CN104012994A - Preparation method of freeze-dried bamboo weevils - Google Patents
Preparation method of freeze-dried bamboo weevils Download PDFInfo
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- CN104012994A CN104012994A CN201410237749.8A CN201410237749A CN104012994A CN 104012994 A CN104012994 A CN 104012994A CN 201410237749 A CN201410237749 A CN 201410237749A CN 104012994 A CN104012994 A CN 104012994A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 27
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 27
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 27
- 239000011425 bamboo Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 241001330002 Bambuseae Species 0.000 title abstract description 26
- 241000254171 Curculionidae Species 0.000 title abstract description 9
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000001954 sterilising effect Effects 0.000 claims abstract description 13
- 238000009777 vacuum freeze-drying Methods 0.000 claims abstract description 12
- 238000007710 freezing Methods 0.000 claims abstract description 7
- 230000008014 freezing Effects 0.000 claims abstract description 7
- 238000002203 pretreatment Methods 0.000 claims abstract description 7
- 241000813110 Cyrtotrachelus Species 0.000 claims description 135
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 71
- 238000009835 boiling Methods 0.000 claims description 45
- 238000004108 freeze drying Methods 0.000 claims description 37
- 238000004140 cleaning Methods 0.000 claims description 27
- 238000004659 sterilization and disinfection Methods 0.000 claims description 16
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 13
- 235000009508 confectionery Nutrition 0.000 claims description 13
- 229940069338 potassium sorbate Drugs 0.000 claims description 13
- 235000010241 potassium sorbate Nutrition 0.000 claims description 13
- 239000004302 potassium sorbate Substances 0.000 claims description 13
- 240000002234 Allium sativum Species 0.000 claims description 12
- 235000006886 Zingiber officinale Nutrition 0.000 claims description 12
- 235000004611 garlic Nutrition 0.000 claims description 12
- 235000008397 ginger Nutrition 0.000 claims description 12
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 210000001835 viscera Anatomy 0.000 claims description 12
- 235000002639 sodium chloride Nutrition 0.000 claims description 6
- 206010033546 Pallor Diseases 0.000 claims description 5
- 240000005373 Panax quinquefolius Species 0.000 claims description 5
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 5
- 244000273928 Zingiber officinale Species 0.000 claims 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 239000000796 flavoring agent Substances 0.000 abstract description 4
- 235000019634 flavors Nutrition 0.000 abstract description 4
- 244000005700 microbiome Species 0.000 abstract description 3
- 208000006820 Arthralgia Diseases 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 208000011580 syndromic disease Diseases 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 17
- 241000234314 Zingiber Species 0.000 description 10
- 239000012459 cleaning agent Substances 0.000 description 10
- 235000016709 nutrition Nutrition 0.000 description 6
- 230000007774 longterm Effects 0.000 description 5
- 230000035764 nutrition Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 241000193155 Clostridium botulinum Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000235342 Saccharomycetes Species 0.000 description 1
- 241000607142 Salmonella Species 0.000 description 1
- 241000191940 Staphylococcus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000033458 reproduction Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/56—Materials from animals other than mammals
- A61K35/63—Arthropods
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
-
- 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
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Insects & Arthropods (AREA)
- Public Health (AREA)
- Medicinal Chemistry (AREA)
- Mycology (AREA)
- Nutrition Science (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
A preparation method of freeze-dried bamboo weevils is characterized by comprising the following steps in sequence: pre-treatment, ultrasonic cleaning, sterilizing, cooling, laying of the bamboo weevils on disks, quick freezing, and vacuum freeze-drying. The bamboo weevils are washed clean, and microorganisms on the limbs of the bamboo weevils can be killed through the sterilizing process. In the premise of not destroying the original product flavor, the freshness of the freeze-dried bamboo weevils is enhanced; the shelf life of the products is greatly prolonged; and the prepared freeze-dried bamboo weevils can be well restored, so that the freeze-dried bamboo weevils are especially suitable for patients suffering from wind-damp arthralgia syndromes.
Description
Technical field
The present invention relates to Cyrtotra chelus longimanus (Fabr) process field, particularly relate to a kind of preparation method of freeze-drying Cyrtotra chelus longimanus (Fabr).
