of cardiovascular disease, diabetes, hepatitis and gastric ulcer all have certain effect, very popular.Pleurotus eryngii is after adopting
The phenomenons such as dehydration, softening and brown stain easily occur in storage and transport process, reduces its edible quality and commodity value, greatly constrains
The industry development of pleurotus eryngii.Safely and effectively fresh-keeping measure after pleurotus eryngii is adopted, for extension pleurotus eryngii shelf life, improves it economical
Benefit has important realistic meaning.
The current common fresh-keeping treating method of pleurotus eryngii is that Preservation Treatment liquid is sprayed to it, but treatment fluid is mostly just sprayed
In top layer, cause fresh-keeping effect not good, and put it into impregnation process in Preservation Treatment liquid and then occur that processing time is long
Problem.
The content of the invention
The purpose of the present invention is that there is provided a kind of fresh-keeping process technique of pleurotus eryngii the problem of being directed to existing.
The present invention is achieved by the following technical solutions：
A kind of fresh-keeping process technique of pleurotus eryngii, comprises the following steps：
（1）Antistaling agent is prepared：
Weigh that material is configured in antistaling agent, described antistaling agent each composition and correspondence content is by correspondence content：Calcium chloride
0.03 ~ 0.05wt%, 10 ~ 20mg/L of rutin sophorin, 5 ~ 8mg/L of ozone, surplus is water；
（2）Pretreatment of raw material：
Choose it is uniform in size, have no mechanical damage, the pleurotus eryngii of no disease and pests harm as raw material, enter after being rinsed with clear water according still further to demand
It is standby after row segment processing；
（3）Preservation Treatment：
A. by step（2）Pleurotus eryngii after processing is put into progress primary steam explosion treatment, steam used in steam blasting machine
Medium is pure water, and during which to control the temperature in steam blasting machine be 130 ~ 135 DEG C, pressure is at 1.3 ~ 1.5MPa, heat-insulation pressure keeping
Manage 15 ~ 20s after relieving shot, after the completion of take out standby；
B. the pleurotus eryngii after a processing will be operated to be placed again into progress indirect steam explosion treatment, steaming used in steam blasting machine
Vapour medium is step（1）The antistaling agent of preparation, during which to control the temperature in steam blasting machine be 110 ~ 115 DEG C, pressure be 0.5 ~
0.7MPa, heat-insulation pressure keeping handle 7 ~ 10s after relieving shot, after the completion of take out standby；
（4）Cryopreservation：
To step（3）Pleurotus eryngii after processing is placed under low temperature environment and stored.
Further, step（4）Described in low temperature environment temperature be 2 ~ 6 DEG C.
Existing most fresh-keeping liquid impregnation process are put into pleurotus eryngii in the fresh-keeping liquid prepared in advance, generally go through length
Up to after the immersion treatment of a few hours, then storage is drawn off, this mode causes that process cycle is longer, and the dipping liquid measure of consumption
Greatly, the waste liquid that the later stage causes is not disposable, while fresh-keeping effect is also relatively limited.Improvement processing has been carried out to this present invention, its
Middle first uniqueness has prepared antistaling agent, from calcium chloride, rutin sophorin and ozone as active ingredient, has been effectively ensured to bacterium, enzyme etc.
The inhibition of activity, with good fresh-keeping effect, afterwards to having carried out steam twice during the Preservation Treatment of pleurotus eryngii
Explosion treatment, the first time Steam explosion treatment overall institutional framework of loose pleurotus eryngii, and being carried out to a variety of enzymes, bacterium well
Inactivation treatment, is that subsequent operation is laid a good foundation, has then carried out indirect steam explosion treatment, the medium of steam blasting
From the antistaling agent prepared in advance, now the active ingredient of antistaling agent can be efficiently quick under the comprehensive function of explosion treatment twice
Infiltration pleurotus eryngii inside, strengthen fresh-keeping effect, while high temperature high pressure process during steam blasting can further enhance again it is fresh-keeping
The effect of active ingredient is played in agent.
