CN104872266B - A kind of extra large shrimping sea preservation method - Google Patents
A kind of extra large shrimping sea preservation method Download PDFInfo
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- CN104872266B CN104872266B CN201410824025.3A CN201410824025A CN104872266B CN 104872266 B CN104872266 B CN 104872266B CN 201410824025 A CN201410824025 A CN 201410824025A CN 104872266 B CN104872266 B CN 104872266B
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Abstract
The invention discloses a kind of extra large shrimping sea preservation method, comprise the following steps：（1）Cleaning：After extra large shrimping is cleaned up with seawater, drain away the water；（2）Precooling：Extra large shrimping after cleaning is placed in 5 ~ 10min of immersion in 0 ~ 2 DEG C of seawater, pulls out and drains；（3）Preserved material：By antistaling agent be dissolved in temperature be in 0 ~ 2 DEG C of frozen water fresh-keeping solution, the extra large shrimping after precooling be put into fresh-keeping liquid to soak to pick up after 2 ~ 5min drained；（4）Gai Bing：After the trash ice that bottom half spreads that thickness is 3 ~ 5cm, then by step（3）In extra large shrimping be well mixed with trash ice after be laid on trash ice, finally top layer spread thickness be 10 ~ 15cm trash ice carry out cold storing and fresh-keeping.The present invention it is easy to operate, cost is low, by precooling and antistaling agent immersion coordinate preservation by low temperature again suppress shrimp Ti become and rot, shrimp body sea fresh keeping time and shrimp body quality better can effectively be extended, the preservation 7d times, shrimp this Mei of Ji You become, be adapted to large-scale promotion application.
Description
Technical field
The present invention relates to aquatic products technical field of preservation of fresh, more particularly, to a kind of extra large shrimping sea preservation method.
Background technology
Sea shrimp body is small, and moisture is high, and musculature is soft, and capture treats that fishing boat returns port and typically needs 3 ~ 5d, at this moment
The serious blackening of shrimp body through there is part to capture, the shrimp of especially first 1 ~ 2d captures is closely corrupt, and edible quality and commodity value are big
It is big to reduce, but also hinder further to influence fishing boat working dayses, directly affect productivity effect.Therefore, effective sea is developed
Shrimping sea preservation method is particularly important with extending the marine fresh keeping time of extra large shrimping.
The marine preservation method of extra large shrimping at present mainly has a cold sea water preservation and preservation by partial, wherein cold sea water preservation be by
Extra large shrimping, which is dipped in 0 DEG C or so of pure seawater, to be carried out fresh-keeping, can contact the not direct oxygen with air of shrimp body, prevent black
Become, but immersion can expand shrimp body for a long time in water, build softening poor flexibility, quality appearance is poor, is only suitable for processing peeled shrimp
Product；Preservation by partial can make shrimp body be substantially at micro- jelly state, can suppress the breeding of bacterium and the work of tyrosinase in various degree
Property, but can not completely inhibit shrimp Ti become, and preservation by partial cost is high, is not suitable for the needs of mass transit, using remaining
In certain difficulty.
Application publication number CN102726808A, data of publication of application 2012.10.17 Chinese patent disclose one kind and use marine alga
Polyphenol suppresses the method that extra large water shrimp becomes, and mainly seeweed polyphenol solution is made in new fresh seaweed by it, then seawater shrimps are placed in into sea
Soak in the more phenol solutions of algae, become by the antioxidation of seeweed polyphenol to suppress the of seawater shrimps.The weak point of this method
It is：Seeweed polyphenol only has the function that anti-blacking, thus this method can only suppress shrimp Ti become, can not effectively suppress shrimp
Microbial reproduction on body so that shrimp body is easily putrid and deteriorated, and storage life is short.
The content of the invention
The present invention is to solve the above mentioned problem present in the extra large shrimping sea preservation method of prior art, there is provided one
Kind is easy to operate, and cost is low, can extend the extra large shrimping sea preservation method of shrimp body sea fresh keeping time and shrimp body quality better.