Background technology
Cyrtotra chelus longimanus (Fabr) is named again bamboo shoot worm or bamboo shoots worm.
Cyrtotra chelus longimanus (Fabr) belongs to coleoptera Curculionidae, is distributed in the bamboo producing region on the ground such as Shaanxi, Zhejiang, Jiangxi, Fujian, Taiwan, Hunan, Guangdong, Guangxi, Sichuan, and be the primary pest of bamboo class.With larva moth food bamboo shoots, make bamboo shoot withered, also can eat into food high tender bamboo more than 1 meter, make its undergrowth, internode shortens, broken down in the middle, causes top sprig to grow thickly and the abnormal phenomenon such as tender bamboo lobe grooving, and result makes tender bamboo corruption; Cause China every year in the season that Cyrtotra chelus longimanus (Fabr) occurs, a lot of local bamboo groves are damaged, and cause the production declining of bamboo, bamboo shoots; Most people all adopts the mode of being killed to prevent insect pest, and such mode deals with also inconvenient.
And Cyrtotra chelus longimanus (Fabr) is effectively Chinese medicine material, can be used for rheumatism bi Zheng, there is the effect of dispelling rheumatism, owing to take bamboo shoots as food, also a large amount of nutritional labeling of bamboo shoots is absorbed, Cyrtotra chelus longimanus (Fabr) is nutritious, or high protein animal, edible and medication is worth very high, therefore can be after insect is caught period, process processing, market value is high.
Cyrtotra chelus longimanus (Fabr) is not every Ji Douyou, misses season and just cannot have, and cannot meet at present people's demand, does not allow people all can enjoy Cyrtotra chelus longimanus (Fabr) at all seasons.
Summary of the invention
The object of the invention is to overcome the problems referred to above that prior art exists, propose a kind of preparation method of freeze-drying Cyrtotra chelus longimanus (Fabr).The present invention can clean up Cyrtotra chelus longimanus (Fabr) well, also has bactericidal action simultaneously, can kill the microorganism containing on its limbs; In the situation that do not destroy the local flavor of original product, to freeze-drying Cyrtotra chelus longimanus (Fabr), increase fresh; Greatly improve shelf life of products; The restoration of the freeze-drying Cyrtotra chelus longimanus (Fabr) producing is good, and the crowd who is particularly suitable for suffering from rheumatism bi Zheng is edible.
The present invention realizes by the following technical solutions:
A preparation method for freeze-drying Cyrtotra chelus longimanus (Fabr), is characterized in that comprising the following steps successively:
Pretreatment: first Cyrtotra chelus longimanus (Fabr) is put into boiling water and scalded extremely to it, then the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing, afterbody and internal organ are removed, finally with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the first time;
Ultrasonic Cleaning: after adopting supersonic wave cleaning machine to clean Cyrtotra chelus longimanus (Fabr) after pretreatment, then with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the second time;
Sterilization: the Cyrtotra chelus longimanus (Fabr) after Ultrasonic Cleaning is put into and is added with ginger, salt, garlic and verdant boiling water blanching 5-10 minute, and the temperature of boiling water is 90 ℃～100 ℃;
Cooling: the Cyrtotra chelus longimanus (Fabr) after sterilization is being put into sterilized water cool to room temperature, adding potassium sorbate and sweet mellow wine in cooling procedure, be 60-90 minute cool time;
Sheng dish: claim 3Kg～6Kg through cooled Cyrtotra chelus longimanus (Fabr), be laid in uniformly in charging tray;
Quick-frozen: the charging tray that Cyrtotra chelus longimanus (Fabr) is housed is sent in subzero 35 ℃ of following quick freezing repositories, and freeze-off time is 8-12 hour, until the central temperature of Cyrtotra chelus longimanus (Fabr) drops to below-30 ℃;
Vacuum freeze drying: the Cyrtotra chelus longimanus (Fabr) after quick-frozen is put into cold well temperature in the vacuum freeze-drying storehouse below-40 ℃, carry out delivering from godown after 15～20 hours dry under the vacuum condition of 40Pa～60Pa; After delivering from godown, obtain moisture at the freeze-drying Cyrtotra chelus longimanus (Fabr) below 5%.
