CN109619154B - Method for separating ring teeth of sucking disc of Peru squid - Google Patents

Method for separating ring teeth of sucking disc of Peru squid Download PDF

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CN109619154B
CN109619154B CN201910057796.7A CN201910057796A CN109619154B CN 109619154 B CN109619154 B CN 109619154B CN 201910057796 A CN201910057796 A CN 201910057796A CN 109619154 B CN109619154 B CN 109619154B
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squid
ring teeth
tentacles
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squid tentacles
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CN109619154A (en
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陈小娥
方旭波
郭健
池海波
叶开
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Zhejiang Ocean University ZJOU
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    • A22BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22CPROCESSING MEAT, POULTRY, OR FISH
    • A22C25/00Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
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Abstract

The invention relates to a method for separating ring teeth of a Peru squid sucker, which comprises the following steps: (1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use; (2) pre-separation: placing the pretreated squid tentacles on a heating plate, then placing an extrusion plate on the squid tentacles, heating for 2-4 s at 60-80 ℃, and extruding the squid tentacles by using the extrusion plate during the heating process; (3) and (3) rapid cooling: putting the pre-separated squid tentacles into a fluidized ice solution for cooling; (4) rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles. Compared with the traditional manual tooth removing mode, the method greatly improves the tooth removing rate (the tooth removing rate can reach about 95 percent), completely adopts a physical mode to remove the teeth, has low tooth removing cost, is environment-friendly and pollution-free, and can effectively ensure the quality of the squid tentacle products after tooth removing.

Description

Method for separating ring teeth of sucking disc of Peru squid
Technical Field
The invention relates to the field of marine product processing, in particular to a method for separating ring teeth of a suction cup of Peru squid.
Background
Squid, also called soft fish and squid, is an animal of the open eye sub-order of the general-order duct squid of the decapetala of the coleoptera subclass of the cephalopoda class, which is conical in body, pale in body color, with light brown spots, large in head, with 10 touch feet in front, and with triangular skeins at the tail end, and often swims in groups in the ocean with the depth of about 20 meters. The squids are mainly distributed in tropical zone and shallow sea in temperate zone, wherein Peru squids (Dosidicus gigas) are common names of American large red squids and are one of the most individual and most abundant predatory squid types discovered so far. The squid sucker is a processing byproduct of Peru squid tentacles, and can only be sold at low price as a raw material of fish meal due to the lack of an effective utilization way, because the squid sucker contains ring teeth, the meshing degree of the sucker and the ring teeth is higher, and the separation difficulty is high, so that the Peru squid tentacles are effectively processed and utilized.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for separating Peru squid sucker ring teeth, which can effectively separate the ring teeth in a sucker.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for separating ring teeth of a Peru squid sucker is characterized by comprising the following steps:
(1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use;
(2) pre-separation: placing the pretreated squid tentacles on a heating plate, then placing an extrusion plate on the squid tentacles, heating for 2-4 s at 60-80 ℃, and extruding the squid tentacles by using the extrusion plate during the heating process;
(3) and (3) rapid cooling: putting the pre-separated squid tentacles into a fluidized ice solution for cooling;
(4) rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles.
In order to enable the ring teeth and the sucker to be better pre-separated, the extrusion pressure of the extrusion plate in the step (2) is 0.5-1 MPa.
And (3) performing certain adhesion action with the extrusion plate to enable the ring teeth to be softened better, so that the extrusion plate can perform certain stretching action between the ring teeth and the suction disc while extruding the ring teeth, wherein the heating temperature in the step (2) is 80 ℃, and the heating time is 3 s. The heating temperature and the heating time are set, so that the ring teeth and the sucker can be prevented from being irreversibly denatured in the heating process.
In order to further avoid the influence of the denaturation of the ring teeth and the sucker in the heating process on the quality of the squid tentacle product and also better avoid the re-adhesion of the ring teeth and the sucker after heating and softening, the cooling temperature in the step (3) is 1-4 ℃, and the cooling time is 3-5 min.