The present invention has advantages below compared with prior art：
Under the comprehensive function of each step, fresh-keeping process technique of the present invention can effectively lift the Preservation Treatment effect to pleurotus eryngii
Really, the antistaling agent of preparation is safe and reliable, extends the fresh keeping time of pleurotus eryngii well, and this method disposed of in its entirety duration compared with
Short, the amount of the antistaling agent consumed is greatly decreased, and production cost can be reduced into more than 20%, while environment is protected again, with very
Good promotional value.
Embodiment
Embodiment 1
A kind of fresh-keeping process technique of pleurotus eryngii, comprises the following steps：
（1）Antistaling agent is prepared：
Weigh that material is configured in antistaling agent, described antistaling agent each composition and correspondence content is by correspondence content：Calcium chloride
0.03wt%, rutin sophorin 10mg/L, ozone 5mg/L, surplus is water；
（2）Pretreatment of raw material：
Choose it is uniform in size, have no mechanical damage, the pleurotus eryngii of no disease and pests harm as raw material, enter after being rinsed with clear water according still further to demand
It is standby after row segment processing；
（3）Preservation Treatment：
A. by step（2）Pleurotus eryngii after processing is put into progress primary steam explosion treatment, steam used in steam blasting machine
Medium is pure water, and during which to control the temperature in steam blasting machine be 130 DEG C, pressure is to unload after 1.3MPa, heat-insulation pressure keeping processing 15s
Press explosion, after the completion of take out standby；
B. the pleurotus eryngii after a processing will be operated to be placed again into progress indirect steam explosion treatment, steaming used in steam blasting machine
Vapour medium is step（1）The antistaling agent of preparation, during which to control the temperature in steam blasting machine be 110 DEG C, pressure is 0.5MPa, is protected
Relieving shot after warm pressurize processing 7s, after the completion of take out standby；
（4）Cryopreservation：
To step（3）Pleurotus eryngii after processing is placed under low temperature environment and stored.
Further, step（4）Described in low temperature environment temperature be 2 ~ 3 DEG C.
Embodiment 2
A kind of fresh-keeping process technique of pleurotus eryngii, comprises the following steps：
（1）Antistaling agent is prepared：
Weigh that material is configured in antistaling agent, described antistaling agent each composition and correspondence content is by correspondence content：Calcium chloride
0.04wt%, rutin sophorin 15mg/L, ozone 7mg/L, surplus is water；
（2）Pretreatment of raw material：
Choose it is uniform in size, have no mechanical damage, the pleurotus eryngii of no disease and pests harm as raw material, enter after being rinsed with clear water according still further to demand
It is standby after row segment processing；
（3）Preservation Treatment：
A. by step（2）Pleurotus eryngii after processing is put into progress primary steam explosion treatment, steam used in steam blasting machine
Medium is pure water, and during which to control the temperature in steam blasting machine be 132 DEG C, pressure is to unload after 1.4MPa, heat-insulation pressure keeping processing 18s
Press explosion, after the completion of take out standby；
B. the pleurotus eryngii after a processing will be operated to be placed again into progress indirect steam explosion treatment, steaming used in steam blasting machine
Vapour medium is step（1）The antistaling agent of preparation, during which to control the temperature in steam blasting machine be 113 DEG C, pressure is 0.6MPa, is protected
Relieving shot after warm pressurize processing 9s, after the completion of take out standby；
（4）Cryopreservation：
To step（3）Pleurotus eryngii after processing is placed under low temperature environment and stored.
Further, step（4）Described in low temperature environment temperature be 3 ~ 5 DEG C.
Embodiment 3
A kind of fresh-keeping process technique of pleurotus eryngii, comprises the following steps：
（1）Antistaling agent is prepared：
Weigh that material is configured in antistaling agent, described antistaling agent each composition and correspondence content is by correspondence content：Calcium chloride
0.05wt%, rutin sophorin 20mg/L, ozone 8mg/L, surplus is water；
（2）Pretreatment of raw material：
Choose it is uniform in size, have no mechanical damage, the pleurotus eryngii of no disease and pests harm as raw material, enter after being rinsed with clear water according still further to demand
It is standby after row segment processing；
（3）Preservation Treatment：
A. by step（2）Pleurotus eryngii after processing is put into progress primary steam explosion treatment, steam used in steam blasting machine
Medium is pure water, and during which to control the temperature in steam blasting machine be 135 DEG C, pressure is to unload after 1.5MPa, heat-insulation pressure keeping processing 20s
Press explosion, after the completion of take out standby；
B. the pleurotus eryngii after a processing will be operated to be placed again into progress indirect steam explosion treatment, steaming used in steam blasting machine
Vapour medium is step（1）The antistaling agent of preparation, during which to control the temperature in steam blasting machine be 115 DEG C, pressure is 0.7MPa, is protected
Relieving shot after warm pressurize processing 10s, after the completion of take out standby；
（4）Cryopreservation：
To step（3）Pleurotus eryngii after processing is placed under low temperature environment and stored.