In described pre-treatment step, first Cyrtotra chelus longimanus (Fabr) being put into boiling water is scalded extremely to it, again the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing and afterbody are removed, afterbody adopts bamboo let to stretch in Cyrtotra chelus longimanus (Fabr) body internal organ are drawn and removed from afterbody after removing again, finally with clear water to Cyrtotra chelus longimanus (Fabr) to cleaning for the first time.
In described Ultrasonic Cleaning step, the frequency of supersonic wave cleaning machine is 25 KHz～40 KHzs, and the operating temperature of supersonic wave cleaning machine is 50 ℃～60 ℃.Operating temperature is that in 50 ℃～60 ℃ supersonic wave cleaning machines, hyperacoustic cavitation effect is best, and now cleaning agent, also in optimal clean state, if temperature is too low or too high, all can affect hyperacoustic cavitation effect, and the effect of cleaning agent also can be affected.
In described sterilisation step, the addition of ginger is 0.1%～0.5% of boiling water amount, and the addition of salt is 0.1%～0.5% of boiling water amount, and the addition of garlic is 0.1%～0.5% of boiling water amount, and verdant addition is 0.5%～1% of boiling water amount.
In described cooling step, the addition of potassium sorbate is 0.1%～0.5% of the cold water water yield; The addition of sweet mellow wine is 0.1%～0.2% of the cold water water yield.
Compared with prior art, its advantage is in the present invention:
1, the present invention can clean up Cyrtotra chelus longimanus (Fabr) well, also has bactericidal action simultaneously, can kill the microorganism containing on its limbs; In the situation that do not destroy the local flavor of original product, to freeze-drying Cyrtotra chelus longimanus (Fabr), increase fresh; Greatly improve shelf life of products; The moisture of the freeze-drying Cyrtotra chelus longimanus (Fabr) producing is below 5%, and restoration is good, and the crowd who is particularly suitable for suffering from rheumatism bi Zheng is edible.
2, the present invention adopts pre-treatment step, first Cyrtotra chelus longimanus (Fabr) is put into boiling water and is scalded extremely to it, then the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing, afterbody and internal organ are removed, and finally with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the first time; First scalded the integrality that extremely can keep well Cyrtotra chelus longimanus (Fabr), again head, four limbs, wing, afterbody and internal organ are removed, can, effectively by the discharge of the impurity in Cyrtotra chelus longimanus (Fabr) inconvenient edible position removal and body, obtain clean, free of contamination Cyrtotra chelus longimanus (Fabr).
3, the present invention adopts ginger, salt, garlic and verdantly carries out sterilization, simultaneously all right seasoning, the addition of ginger is 0.1%～0.5% of boiling water amount, the addition of salt is 0.1%～0.5% of boiling water amount, the addition of garlic is 0.1%～0.5% of boiling water amount, and verdant addition is 0.5%～1% of boiling water amount; Do not destroy the local flavor of original product, also promising Cyrtotra chelus longimanus (Fabr) increases fresh function simultaneously.
4, the present invention adopts potassium sorbate and sweet mellow wine to soak, and the addition of potassium sorbate is 0.1%～0.5% of the cold water water yield, and the addition of sweet mellow wine is 0.1%～0.2% of the cold water water yield; Potassium sorbate is mould fungus inhibition effectively, and the activity of saccharomycete and aerobic bacteria can also prevent the harmful microbe Growth and reproductions such as clostridium botulinum, staphylococcus, salmonella; Sweet mellow wine also has the weak feature of hygroscopicity, thereby reaches the moisture absorption moisture regain that slows down dry products, greatly improves shelf life of products.
5, the present invention adopts ultrasonic cleaning technology: the frequency of supersonic wave cleaning machine is 25 KHz～40 KHzs, and the operating temperature of supersonic wave cleaning machine is 50 ℃～60 ℃.Operating temperature is that in 50 ℃～60 ℃ supersonic wave cleaning machines, hyperacoustic cavitation effect is best, and now cleaning agent, also in optimal clean state, if temperature is too low or too high, all can affect hyperacoustic cavitation effect, and the effect of cleaning agent also can be affected.
