CN105211261A - A kind of tuna antistaling agent and using method thereof - Google Patents
A kind of tuna antistaling agent and using method thereof Download PDFInfo
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- CN105211261A CN105211261A CN201510532248.7A CN201510532248A CN105211261A CN 105211261 A CN105211261 A CN 105211261A CN 201510532248 A CN201510532248 A CN 201510532248A CN 105211261 A CN105211261 A CN 105211261A
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Abstract
The invention discloses a kind of tuna antistaling agent and using method thereof, described tuna antistaling agent is made up of the component of following weight portion: marine low temperature lysozyme 5 ~ 10 parts, nisin 3 ~ 8 parts, modified alta-mud 15 ~ 20 parts, 300 parts, water.Tuna antistaling agent of the present invention with marine low temperature lysozyme and nisin for main active, take modified alta-mud as absorption carrier, utilize bentonitic adhesive property, to the modified alta-mud film of marine low temperature lysozyme and nisin be adsorbed with on tuna surface, effectively reduce the loss of active component in antistaling agent, extend the preservation time of tuna, simultaneously, due to bentonitic water retention property, can prevent tuna from causing the loss of nutrient in cell because of dehydration, ensure that the freshness of tuna.
Description
Technical field
The present invention relates to technical field of aquatic product preservation, particularly relate to a kind of tuna antistaling agent and using method thereof.
Background technology
Tuna--like Fishes is the general name of several genus fish in Osteichthyes Perciformes mackerel section fish with cuirass, also known as yaito tuna, tuna fish, the height migration fishes in one way of life waters at the middle and upper levels in ocean, mainly respectively in the Pacific Ocean, the Atlantic Ocean, the torrid zone of the Indian Ocean, the wide waters in subtropical zone and temperate zone.Common Tuna--like Fishes has 5 genus, 17 kinds.Mainly comprise longfinned tunny, Atlantic tuna, yellowfin tuna, big-eye tunas, bluefin tuna, stripped tuna etc.Tuna is Fresh & Tender in Texture, and protein content is very high, and biological value is up to 90, and amino acid coordinates superior; Be rich in DHA, EPA etc. and there is bioactive height polyunsaturated fatty acid, brain development can be promoted, effectively prevent cardiovascular and cerebrovascular disease; Meanwhile, methionine, taurine, minerals and vitamins rich content are the green non-pollution food that international NNFA is recommended.
Tuna belongs to abyssal fishes, and generally from capturing market demand about 30 days, therefore, on ship, preservation technique is concerning this high level economic fish of tuna, seems particularly important.At present, the most widely used preservation mode of seafood freshing is iced storage, iced storage can slow down the breeding of fish internal microorganism, the activity of fish body endoenzyme is allowed to be suppressed, thus long-time preservation fish, but iced storage can cause fish meat protein sex change, the shortcoming such as juice loss and nutritional labeling reduction when thawing.Except the preservation by low temperature that iced storage is representative, the preservation technique being applied to marine product at present also has fresh chemically, irradiated targets, biological preservation etc., wherein uses chemical preservative with low cost, is easy to promote, and good refreshing effect.In recent years, along with the raising of people's environmental consciousness and the development of preservation technique, the security of fresh chemically causes the worry of people gradually.Bio-preservative is adopted to carry out fresh-keepingly can reducing the harmful effect of chemical synthesis antistaling agent to human health to marine product, and effectively prevent the resistance to the action of a drug of pathogen, being considered to the most promising developing direction of food additives research field, is the important channel of the efficient marine product biological antiseptic preservative of development of new.
Chinese patent publication No. CN102860568A, date of publication discloses a kind of aquatic product fresh keeping agent on January 9th, 2013, this antistaling agent is formed by the water-soluble configuration of weight components: calgon, sodium phosphate trimer, sodium pyrophosphate three mass ratio are 10:2:1, and three's gross weight accounts for 50 ~ 57% of antistaling agent gross weight, sodium alginate 15 ~ 20%, ascorbic acid 5 ~ 10%, glycerine 2 ~ 10%.This antistaling agent improves the water-retaining property of aquatic products using phosphate as water-loss reducer, reduce the loss of aquatic products moisture, but the phosphate content in this antistaling agent has 50% at least, excessive phosphate can make aquatic products produce offending metal astringent taste on the one hand, and makes musculature become coarse, affects local flavor and the mouthfeel of aquatic products, on the other hand, consumer is edible too much adds phosphatic aquatic products, can cause blood clotting, damage human body.