Further, step（4）Described in low temperature environment temperature be 5 ~ 6 DEG C.
Comparative example 1
This comparative example 1 compared with Example 2, saves step（3）Preservation Treatment operates a processing, method and step in addition
All same.
Comparative example 2
This comparative example 2 compared with Example 2, in step（3）In Preservation Treatment operation b processing, still entered using either pure steam
Row Steam explosion treatment, change is immersed in again in antistaling agent according to a conventional method after the pleurotus eryngii after explosion treatment is taken out,
Method and step all same in addition.
Comparative example 3
This comparative example 3 compared with Example 2, in step（1）During antistaling agent is prepared, ozone composition is saved, side in addition
Method step all same.
Control group
Existing pleurotus eryngii antistaling agent immersion treatment preservation method.
In order to contrast effect of the present invention, from the pleurotus eryngii with a collection of harvesting as experimental subjects, above-mentioned implementation is used respectively
Example 2, comparative example 1, comparative example 2, comparative example 3, the method described in control group carry out store and processing processing, complete
Its quality is tested afterwards, shown in table 1 specific as follows：
Table 1
| POD activity（U·g-1·h-1FW） | PAL activity（U·g-1·h-1FW） | |
| Embodiment 2 | 75.8 | 6.6 |
| Comparative example 1 | 88.5 | 11.4 |
| Comparative example 2 | 82.7 | 8.2 |
| Comparative example 3 | 85.8 | 9.5 |
| Control group | 98.4 | 15.8 |
Note：POD activity and PAL activity described in upper table 1 are that the pleurotus eryngii after just Preservation Treatment is measured, sampling
It is the core tissue for choosing pleurotus eryngii, described POD activity and PAL activity determination methods are specially：Peroxidase（POD）It is living
Property test be to use guaiacol method, that is, cut pleurotus eryngii core tissue 1.0g, plus 50mmolL-1pH7.0PBS（Containing 1%PVP）
And appropriate amount of quartz sand, ice bath grinding homogenate, low temperature（0 ~ 4 DEG C, 1000r/min）15min is centrifuged, takes supernatant to save backup, enzyme
Reaction system includes the μ L30%H of 1.0mL0.4% guaiacol+172O2+ 485 μ L distilled water+1.0mL50mmolL-1pH7.0PBS
+ 0.5mL enzyme liquids, determine its change in 180s, with OD per minute under 470nm470nmChange 0.01 is 1 POD enzymatic activity
Unit, unit is Ug-1·h-1FW；Phenylalaninase（PAL）Active testing is with reference to Koukol methods, that is, to cut pleurotus eryngii core
Portion organizes 5g, then+10mL 5mM+0.5 gram of polyvinylpyrrolidone of thin base ethanol borate buffer（PVP）, then grinding, it is even
Slurry pumping filtering, filtrate centrifugation after take supernatant standby, be blended into 1ml0.02ML phenylalanine+2mL distilled water+1mL enzyme liquids in
In test tube, light absorption value is determined at 290nm using spectrophotometer, with needed for absorbing value changes 0.01 at the 290nm per hour
Enzyme amount is a unit, and unit is Ug-1·h-1FW。
Pleurotus eryngii interior tissue enzymatic activity it can be seen from upper table 1 after present invention processing obtains very big reduction, is conducive to
The lifting of its fresh-keeping effect.
In order to further contrast effect of the present invention, the pleurotus eryngii after the processing of above-mentioned each group is put under natural conditions, observed
Its surface characteristic, physical record see the table below 2：
Table 2
Processing method of the present invention is significantly increased for the Preservation Treatment effect of pleurotus eryngii it can be seen from upper table 2, great to promote
Value.