6, the present invention adopts cryogenic vacuum Freeze Drying Technique, and low-temperature vacuum drying has kept the original color of product, shape not to be damaged; The nutrition of the Cyrtotra chelus longimanus (Fabr) product of process freeze-drying is not damaged, and has obtained retaining to greatest extent; The moisture of having discharged Cyrtotra chelus longimanus (Fabr) 95%～99% through freeze drying, its dry product moisture is very little, and product is convenient to long-term storage and transportation; Restoration is good, after cryodesiccated Cyrtotra chelus longimanus (Fabr) product adds water, at 1～2 minute, just can restore.
7, the freeze-drying Cyrtotra chelus longimanus (Fabr) product of manufacture of the present invention has advantage: the Cyrtotra chelus longimanus (Fabr) product of manufacture of the present invention is to adopt Vacuum Freezing & Drying Technology to be dried, owing to being that low-temperature vacuum drying has kept the original color of product, shape not to be damaged; Nutrition is not damaged, and has obtained retaining to greatest extent; Product has been discharged the moisture of Cyrtotra chelus longimanus (Fabr) 95%～99% through freeze drying, its dry product moisture is very little, and product is convenient to long-term storage and transportation; Product instant, direct-edible, also can be as fresh Cyrtotra chelus longimanus (Fabr) stewed, fried etc.; Product restoration is good, after cryodesiccated product adds water, at 1～2 minute, just can restore, and the crowd who is particularly suitable for suffering from rheumatism bi Zheng is edible.
Accompanying drawing explanation
fig. 1 is process chart of the present invention.
The specific embodiment
By concrete enforcement example, technical scheme of the present invention is further described below.
Embodiment 1:
A preparation method for freeze-drying Cyrtotra chelus longimanus (Fabr), is characterized in that comprising the following steps successively:
Pretreatment: first Cyrtotra chelus longimanus (Fabr) is put into boiling water and scalded extremely to it, then the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing, afterbody and internal organ are removed, finally with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the first time;
Ultrasonic Cleaning: after adopting supersonic wave cleaning machine to clean Cyrtotra chelus longimanus (Fabr) after pretreatment, then with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the second time;
Sterilization: the Cyrtotra chelus longimanus (Fabr) after Ultrasonic Cleaning is put into and is added with ginger, salt, garlic and verdant boiling water blanching 5 minutes, and the temperature of boiling water is 90 ℃;
Cooling: the Cyrtotra chelus longimanus (Fabr) after sterilization is being put into sterilized water cool to room temperature, adding potassium sorbate and sweet mellow wine in cooling procedure, be 60 minutes cool time;
Sheng dish: claim 3Kg through cooled Cyrtotra chelus longimanus (Fabr), be laid in uniformly in charging tray;
Quick-frozen: the charging tray that Cyrtotra chelus longimanus (Fabr) is housed is sent in subzero 35 ℃ of following quick freezing repositories, and freeze-off time is 8 hours, until the central temperature of Cyrtotra chelus longimanus (Fabr) drops to below-30 ℃;
Vacuum freeze drying: the Cyrtotra chelus longimanus (Fabr) after quick-frozen is put into cold well temperature in the vacuum freeze-drying storehouse below-40 ℃, carry out delivering from godown after 15 hours dry under the vacuum condition of 40Pa; After delivering from godown, obtain moisture at the freeze-drying Cyrtotra chelus longimanus (Fabr) below 5%.
In described pre-treatment step, first Cyrtotra chelus longimanus (Fabr) being put into boiling water is scalded extremely to it, again the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing and afterbody are removed, afterbody adopts bamboo let to stretch in Cyrtotra chelus longimanus (Fabr) body internal organ are drawn and removed from afterbody after removing again, finally with clear water to Cyrtotra chelus longimanus (Fabr) to cleaning for the first time.