In order to further avoid the influence of heating on the squid tentacle protein components and avoid the re-adhesion of the ring teeth and the sucker, trehalose is dissolved in the fluidized ice solution obtained in the step (3), and at least one of polydextrose, maltitol, sodium lactate and sorbitol is dissolved, wherein the concentration of the trehalose is 5-15 g/L.
Further, preferably, trehalose and sodium lactate are dissolved in the fluidized ice solution in the step (3), and the concentration ratio of trehalose to sodium lactate is 2.5-1: 1. The trehalose has high glass transition temperature, comprises small free volume, limited molecular mobility and the capability of resisting phase separation and crystallization in storage, can be combined with salt-soluble proteins in squid tissues to form a good network structure, and plays a role in stabilizing cell membranes and protein structures. The sodium lactate is a moisture retention agent and an antioxidant, can better protect the protein component of the squid tentacles and ensure the quality of squid tentacles products when being combined with trehalose, and simultaneously is an acidity regulator, so that the ring teeth can be prevented from being softened in an peracid environment and re-adhered to a sucker.
In order to ensure that the processed ring teeth can be smoothly separated from the sucking disc on the basis of ensuring the complete appearance of the squid tentacles product, the rolling speed in the step (4) is 5-10 r/min, and the rolling pressure is 0.5-1.0 kg/cm2
Compared with the prior art, the invention has the advantages that: according to the invention, the ring teeth and the sucker are subjected to pre-separation in a heating and extruding mode, then the ring teeth subjected to pre-separation are quickly hardened in a fluidized ice quick cooling mode, the proteins of the sucker are kept cooled but not hardened, and finally the ring teeth and the sucker are completely separated in a rolling mode.
Compared with the traditional manual tooth removing mode, the method greatly improves the tooth removing rate (the tooth removing rate can reach about 95 percent), completely adopts a physical mode to remove the teeth, has low tooth removing cost, is environment-friendly and pollution-free, and can effectively ensure the quality of the squid tentacle products after tooth removing.
Drawings
FIG. 1 is an infrared spectroscopic analysis spectrum of Peru squid sucker ring teeth, chitin and bovine serum albumin in example 1 of the present invention;
FIG. 2 is a photograph showing the appearance of the ring teeth of the sucking disc of the squid in the embodiment 1 of the present invention;
FIG. 3 is an electron microscope of the tooth row section of the suction cup ring of the squid in the embodiment 1 of the present invention;
FIG. 4 is an electron microscope of a cross section of a base ring of the ring teeth of the squid sucker in example 1 of the present invention;
FIG. 5 is an electron microscope photograph of the tooth surface of the sucking disk of the squid in the embodiment 1 of the present invention;
FIG. 6 is a differential scanning calorimetry analysis curve of the sucking disc ring teeth of the squid in the embodiment 1 of the present invention;
fig. 7 shows the mass loss rate of the sucker ring teeth of squid under different pH values in example 1 of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example 1: peru squid sucker ring tooth research
Raw materials: frozen Peru squid tentacles, purchased from Zhoushan Haili ocean fishery, Inc.
Reagent: standard bovine serum albumin, Sigma, usa; chitin, shanghai bio-engineering ltd; the rest of the hydrochloric acid and sodium hydroxide reagents are analytically pure, national pharmaceutical group chemical reagent limited.
Instruments and equipment: nicolet 6700 infrared spectrometer, Thermo Nicolet corporation, usa; model HH-4 electric heating constant temperature water bath, changzhou guohua electrical appliances ltd; LGJ-10 Freeze dryer, Beijing Songyuan Huaxing scientific and technological development Co., Ltd; GZX-9240MBE electric heating blowing dry box, Shanghai Boxun industries, Inc.; femina desktop scanning microscope, shanghai ltd, instruments of synnaology; DFT-250 high speed universal pulverizer, Shanghai ChudingDinalyzer Co., Ltd; model 200F 3 differential thermal scanner, dendric, germany.
1.1 determination of basic ingredients of sucking disc ring teeth of Peru squid
The water content is measured according to a direct drying method in the national standard GB 5009.3-2016; determining the protein content according to a Kjeldahl method in the national standard GB 5009.5-2016; the ash content is measured according to the high-temperature burning method in the national standard GB 5009.4-2016.