Claims (2)
1. a kind of fresh-keeping process technique of pleurotus eryngii, it is characterised in that comprise the following steps：
（1）Antistaling agent is prepared：
Weigh that material is configured in antistaling agent, described antistaling agent each composition and correspondence content is by correspondence content：Calcium chloride
0.03 ~ 0.05wt%, 10 ~ 20mg/L of rutin sophorin, 5 ~ 8mg/L of ozone, surplus is water；
（2）Pretreatment of raw material：
Choose it is uniform in size, have no mechanical damage, the pleurotus eryngii of no disease and pests harm as raw material, enter after being rinsed with clear water according still further to demand
It is standby after row segment processing；
（3）Preservation Treatment：
A. by step（2）Pleurotus eryngii after processing is put into progress primary steam explosion treatment, steam used in steam blasting machine
Medium is pure water, and during which to control the temperature in steam blasting machine be 130 ~ 135 DEG C, pressure is at 1.3 ~ 1.5MPa, heat-insulation pressure keeping
Manage 15 ~ 20s after relieving shot, after the completion of take out standby；
B. the pleurotus eryngii after a processing will be operated to be placed again into progress indirect steam explosion treatment, steaming used in steam blasting machine
Vapour medium is step（1）The antistaling agent of preparation, during which to control the temperature in steam blasting machine be 110 ~ 115 DEG C, pressure be 0.5 ~
0.7MPa, heat-insulation pressure keeping handle 7 ~ 10s after relieving shot, after the completion of take out standby；
（4）Cryopreservation：
To step（3）Pleurotus eryngii after processing is placed under low temperature environment and stored.
2. a kind of fresh-keeping process technique of pleurotus eryngii according to claim 1, it is characterised in that step（4）Described in
The temperature of low temperature environment is 2 ~ 6 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348542.1A CN107258891A (en) | 2017-05-17 | 2017-05-17 | A kind of fresh-keeping process technique of pleurotus eryngii |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348542.1A CN107258891A (en) | 2017-05-17 | 2017-05-17 | A kind of fresh-keeping process technique of pleurotus eryngii |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107258891A true CN107258891A (en) | 2017-10-20 |
Family
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| CN103141558A (en) * | 2013-03-27 | 2013-06-12 | 王金玉 | Lychee preservative and fresh-keeping method |
| CN103461465A (en) * | 2013-09-10 | 2013-12-25 | 兴化市绿禾食品有限公司 | Processing method of dehydrated spinach |
| CN103478222A (en) * | 2013-09-10 | 2014-01-01 | 兴化市绿禾食品有限公司 | Method for manufacturing dehydrated broccoli |
| CN103478221A (en) * | 2013-09-10 | 2014-01-01 | 兴化市绿禾食品有限公司 | Dehydrated pumpkin processing method |
| CN103976009A (en) * | 2014-05-26 | 2014-08-13 | 中国科学院合肥物质科学研究院 | Processing method of dried pistacia chinensis bunge |
| CN105660835A (en) * | 2016-03-14 | 2016-06-15 | 徐州绿健脱水菜有限责任公司 | Bacterium-reducing method for dehydrated garlic products |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103141558A (en) * | 2013-03-27 | 2013-06-12 | 王金玉 | Lychee preservative and fresh-keeping method |
| CN103461465A (en) * | 2013-09-10 | 2013-12-25 | 兴化市绿禾食品有限公司 | Processing method of dehydrated spinach |
| CN103478222A (en) * | 2013-09-10 | 2014-01-01 | 兴化市绿禾食品有限公司 | Method for manufacturing dehydrated broccoli |
| CN103478221A (en) * | 2013-09-10 | 2014-01-01 | 兴化市绿禾食品有限公司 | Dehydrated pumpkin processing method |
| CN103976009A (en) * | 2014-05-26 | 2014-08-13 | 中国科学院合肥物质科学研究院 | Processing method of dried pistacia chinensis bunge |
| CN105660835A (en) * | 2016-03-14 | 2016-06-15 | 徐州绿健脱水菜有限责任公司 | Bacterium-reducing method for dehydrated garlic products |
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Application publication date: 20171020 |