In described Ultrasonic Cleaning step, the frequency of supersonic wave cleaning machine is 25 KHzs, and the operating temperature of supersonic wave cleaning machine is 50 ℃.Operating temperature is that in 50 ℃～60 ℃ supersonic wave cleaning machines, hyperacoustic cavitation effect is best, and now cleaning agent, also in optimal clean state, if temperature is too low or too high, all can affect hyperacoustic cavitation effect, and the effect of cleaning agent also can be affected.
In described sterilisation step, the addition of ginger is 0.1% of boiling water amount, and the addition of salt is 0.1% of boiling water amount, and the addition of garlic is 0.1% of boiling water amount, and verdant addition is 0.5% of boiling water amount.
In described cooling step, the addition of potassium sorbate is 0.1% of the cold water water yield; The addition of sweet mellow wine is 0.1% of the cold water water yield.
The freeze-drying Cyrtotra chelus longimanus (Fabr) that adopts the present embodiment to produce, moisture is below 5%; And kept the original color of product, shape not to be damaged; The nutrition of the Cyrtotra chelus longimanus (Fabr) product of process freeze-drying is not damaged, and has obtained retaining to greatest extent; Through freeze drying, discharged in Cyrtotra chelus longimanus (Fabr) 95% moisture, obtained the freeze-drying Cyrtotra chelus longimanus (Fabr) that moisture is very little, product is convenient to long-term storage and transportation.Restoration is good, after cryodesiccated Cyrtotra chelus longimanus (Fabr) product adds water, at 2 minutes, just can restore.
Embodiment 2:
A preparation method for freeze-drying Cyrtotra chelus longimanus (Fabr), is characterized in that comprising the following steps successively:
Pretreatment: first Cyrtotra chelus longimanus (Fabr) is put into boiling water and scalded extremely to it, then the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing, afterbody and internal organ are removed, finally with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the first time;
Ultrasonic Cleaning: after adopting supersonic wave cleaning machine to clean Cyrtotra chelus longimanus (Fabr) after pretreatment, then with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the second time;
Sterilization: the Cyrtotra chelus longimanus (Fabr) after Ultrasonic Cleaning is put into and is added with ginger, salt, garlic and verdant boiling water blanching 7 minutes, and the temperature of boiling water is 95 ℃;
Cooling: the Cyrtotra chelus longimanus (Fabr) after sterilization is being put into sterilized water cool to room temperature, adding potassium sorbate and sweet mellow wine in cooling procedure, be 75 minutes cool time;
Sheng dish: claim 4Kg through cooled Cyrtotra chelus longimanus (Fabr), be laid in uniformly in charging tray;
Quick-frozen: the charging tray that Cyrtotra chelus longimanus (Fabr) is housed is sent in subzero 35 ℃ of following quick freezing repositories, and freeze-off time is 10 hours, until the central temperature of Cyrtotra chelus longimanus (Fabr) drops to below-30 ℃;
Vacuum freeze drying: the Cyrtotra chelus longimanus (Fabr) after quick-frozen is put into cold well temperature in the vacuum freeze-drying storehouse below-40 ℃, carry out delivering from godown after 18 hours dry under the vacuum condition of 50Pa; After delivering from godown, obtain moisture at the freeze-drying Cyrtotra chelus longimanus (Fabr) below 4%.
In described pre-treatment step, first Cyrtotra chelus longimanus (Fabr) being put into boiling water is scalded extremely to it, again the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing and afterbody are removed, afterbody adopts bamboo let to stretch in Cyrtotra chelus longimanus (Fabr) body internal organ are drawn and removed from afterbody after removing again, finally with clear water to Cyrtotra chelus longimanus (Fabr) to cleaning for the first time.
In described Ultrasonic Cleaning step, the frequency of supersonic wave cleaning machine is 30 KHzs, and the operating temperature of supersonic wave cleaning machine is 55 ℃.Operating temperature is that in 50 ℃～60 ℃ supersonic wave cleaning machines, hyperacoustic cavitation effect is best, and now cleaning agent, also in optimal clean state, if temperature is too low or too high, all can affect hyperacoustic cavitation effect, and the effect of cleaning agent also can be affected.