To achieve these goals, the present invention uses following technical scheme：
A kind of extra large shrimping sea preservation method, comprises the following steps：
（1）Cleaning：After extra large shrimping is cleaned up with seawater, drain away the water.Clean to remove the bacterium being stained with shrimp body
And dirt.
（2）Precooling：Extra large shrimping after cleaning is placed in 5 ~ 10min of immersion in 0 ~ 2 DEG C of seawater, pulls out and drains.Shrimp body passes through
Precooling, the outward appearance elasticity of storage period shrimp body preferably, and by reducing the breeding of shrimp temperature suppression bacterium in time make shrimp protein
It is unlikely to decompose quickly, free tyrosine（Substrate）Concentration it is relatively low, relative can delay shrimp body blacking speed, be advantageous to anti-black
It is fresh-keeping.
（3）Preserved material：Antistaling agent is dissolved in the frozen water that temperature is 0 ~ 2 DEG C and obtains fresh-keeping solution, the extra large shrimping after precooling is put
Enter to pick up after 2 ~ 5min of immersion in fresh-keeping liquid and drain.Soak time must be strictly controlled during preserved material, it is too short invalid, it is oversize to cause shrimp
The color of body, which subtracts, takes off influence exterior quality.
（4）Gai Bing：After the trash ice that bottom half spreads that thickness is 3 ~ 5cm, then by step（3）In extra large shrimping and trash ice
It is laid on after well mixed on trash ice, finally spreading the trash ice that thickness is 10 ~ 15cm in top layer carries out cold storing and fresh-keeping.Trash ice selects
Select free of contamination trash ice, be mixed into trash ice in shrimp body so that shrimp temperature keep uniformly with stably.
Preferably, step（3）In, the addition of the antistaling agent is the 2 ~ 4% of frozen water quality.
Preferably, step（3）In, antistaling agent is made up of the component of following mass percent：0.5 ~ 1% grape is glycoxidative
Enzyme, 1 ~ 3% glucose, 10 ~ 15% dithiothreitol (DTT)s, 0.75 ~ 1% nisin, 20 ~ 30% casein sodiums, 3 ~ 5% metals
Sulfoprotein, 20 ~ 30% fumaric acid sodiums, surplus are Rosmarinic acid.The invention provides a kind of antistaling agent, scientific formulation is reasonable, each group
Divide and be easy to get, cost is low, and in antistaling agent of the invention, glucose oxidase plays deoxidation, in the effect of glucose oxidase
Oxygen around lower shrimp body can react removing with glucose, be advantageous to suppress Xia Ti become, glucose can also maintain shrimp body
Color and gloss, be advantageous to improve exterior quality；Dithiothreitol (DTT) can chelate rapidly the metal of tyrosinase activity point position from
Son（Copper core）, reach inhibitory enzyme Cu become purpose；Nisin has very excellent biocidal property, and security is good,
The freshness date of shrimp body can be extended；Rosmarinic acid can suppress the activity of various metabolic enzymes in shrimp body, delay the putrid and deteriorated of shrimp, separately
Outside, Rosmarinic acid also has bacteriostasis, and with nisin coordinated, fungistatic effect greatly improves；Casein sodium
The retentiveness and stability of shrimp body can be improved, moreover it is possible to be securely joined with the components such as the lipid in shrimp, moisture and musculature
Together, compact texture is formed, to reduce moisture in preserving process, nutriment and the loss of flavor substance；Metallothionein
With very strong demetalization ability, especially there is very strong selectivity to copper ion, can be thorough with dithiothreitol (DTT) coordinated
Bottom suppresses the activity of tyrosinase, suppresses blacking positive effect, and metallothionein can reduce the accumulation of oxygen in shrimp body in addition, promote
Bis-phenol is transformed into colourless compound, so as to further suppress Xia Ti become；Fumaric acid sodium plays a part of antioxygen chemoprevention blacking.
The mutual Synergistic of each component in the antistaling agent of the present invention, there is excellent antibacterial, fresh-keeping and anti-blacking to act on, shrimp can be extended
Freshness date and shrimp body quality better, have broad application prospects.