Summary of the invention
The object of the invention is to overcome the safety issue that existing tuna uses chemical preservative existence, a kind of tuna antistaling agent is provided, this antistaling agent with marine low temperature lysozyme and nisin for main active, take modified alta-mud as absorption carrier, utilize bentonitic adhesive property, to the modified alta-mud film of marine low temperature lysozyme and nisin be adsorbed with on tuna surface, effectively reduce the loss of active component in antistaling agent, extend the preservation time of tuna, simultaneously, due to bentonitic water retention property, can prevent tuna from causing the loss of nutrient in cell because of dehydration, ensure that the freshness of tuna.
Present invention also offers a kind of using method of tuna antistaling agent.
Concrete technical scheme of the present invention is: a kind of tuna antistaling agent, is made up of the component of following weight portion: marine low temperature lysozyme 5 ~ 10 parts, nisin 3 ~ 8 parts, modified alta-mud 15 ~ 20 parts, 300 parts, water.
Marine low temperature lysozyme is the novel lysozyme of one be separated to from the metabolite of ocean extremophile microorganism, have and compose wide feature addicted to low temperature, anti-oxidant and bacteriolyze, the fish being relatively applicable to deepfreeze are fresh-keeping, nisin is a kind of peptide material that streptococcus lactis produces, most of gram-positive bacterium can be suppressed, and have strong inhibitory action to the spore of bacillus.The present invention utilizes bentonitic absorption property and adhesive property, the modified alta-mud of marine low temperature lysozyme and nisin will be adsorbed with, film is on tuna surface, effectively reduce the loss of antistaling agent active component, extend the preservation time, meanwhile, in conjunction with the water retention property that bentonite is good, make fish body keep activated state, thus ensure that the freshness of tuna.In addition due to bentonite adsorption performance, effectively can also adsorb fishy smell, reduce the fishlike smell of tuna.
As preferably, described modified alta-mud is prepared by following steps:
(1) by after the pulverizing of bentonite original soil, oven dry, grinding, 250 ~ 300 mesh sieves are crossed;
(2) hydrochloric acid solution being 13 ~ 18% by the bentonite after sieving and mass fraction mixes 1:3 ~ 4 in mass ratio, is placed in microwave applicator and heats;
(3) after heating, filtered by mixture, filter cake is after freeze drying, and activation 30 ~ 45min, obtains modified alta-mud.
The present invention adopts HCl treatment bentonite, some the non-adsorbent impure minerals in bentonite can be decomposed, improve the content of tool adsorptivity montmorillonite.Meanwhile, the highly active H of minor radius
+exchangeable cation K between easy replacement montmorillonite crystal layer
+, Na
+, Ca
+, Mg
2+plasma, thus change surface potential, increase surface area, thus add bentonitic absorption property.
As preferably, described activation temperature is 300 ~ 350 DEG C.High-temperature roasting can make bentonite lose the adsorbed water partly self contained, and the air of bentonite inside is overflowed, thus forms many tiny spaces in bentonite inside, increases specific area, strengthens bentonitic adsorption capacity.
As preferably, described microwave applicator power is 800 ~ 900W, heat time 6 ~ 8min.Adopt heating using microwave, can the heat time be shortened, economize energy.
A using method for tuna antistaling agent, comprises the following steps:
(1) after fresh tuna being cleaned up, be soaked in described tuna antistaling agent, then take out and drain, and reclaim the tuna antistaling agent flowed down;
(2) by the tuna vacuum packaging after draining, 3 ~ 5 DEG C of refrigerations are placed in.
Be immersed in antistaling agent by fresh tuna, due to bentonitic adhesive property, the active ingredient in antistaling agent can effectively not easily run off on tuna surface by film.Meanwhile, refrigerated storage temperature is 5 ~ 10 DEG C, and at this temperature, marine low temperature lysozyme also has higher activity.