In described sterilisation step, the addition of ginger is 0.3% of boiling water amount, and the addition of salt is 0.3% of boiling water amount, and the addition of garlic is 0.3% of boiling water amount, and verdant addition is 0.8% of boiling water amount.
In described cooling step, the addition of potassium sorbate is 0.3% of the cold water water yield; The addition of sweet mellow wine is 0.3% of the cold water water yield.
The freeze-drying Cyrtotra chelus longimanus (Fabr) that adopts the present embodiment to produce, moisture is below 4%; And kept the original color of product, shape not to be damaged; The nutrition of the Cyrtotra chelus longimanus (Fabr) product of process freeze-drying is not damaged, and has obtained retaining to greatest extent; Through freeze drying, discharged in Cyrtotra chelus longimanus (Fabr) 96% moisture, obtained the freeze-drying Cyrtotra chelus longimanus (Fabr) that moisture is very little, product is convenient to long-term storage and transportation.Restoration is good, after cryodesiccated Cyrtotra chelus longimanus (Fabr) product adds water, at 1 minute half, just can restore.
Embodiment 3:
A preparation method for freeze-drying Cyrtotra chelus longimanus (Fabr), is characterized in that comprising the following steps successively:
Pretreatment: first Cyrtotra chelus longimanus (Fabr) is put into boiling water and scalded extremely to it, then the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing, afterbody and internal organ are removed, finally with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the first time;
Ultrasonic Cleaning: after adopting supersonic wave cleaning machine to clean Cyrtotra chelus longimanus (Fabr) after pretreatment, then with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the second time;
Sterilization: the Cyrtotra chelus longimanus (Fabr) after Ultrasonic Cleaning is put into and is added with ginger, salt, garlic and verdant boiling water blanching 10 minutes, and the temperature of boiling water is 100 ℃;
Cooling: the Cyrtotra chelus longimanus (Fabr) after sterilization is being put into sterilized water cool to room temperature, adding potassium sorbate and sweet mellow wine in cooling procedure, be 90 minutes cool time;
Sheng dish: claim 6Kg through cooled Cyrtotra chelus longimanus (Fabr), be laid in uniformly in charging tray;
Quick-frozen: the charging tray that Cyrtotra chelus longimanus (Fabr) is housed is sent in subzero 35 ℃ of following quick freezing repositories, and freeze-off time is 12 hours, until the central temperature of Cyrtotra chelus longimanus (Fabr) drops to below-30 ℃;
Vacuum freeze drying: the Cyrtotra chelus longimanus (Fabr) after quick-frozen is put into cold well temperature in the vacuum freeze-drying storehouse below-40 ℃, carry out delivering from godown after 20 hours dry under the vacuum condition of 60Pa; After delivering from godown, obtain moisture at the freeze-drying Cyrtotra chelus longimanus (Fabr) below 3%.
In described pre-treatment step, first Cyrtotra chelus longimanus (Fabr) being put into boiling water is scalded extremely to it, again the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing and afterbody are removed, afterbody adopts bamboo let to stretch in Cyrtotra chelus longimanus (Fabr) body internal organ are drawn and removed from afterbody after removing again, finally with clear water to Cyrtotra chelus longimanus (Fabr) to cleaning for the first time.
In described Ultrasonic Cleaning step, the frequency of supersonic wave cleaning machine is 40 KHzs, and the operating temperature of supersonic wave cleaning machine is 60 ℃.Operating temperature is that in 50 ℃～60 ℃ supersonic wave cleaning machines, hyperacoustic cavitation effect is best, and now cleaning agent, also in optimal clean state, if temperature is too low or too high, all can affect hyperacoustic cavitation effect, and the effect of cleaning agent also can be affected.
In described sterilisation step, the addition of ginger is 0.5% of boiling water amount, and the addition of salt is 0.5% of boiling water amount, and the addition of garlic is 0.5% of boiling water amount, and verdant addition is 1% of boiling water amount.
In described cooling step, the addition of potassium sorbate is 0.5% of the cold water water yield; The addition of sweet mellow wine is 0.2% of the cold water water yield.