The measurement results are shown in table 1, and it can be seen from table 1 that the sucking disc ring teeth of the Peru squid mainly consist of protein, and the protein content of the sucking disc ring teeth reaches 86.75%.
TABLE 1 basic ingredients of sucking disc ring teeth of Peru squid
Figure BDA0001953106670000031
1.2 Peru squid sucker ring tooth infrared spectrum analysis
Reference is made to the methods of Yangqi et al (Yangqi, Yankee pigeon, etc., Peru squid skin gelatin-chitosan composite membrane performance and structure characterization [ J]Nuclear agro-chemical, 2017,31(7): 1349-: crushing the ring teeth of the squid sucker, taking ring tooth powder, further grinding the ring tooth powder in an agate mortar, uniformly grinding and mixing the ring tooth powder and dry KBr powder in the agate mortar according to the mass ratio of about 1:100, putting the uniformly ground powder in a mould, uniformly pressurizing to obtain a thin and transparent sample wafer to be tested, and performing scanning test by using an infrared spectrometer, wherein the spectrum range is as follows: 4000-400 cm-1. Bovine Serum Albumin (BSA) and chitin (chitin) samples were also ground into powder and subjected to infrared spectroscopic analysis.
Infrared spectrum analysis is carried out on the Peru squid sucker ring teeth, and the result is shown in figure 1 by comparing with the infrared spectrum of bovine serum albumin and chitin. As can be seen from FIG. 1, the suction cup ring profile of Peru squid is similar to bovine serum albumin, and has characteristic absorption peaks (3421, 1644, 1544 and 1116 cm) of protein substances-1) Wherein the length of the groove is 3421cm-1The nearby strong absorption peak is stretching vibration peak of protein O-H, 2918cm-1The nearby absorption peak is C-H stretching vibration peak, 1640cm-1The absorption peak in the vicinity is a stretching vibration peak of C ═ O, 1544cm-1And 1457cm-1Nearby absorption peaks are respectively an N-H in-plane bending vibration peak and a C-N stretching vibration peak in an amide 2 band, 1230cm-1And 1116.58cm-1The nearby absorption peaks are respectively an N-H in-plane bending vibration peak and a C-N stretching vibration peak in an amide 3 band.
Compared with the infrared spectrum of the chitin, the characteristic peaks (2934.65 and 2871.61 cm) of the chitin do not appear in the Peru squid sucker ring tooth sample-1) This indicates that the suction cup ring teeth of Peru squid does not contain chitin componentThe squid beak is different from another hard tissue beak of the squid, and the content of chitin in the squid beak reaches 15-20 percent and is one of the main components.
1.3 Observation of sucker ring tooth microstructure of Peru squid
Cutting the section of the sucker ring teeth of Peru squid, soaking the Peru squid in deionized water overnight to remove residual salt, drying, and observing by a scanning electron microscope according to the method of Wangshaoqing and the like (Wangshaoqing, Caochong and Caobanson scanning electron microscope method for observing the shape of the ultrastructure of the eggshell [ J ]. food science, 2013,34(13): 110-.
The appearance and the scanning electron microscope observation result of the Peru squid sucker ring teeth are shown in figures 2-5. As can be seen from fig. 2, the sucking disc of Peru squid is ring-shaped and composed of a basal ring and a series of dentitions, and the color is yellow brown. As can be seen from fig. 3 and 4, the microstructure of the sucking disc ring teeth of the squid in peru is in a parallel tubular structure, the structure can directly affect the mechanical performance of the ring teeth, the sucking disc ring teeth are distributed at the positions of the squid tentacles and used for capturing prey and are generally required to bear large mechanical load, and the parallel tubular structure of the sucking disc ring teeth can enhance the bending rigidity of the ring teeth, so that the sucking disc ring teeth can bear large bending force or shearing force.