As preferably, described soak time is 4 ~ 6min.Soak time affects the adsorbance of antistaling agent, and the time is too short, and the antistaling agent of absorption very little, affects fresh-keeping effect.
As preferably, described tuna antistaling agent and tuna in mass ratio 1:2 ~ 3 use.The active ingredient of tuna antistaling agent affects fresh-keeping effect, and tuna is too many, and very little, fresh-keeping effect is just poor for tuna antistaling agent.
The invention has the beneficial effects as follows: (1) the present invention take modified alta-mud as absorption carrier, utilize bentonitic adhesive property, to the modified alta-mud film of marine low temperature lysozyme and nisin be adsorbed with on tuna surface, effectively reduce the loss of active component in antistaling agent, extend the preservation time of tuna; (2) due to the water retention property that bentonite is good, can prevent tuna from causing the loss of nutrient in cell because of dehydration, ensure that the freshness of tuna; (3) tuna antistaling agent provided by the invention, not containing chemical composition, safety and environmental protection.
Detailed description of the invention
Below by specific embodiment, technical scheme of the present invention is described further.
The marine low temperature lysozyme molecular weight that the present invention adopts is 39KD, and provided by Inst of Huanghai Sea Marine Products, Chinese Academy of Aquatic Product Science, nisin resembles biological Co., Ltd by China silver and provides.
If not other raw materials of the present invention and equipment refer in particular to, all can to buy from market or this area is conventional, the method in embodiment, if no special instructions, is the conventional method of this area.
Embodiment 1
A kind of tuna antistaling agent, is made up of the component of following weight portion: marine low temperature lysozyme 5 parts, nisin 3 parts, modified alta-mud 15 parts, 300 parts, water.
Wherein, modified alta-mud is prepared by following steps:
(1) by after the pulverizing of bentonite original soil, oven dry, grinding, 250 mesh sieves are crossed;
(2) by the bentonite after sieving and mass fraction be 13% hydrochloric acid solution in mass ratio 1:3 mix, be placed in microwave applicator and heat 6min, the power of microwave applicator is 800W;
(3) after heating, filtered by mixture, filter cake, after freeze drying, at 300 DEG C of activation 30min, obtains modified alta-mud.
The using method of the tuna antistaling agent configured by said components, comprises the following steps:
(1) after being cleaned up by fresh tuna, be soaked in 4min in tuna antistaling agent, then take out and drain, and reclaim the tuna antistaling agent flowed down, wherein tuna antistaling agent and tuna mass ratio are 1:2;
(2) by the tuna vacuum packaging after draining, 5 DEG C of refrigerations are placed in.
Embodiment 2
A kind of tuna antistaling agent, is made up of the component of following weight portion: marine low temperature lysozyme 8 parts, nisin 5 parts, modified alta-mud 18 parts, 300 parts, water.
Wherein, modified alta-mud is prepared by following steps:
(1) by after the pulverizing of bentonite original soil, oven dry, grinding, 300 mesh sieves are crossed;
(2) by the bentonite after sieving and mass fraction be 15% hydrochloric acid solution in mass ratio 1:3.5 mix, be placed in microwave applicator and heat 7min, the power of microwave applicator is 850W;
(3) after heating, filtered by mixture, filter cake, after freeze drying, at 320 DEG C of activation 40min, obtains modified alta-mud.
The using method of the tuna antistaling agent configured by said components, comprises the following steps:
(1) after being cleaned up by fresh tuna, be soaked in 5min in tuna antistaling agent, then take out and drain, and reclaim the tuna antistaling agent flowed down, wherein tuna antistaling agent and tuna mass ratio are 1:2.5;
(2) by the tuna vacuum packaging after draining, 8 DEG C of refrigerations are placed in.
Embodiment 3
A kind of tuna antistaling agent, is made up of the component of following weight portion: marine low temperature lysozyme 10 parts, nisin 8 parts, modified alta-mud 20 parts, 300 parts, water.