Preferably, step（4）During middle mixing, the mass ratio of extra large shrimping and trash ice is 1:2~3.
Preferably, step（4）In, the block footpath of trash ice is 1 ~ 3cm.
Therefore, the beneficial effect that has of the present invention is：Devise a kind of extra large shrimping sea preservation method, easy to operate, cost
It is low, by precooling and antistaling agent immersion coordinate preservation by low temperature again suppress shrimp Ti become and rot, can effectively extend shrimp
Body sea fresh keeping time and shrimp body quality better, the preservation 7d times, shrimp this Mei of Ji You become.
Embodiment
Below by embodiment, the present invention will be further described.
In the present invention, if not refering in particular to, all percentages are unit of weight, and all devices and raw material can be purchased from market
Or the industry it is conventional, the method in following embodiments, be this area conventional method unless otherwise instructed.
Embodiment 1
（1）Cleaning：After extra large shrimping is cleaned up with seawater, drain away the water.
（2）Precooling：Extra large shrimping after cleaning is placed in 0 DEG C of seawater and soaks 5min, pulls out and drains.
（3）Preserved material：Antistaling agent is dissolved in the frozen water that temperature is 0 DEG C and obtains fresh-keeping solution, the addition of antistaling agent is frozen water
The 2% of quality, antistaling agent are made up of the component of following mass percent：0.5% glucose oxidase, 1% glucose, 10% 2 sulphur Soviet Union
Sugar alcohol, 0.75% nisin, 20% casein sodium, 3% metallothionein, 20% fumaric acid sodium, surplus are Rosmarinic acid,
Extra large shrimping after precooling is put into pick up after immersion 2min in fresh-keeping solution and drained.
（4）Gai Bing：After the trash ice that bottom half spreads that thickness is 3cm, then by step（3）In extra large shrimping pressed with trash ice
Mass ratio 1:2 are well mixed and are laid on trash ice, and finally spreading the trash ice that thickness is 10cm in top layer carries out cold storing and fresh-keeping,
The block footpath of trash ice is 1cm.
Embodiment 2
（1）Cleaning：After extra large shrimping is cleaned up with seawater, drain away the water.
（2）Precooling：Extra large shrimping after cleaning is placed in 2 DEG C of seawater and soaks 10min, pulls out and drains.
（3）Preserved material：Antistaling agent is dissolved in the frozen water that temperature is 2 DEG C and obtains fresh-keeping solution, the addition of antistaling agent is frozen water
The 4% of quality, antistaling agent are made up of the component of following mass percent：1% glucose oxidase, 3% glucose, 15% 2 sulphur threose
Alcohol, 1% nisin, 30% casein sodium, 5% metallothionein, 30% fumaric acid sodium, surplus are Rosmarinic acid, will be pre-
Extra large shrimping after cold is put into pick up after immersion 5min in fresh-keeping solution and drained.
（4）Gai Bing：After the trash ice that bottom half spreads that thickness is 5cm, then by step（3）In extra large shrimping pressed with trash ice
Mass ratio 1:3 are well mixed and are laid on trash ice, and finally spreading the trash ice that thickness is 15cm in top layer carries out cold storing and fresh-keeping,
The block footpath of trash ice is 3cm.
Embodiment 3
（1）Cleaning：After extra large shrimping is cleaned up with seawater, drain away the water.
（2）Precooling：Extra large shrimping after cleaning is placed in 1 DEG C of seawater and soaks 7min, pulls out and drains.
（3）Preserved material：Antistaling agent is dissolved in the frozen water that temperature is 1 DEG C and obtains fresh-keeping solution, the addition of antistaling agent is frozen water
The 3% of quality, antistaling agent are made up of the component of following mass percent：0.7% glucose oxidase, 2% glucose, 12% 2 sulphur Soviet Union
Sugar alcohol, 0.8% nisin, 25% casein sodium, 4% metallothionein, 25% fumaric acid sodium, surplus are Rosmarinic acid,
Extra large shrimping after precooling is put into pick up after immersion 3min in fresh-keeping solution and drained.