As shown in FIG. 5, the Peru squid sucker ring teeth also have a porous structure, and the porosity of the Peru squid sucker ring teeth is usually as high as 80-90%, so that the Peru squid sucker ring teeth have the characteristics of low relative density, light weight and the like compared with a continuous medium material; meanwhile, the pores of the Peru squid sucker ring teeth are distributed in a gradient manner, so that the Peru squid sucker ring teeth have the characteristic of gradient hardness (namely, the hardness is highest at the edges of the teeth, and then the teeth gradually become soft towards the inner parts of the ring tooth substrates). In addition, the porous structure can also enable the Peru squid sucker ring teeth to form an anti-cracking mechanism between the forming media of the Peru squid sucker ring teeth so as to enhance the stability of the structure of the Peru squid sucker ring teeth.
1.4 Peru squid sucker ring tooth thermal stability analysis
Differential Scanning Calorimetry (DSC) refers to the method of Gaobicheng et al (Gaobicheng, Zhengshang Ju. thermal analysis of feather keratin and processed products [ J ]. Mediterranean university of transportation (agricultural science edition), 1994(3): 182-: uniformly grinding the sucking disc ring teeth of the Peru squid in a mortar, taking a proper amount of sucking disc ring teeth powder, heating from 30 ℃ to 300 ℃ by using DSC, wherein the heating rate is 10 ℃/min, and nitrogen is used as protective gas.
The graph detected by the differential calorimetric scanner will show the temperature of the sample at the point of maximum migration. From the graph of the thermal denaturation of the sucking disc ring teeth of Peru squid (FIG. 6) it was found that: at the temperature of 30-250 ℃, under the protection of nitrogen flow, the ring teeth of the squid sucker have an absorption peak at about 69.4 ℃, which is caused by the physical change of moisture evaporation in the ring teeth, and meanwhile, the ring teeth of the sucker detect that the slope of a DSC curve is obviously reduced at about 36 ℃, which also indicates that the moisture in the ring teeth is evaporated, and the ring teeth of the squid sucker have an endothermic peak at about 118.6 ℃, which indicates that the ring teeth of the squid sucker have no state change before 118.6 ℃ and have stable properties, and then the ring teeth of the squid sucker are changed into a molten state from a solid; a very clear endothermic transition peak appears after 218.4 ℃, which indicates that the beta-sheet of the protein secondary structure in the ring teeth of the squid sucker is destroyed by heating at the temperature.
1.5 Peru squid ring tooth acid and alkali resistance test
The acid and alkali resistance test refers to the method of summer peak, etc. (summer peak, Wanfen, Ranmon, poplar seed, Liudebao. the preparation and performance of biodegradable cellulose/polylactic acid composite film [ J]Science and engineering of polymer materials, 2014,30(1): 149-: with HCl, NaOH and NaHCO3Preparing solutions with pH values of 2, 4, 6, 7, 8, 10 and 12 respectively, drying a sample in vacuum at 60 ℃ until the weight is constant, weighing (M), putting the sample into the prepared solutions respectively, soaking for 2 hours, taking out the sample, washing the sample with deionized water, drying until the weight is constant, weighing (M), and carrying out experiments for 3 times. The mass loss rate was calculated using the following formula:
Figure BDA0001953106670000051
the acid and alkali resistance of the material largely determines the durability of the material. The major components of the sucking disc ring teeth of the squid in Peru are protein, and hydrolysis is easy to occur under the acid-base condition, so the acid-base resistance test of the sucking disc ring teeth of the squid is carried out in the experiment, and the result is shown in fig. 7. As can be seen from FIG. 7, the squid sucker ring teeth have higher mass loss under the acidic condition, and the mass loss rate of the squid sucker ring teeth increases along with the reduction of the pH value; and under the alkaline condition, the stability of the squid sucker ring teeth is relatively good. Although there is also some loss of mass, the rate of mass loss is smaller compared to acidic conditions and increases with increasing pH. The results show that the Peru squid sucker ring teeth have certain acid and alkali resistance in weak acid and weak alkali, but have larger mass loss when placed in a strong acid and strong alkali environment for a long time.
Based on the embodiment 1, the invention designs the method for detaching the annular teeth of the tentacle of Peru squid, specifically as shown in the embodiments 2 to 4, and the frozen squid tentacles in the embodiments 2 to 4 are also purchased from oceanic fishery Limited company of Haishan sea.
Example 2:
a method for separating ring teeth of a Peru squid sucker comprises the following steps:
(1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use.