Wherein, modified alta-mud is prepared by following steps:
(1) by after the pulverizing of bentonite original soil, oven dry, grinding, 300 mesh sieves are crossed;
(2) by the bentonite after sieving and mass fraction be 18% hydrochloric acid solution in mass ratio 1:4 mix, be placed in microwave applicator and heat 8min, the power of microwave applicator is 900W;
(3) after heating, filtered by mixture, filter cake, after freeze drying, at 350 DEG C of activation 45min, obtains modified alta-mud.
The using method of the tuna antistaling agent configured by said components, comprises the following steps:
(1) after being cleaned up by fresh tuna, be soaked in 6min in tuna antistaling agent, then take out and drain, and reclaim the tuna antistaling agent flowed down, wherein tuna antistaling agent and tuna mass ratio are 1:3;
(2) by the tuna vacuum packaging after draining, 10 DEG C of refrigerations are placed in.
By the tuna in embodiment 1, embodiment 2, embodiment 3, in refrigeration after 30 days, take out and carry out sensory evaluation, evaluation criterion is as shown in table 1, and the evaluation result obtained is as shown in table 2.
As can be seen from Table 2, tuna antistaling agent of the present invention is adopted to carry out fresh-keeping to tuna, at least 30 days can be preserved 5 ~ 10 DEG C of refrigerations, illustrate that the present invention has good fresh-keeping, water conservation and antiseptic property, under the prerequisite that can not be destroyed in guarantee fund marlin color and luster, vividness and form, greatly extend the fresh keeping time of tuna.
Table 1 sensory evaluation standard
Table 2 refrigerates the Analyses Methods for Sensory Evaluation Results that 30 days respectively organize tuna afterwards
Claims (7)
1. a tuna antistaling agent, is characterized in that, is made up of the component of following weight portion: marine low temperature lysozyme 5 ~ 10 parts, nisin 3 ~ 8 parts, modified alta-mud 15 ~ 20 parts, 300 parts, water.
2. a kind of tuna antistaling agent according to claim 1, it is characterized in that, described modified alta-mud is prepared by following steps:
(1) by after the pulverizing of bentonite original soil, oven dry, grinding, 250 ~ 300 mesh sieves are crossed;
(2) hydrochloric acid solution being 13 ~ 18% by the bentonite after sieving and mass fraction mixes 1:3 ~ 4 in mass ratio, is placed in microwave applicator and heats;
(3) after heating, filtered by mixture, filter cake is after freeze drying, and activation 30 ~ 45min, obtains modified alta-mud.
3. a kind of tuna antistaling agent according to claim 2, is characterized in that, described activation temperature is 300 ~ 350 DEG C.
4. a kind of tuna antistaling agent according to claim 2, is characterized in that, described microwave applicator power is 800 ~ 900W, heat time 6 ~ 8min.
5. a using method for the tuna antistaling agent as described in any one of Claims 1 to 4, is characterized in that, comprise the following steps:
(1) after fresh tuna being cleaned up, be soaked in described tuna antistaling agent, then take out and drain, and reclaim the tuna antistaling agent flowed down;
(2) by the tuna vacuum packaging after draining, 5 ~ 10 DEG C of refrigerations are placed in.
6. the using method of a kind of tuna antistaling agent according to claim 5, is characterized in that, described soak time is 4 ~ 6min.
7. the using method of a kind of tuna antistaling agent according to claim 5, is characterized in that, described tuna antistaling agent and tuna in mass ratio 1:2 ~ 3 use.
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Cited By (3)
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| CN109479948A (en) * | 2018-12-10 | 2019-03-19 | 湖北楚玉莱信克食品科技有限公司 | A kind of single-freeze fillets of ictalurus punctatus processing method for keeping fresh |
| CN109845807A (en) * | 2019-02-21 | 2019-06-07 | 福州宏东食品有限公司 | A kind of processing method of fish |
| CN118077749A (en) * | 2024-04-03 | 2024-05-28 | 三亚热带水产研究院 | Preservation and storage method for tuna |
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Cited By (3)
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| CN118077749A (en) * | 2024-04-03 | 2024-05-28 | 三亚热带水产研究院 | Preservation and storage method for tuna |
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| CN105211261B (en) | 2019-05-31 |
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