（4）Gai Bing：After the trash ice that bottom half spreads that thickness is 4cm, then by step（3）In extra large shrimping pressed with trash ice
Mass ratio 1:2.5 are well mixed and are laid on trash ice, and finally spreading the trash ice that thickness is 12cm in top layer carries out cold storing and fresh-keeping i.e.
Can, the block footpath of trash ice is 2cm.
Using the present invention method to extra large shrimping carry out it is fresh-keeping, preservation 7d time shrimp body this Mei of Ji You become, shrimp body
Color and luster is good with elasticity, and without de- head, smell is normal, and in 25mg/100g or so, illustrating the method for the present invention can have VBN
Effect extends shrimp body sea fresh keeping time, and shrimp body quality better, for improving the commodity value of extra large shrimping and the life of operation on the sea
It is significant to produce benefit, is adapted to large-scale promotion application.
Embodiment described above is a kind of preferable scheme of the present invention, not the present invention is made any formal
Limitation, there are other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (3)
1. a kind of extra large shrimping sea preservation method, it is characterised in that comprise the following steps：
（1）Cleaning：After extra large shrimping is cleaned up with seawater, drain away the water；
（2）Precooling：Extra large shrimping after cleaning is placed in 5 ~ 10min of immersion in 0 ~ 2 DEG C of seawater, pulls out and drains；
（3）Preserved material：Antistaling agent is dissolved in the frozen water that temperature is 0 ~ 2 DEG C and obtains fresh-keeping solution, the extra large shrimping after precooling is put into guarantor
Pick up and drain after 2 ~ 5min of immersion in fresh solution；The addition of the antistaling agent is the 2 ~ 4% of frozen water quality；Antistaling agent is by following
The component composition of mass percent：0.5 ~ 1% glucose oxidase, 1 ~ 3% glucose, 10 ~ 15% dithiothreitol (DTT)s, 0.75 ~ 1% breast
Acid streptococci element, 20 ~ 30% casein sodiums, 3 ~ 5% metallothioneins, 20 ~ 30% fumaric acid sodiums, surplus is Rosmarinic acid；
（4）Gai Bing：After the trash ice that bottom half spreads that thickness is 3 ~ 5cm, then by step（3）In extra large shrimping mixed with trash ice
It is laid on after uniformly on trash ice, finally spreading the trash ice that thickness is 10 ~ 15cm in top layer carries out cold storing and fresh-keeping.
A kind of 2. extra large shrimping sea preservation method according to claim 1, it is characterised in that step（4）During middle mixing, sea
The mass ratio of shrimping and trash ice is 1:2~3.
A kind of 3. extra large shrimping sea preservation method according to claim 1, it is characterised in that step（4）In, the block of trash ice
Footpath is 1 ~ 3cm.
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| CN107647241A (en) * | 2017-09-21 | 2018-02-02 | 广西吉朋投资有限公司 | Catch the freeze preservation method of big prawn in a kind of sea |
| CN109393203B (en) * | 2018-11-02 | 2022-03-15 | 浙江省海洋水产研究所 | Preparation method of high-nutrition dried euphausia superba bait |
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| CN101011179A (en) * | 2007-01-26 | 2007-08-08 | 福建师范大学 | Composite antistaling agent for prawn |
| CN101904543A (en) * | 2010-08-06 | 2010-12-08 | 中国水产科学研究院南海水产研究所 | Controlled-atmosphere ice-temperature fresh-preservation method for seawater shrimps |
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| CN101011179A (en) * | 2007-01-26 | 2007-08-08 | 福建师范大学 | Composite antistaling agent for prawn |
| CN101904543A (en) * | 2010-08-06 | 2010-12-08 | 中国水产科学研究院南海水产研究所 | Controlled-atmosphere ice-temperature fresh-preservation method for seawater shrimps |
| CN102389151A (en) * | 2011-11-09 | 2012-03-28 | 上海海洋大学 | Preparation method of biological preservative for Penaeus vannamei |
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