(2) Pre-separation: placing the pretreated squid tentacles on a heating plate, placing an extrusion plate on the squid tentacles, heating at 60 deg.C for 4s, and extruding the squid tentacles with the extrusion plate during heating. As is clear from example 1, since the main component of the ring teeth is protein, which is denatured by heat, the heating temperature was set at 60 ℃ and the heating time was set at 4 seconds in this example. The ring teeth are softened after being heated and have certain adhesion with the extrusion plate, so that the extrusion plate can have certain stretching effect between the ring teeth and the sucker while extruding the ring teeth, and the sucker is separated from the ring teeth.
(3) And (3) rapid cooling: and (3) putting the pre-separated squid into a fluidized ice solution for cooling. In order to further avoid the ring teeth and the sucking disc from modifying in the heating process to influence the quality of the squid tentacle product, and simultaneously, the ring teeth and the sucking disc after heating and softening can be better prevented from being re-adhered, the cooling temperature in the embodiment is 1 ℃, and the cooling time is 3 min. In addition, in order to further avoid the influence of heating on the components of the squid tentacle protein and avoid the re-adhesion of the ring teeth and the sucker, trehalose and sodium lactate are dissolved in the fluidized ice solution, wherein the concentration of the trehalose is 5g/L, and the concentration of the sodium lactate is 5 g/L.
(4) Rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles. The rolling speed in this example was 5r/min and the rolling pressure was 0.5kg/cm2The tooth-disengaging rate can reach 95.2%. In this example, rolling was performed by means of a roller, and the rolling methods of examples 3, 4 and 5 were the same.
Example 3:
a method for separating ring teeth of a Peru squid sucker comprises the following steps:
(1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use.
(2) Pre-separation: placing the pretreated squid tentacles on a heating plate, placing an extrusion plate on the squid tentacles, heating at 80 deg.C for 3s, and extruding the squid tentacles with the extrusion plate during heating. As is clear from example 1, since the main component of the ring teeth is protein, which is denatured by heat, the heating temperature was set at 80 ℃ and the heating time was set at 2 seconds in this example. The ring teeth are softened after being heated and have certain adhesion with the extrusion plate, so that the extrusion plate can have certain stretching effect between the ring teeth and the sucker while extruding the ring teeth, and the sucker is separated from the ring teeth.
(3) And (3) rapid cooling: and (3) putting the pre-separated squid into a fluidized ice solution for cooling. In order to further avoid the ring teeth and the sucking disc from modifying in the heating process to influence the quality of the squid tentacle product, and simultaneously, the ring teeth and the sucking disc after heating and softening can be better prevented from being re-adhered, the cooling temperature in the embodiment is 2 ℃, and the cooling time is 4 min. In addition, in order to further avoid the influence of heating on the components of the squid tentacle protein and avoid the re-adhesion of the ring teeth and the sucker, trehalose and sodium lactate are dissolved in the fluidized ice solution, wherein the concentration of the trehalose is 10g/L, and the concentration of the sodium lactate is 5 g/L.
(4) Rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles. Rolling speed in this exampleThe degree is 7r/min, and the rolling pressure is 0.7kg/cm2The tooth-disengaging rate can reach 97.0 percent.
Example 4:
a method for separating ring teeth of a Peru squid sucker comprises the following steps:
(1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use.
(2) Pre-separation: placing the pretreated squid tentacles on a heating plate, placing an extrusion plate on the squid tentacles, heating at 70 deg.C for 3s, and extruding the squid tentacles with the extrusion plate during heating. As is clear from example 1, since the main component of the ring teeth is protein, which is denatured by heat, the heating temperature was set at 70 ℃ and the heating time was set at 3 seconds in this example. The ring teeth are softened after being heated and have certain adhesion with the extrusion plate, so that the extrusion plate can have certain stretching effect between the ring teeth and the sucker while extruding the ring teeth, and the sucker is separated from the ring teeth.