The freeze-drying Cyrtotra chelus longimanus (Fabr) that adopts the present embodiment to produce, moisture is below 3%; And kept the original color of product, shape not to be damaged; The nutrition of the Cyrtotra chelus longimanus (Fabr) product of process freeze-drying is not damaged, and has obtained retaining to greatest extent; Through freeze drying, discharged in Cyrtotra chelus longimanus (Fabr) 97% moisture, obtained the freeze-drying Cyrtotra chelus longimanus (Fabr) that moisture is very little, product is convenient to long-term storage and transportation.Restoration is good, after cryodesiccated Cyrtotra chelus longimanus (Fabr) product adds water, at 1 minute, just can restore.
Claims (5)
1. a preparation method for freeze-drying Cyrtotra chelus longimanus (Fabr), is characterized in that comprising the following steps successively:
Pretreatment: first Cyrtotra chelus longimanus (Fabr) is put into boiling water and scalded extremely to it, then the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing, afterbody and internal organ are removed, finally with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the first time;
Ultrasonic Cleaning: after adopting supersonic wave cleaning machine to clean Cyrtotra chelus longimanus (Fabr) after pretreatment, then with clear water, Cyrtotra chelus longimanus (Fabr) is cleaned for the second time;
Sterilization: the Cyrtotra chelus longimanus (Fabr) after Ultrasonic Cleaning is put into and is added with ginger, salt, garlic and verdant boiling water blanching 5-10 minute, and the temperature of boiling water is 90 ℃～100 ℃;
Cooling: the Cyrtotra chelus longimanus (Fabr) after sterilization is being put into sterilized water cool to room temperature, adding potassium sorbate and sweet mellow wine in cooling procedure, be 60-90 minute cool time;
Sheng dish: claim 3Kg～6Kg through cooled Cyrtotra chelus longimanus (Fabr), be laid in uniformly in charging tray;
Quick-frozen: the charging tray that Cyrtotra chelus longimanus (Fabr) is housed is sent in subzero 35 ℃ of following quick freezing repositories, and freeze-off time is 8-12 hour, until the central temperature of Cyrtotra chelus longimanus (Fabr) drops to below-30 ℃;
Vacuum freeze drying: the Cyrtotra chelus longimanus (Fabr) after quick-frozen is put into cold well temperature in the vacuum freeze-drying storehouse below-40 ℃, carry out delivering from godown after 15～20 hours dry under the vacuum condition of 40Pa～60Pa; After delivering from godown, obtain moisture at the freeze-drying Cyrtotra chelus longimanus (Fabr) below 5%.
2. the preparation method of a kind of freeze-drying Cyrtotra chelus longimanus (Fabr) according to claim 1, it is characterized in that: in described pre-treatment step, first Cyrtotra chelus longimanus (Fabr) being put into boiling water is scalded extremely to it, again the head of Cyrtotra chelus longimanus (Fabr), four limbs, wing and afterbody are removed, afterbody adopts bamboo let to stretch in Cyrtotra chelus longimanus (Fabr) body internal organ are drawn and removed from afterbody after removing again, finally with clear water to Cyrtotra chelus longimanus (Fabr) to cleaning for the first time.
3. the preparation method of a kind of freeze-drying Cyrtotra chelus longimanus (Fabr) according to claim 1, is characterized in that: in described Ultrasonic Cleaning step, the frequency of supersonic wave cleaning machine is 25 KHz～40 KHzs, and the operating temperature of supersonic wave cleaning machine is 50 ℃～60 ℃.
4. the preparation method of a kind of freeze-drying Cyrtotra chelus longimanus (Fabr) according to claim 1, it is characterized in that: in described sterilisation step, the addition of ginger is 0.1%～0.5% of boiling water amount, the addition of salt is 0.1%～0.5% of boiling water amount, the addition of garlic is 0.1%～0.5% of boiling water amount, and verdant addition is 0.5%～1% of boiling water amount.
5. the preparation method of a kind of freeze-drying Cyrtotra chelus longimanus (Fabr) according to claim 1, is characterized in that: in described cooling step, the addition of potassium sorbate is 0.1%～0.5% of the cold water water yield; The addition of sweet mellow wine is 0.1%～0.2% of the cold water water yield.
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