(3) And (3) rapid cooling: and (3) putting the pre-separated squid into a fluidized ice solution for cooling. In order to further avoid the ring teeth and the sucking disc from modifying in the heating process to influence the quality of the squid tentacle product, and simultaneously, the ring teeth and the sucking disc after heating and softening can be better prevented from being re-adhered, the cooling temperature in the embodiment is 4 ℃, and the cooling time is 5 min. In addition, in order to further avoid the influence of heating on the components of the squid tentacle protein and avoid the re-adhesion of the ring teeth and the sucker, trehalose and sodium lactate are dissolved in the fluidized ice solution, wherein the concentration of the trehalose is 15g/L, and the concentration of the sodium lactate is 6 g/L.
(4) Rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles. The rolling speed in this example was 10r/min and the rolling pressure was 1.0kg/cm2The tooth-disengaging rate can reach 96.5%.
Example 5:
a method for separating ring teeth of a Peru squid sucker comprises the following steps:
(1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use.
(2) Pre-separation: placing the pretreated squid tentacles on a heating plate, placing an extrusion plate on the squid tentacles, heating at 65 ℃ for 2s, and extruding the squid tentacles by using the extrusion plate during heating. As is clear from example 1, since the main component of the ring teeth is protein, which is denatured by heat, the heating temperature was set to 65 ℃ and the heating time was set to 3 seconds in this example. The ring teeth are softened after being heated and have certain adhesion with the extrusion plate, so that the extrusion plate can have certain stretching effect between the ring teeth and the sucker while extruding the ring teeth, and the sucker is separated from the ring teeth.
(3) And (3) rapid cooling: and (3) putting the pre-separated squid into a fluidized ice solution for cooling. In order to further avoid the ring teeth and the sucking disc from modifying in the heating process to influence the quality of the squid tentacle product, and simultaneously, the ring teeth and the sucking disc after heating and softening can be better prevented from being re-adhered, the cooling temperature in the embodiment is 2 ℃, and the cooling time is 4 min. In addition, in order to further avoid the influence of heating on the components of the squid tentacle protein and avoid the re-adhesion of the ring teeth and the sucker, trehalose and sodium lactate are dissolved in the fluidized ice solution, wherein the concentration of the trehalose is 12g/L, and the concentration of the sodium lactate is 6 g/L.
(4) Rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles. The rolling speed in this example was 5r/min and the rolling pressure was 0.80kg/cm2The tooth-disengaging rate can reach 95.1%.

Claims (7)

1. A method for separating ring teeth of a Peru squid sucker is characterized by comprising the following steps:
(1) pretreatment: unfreezing frozen squid tentacles, cleaning and draining for later use;
(2) pre-separation: placing the pretreated squid tentacles on a heating plate, then placing an extrusion plate on the squid tentacles, heating for 2-4 s at 60-80 ℃, and extruding the squid tentacles by using the extrusion plate during the heating process;
(3) and (3) rapid cooling: putting the pre-separated squid tentacles into a fluidized ice solution for cooling;
(4) rolling and gear removing: and taking out the cooled squid tentacles from the water, and rolling the squid tentacles to separate the ring teeth from the squid tentacles.
2. The releasing method according to claim 1, wherein the pressing pressure of the pressing plate in the step (2) is 0.5 to 1.0 MPa.
3. The detachment method according to claim 1 or 2, wherein the heating temperature in the step (2) is 80 ℃ and the heating time is 3 seconds.
4. The detachment method according to claim 1, wherein the cooling temperature in the step (3) is 1 to 4 ℃ and the cooling time is 3 to 5 min.
5. The separation method according to claim 1 or 4, wherein trehalose is dissolved in the fluidized ice solution of the step (3), and at least one of polydextrose, maltitol, sodium lactate, and sorbitol is also dissolved, and the trehalose concentration is 5 to 15 g/L.
6. The method according to claim 5, wherein trehalose and sodium lactate are dissolved in the fluidized ice solution of step (3) at a concentration ratio of 2.5 to 1: 1.
7. The releasing method according to claim 1, wherein the rolling speed in the step (4) is 5 to 10r/min and the rolling pressure is 0.5 to 1.0kg/cm2
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CN108208118A (en) * 2018-01-16 2018-06-29 舟山昌国海洋科技有限公司 A kind of squid chopping devices
CN108208119A (en) * 2018-01-16 2018-06-29 舟山昌国海洋科技有限公司 Squid deodorization device

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