272 results about "Tuna" patented technology

Palatability enhancing compositions for pet foods, and pet foods with increased palatability, are provided. In some embodiments, the compositions and pet foods contain tea, such as green tea. In some embodiments, the compositions and pet foods contain brewer's yeast, liver hydrolysate, phosphate, and green tea. Shrimp meal and Tuna meal can also be utilized in these embodiments. In some embodiments, the compositions and pet foods comprise an ingredient having at least one of theanine; glutamine; tea; 1,5 octadien-3 one; 1,5-octadien-3-ol; and Camellia sinensis plant. In one example, green tea is used in a pet food palatability enhancing system at 0.1-25%, 1-15%, or 2-9% by weight of the system, and at 0.025-0.5% or 0.01 to 1.0% by weight of the pet food.

A method of treating fish to maintain freshness after freezing and thawing. A whole fish is chilled and cut into four loins, each with two flat sides forming a corner. The loins are chilled and either sliced cross sectionally to form steaks or sliced parallel to one of the flat sides to form sashimi slabs. If sashimi slabs are formed, the slabs are then preferably dipped in a warm flavor enhancing solution. The steaks or slabs are then sealed in non-permeable bags, preferably in a "puzzle pack" configuration that maximizes density and minimizes interstices. The bag with the steaks or sashimi slabs is then submerged in a brine solution. A treatment gas is then injected into the bag. After a treatment time, the gas is removed and the bag is vacuum packed. The bags are then frozen for shipping and storage. When needed, the bags can be thawed in a brine solution.

The invention discloses a method for preparing antihypertensive peptides through enzymolysis of ground meat proteins of a tuna. The method comprises the steps of: (1) regarding the ground meat of the tuna as the raw material, mixing and homogenizing the raw material and a buffer solution according to a weight/volume ratio of 1 g: 3-5 ml, and then adjusting the pH value to 9.5-10 to obtain a mixed solution; (2) heating the mixed solution to 55-60 DEG C for pre-heating, and adding alcalase according to 1.0%-1.5% of the raw material for enzymolysis at an enzymolysis temperature of 55-60 DEG C for 4-6 h; and (3) performing enzyme deactivation on the obtained enzymolysis product to obtain an enzymolysis solution and then enabling the enzymolysis solution to sequentially suffer from ultrafiltration, desalination, freeze drying and chromatography to obtain the antihypertensive peptides. The method for preparing the antihypertensive peptides through the enzymolysis of the ground meat proteins of the tuna, disclosed by the invention, has the advantages of abundant source of the raw material, low price, simple preparation process, relatively strong activity of the prepared antihypertensive peptides; compared with a chemosynthetic ACE (Angiotensin Converting Enzyme) inhibitor, the ACEP (ACE Inhibitive Bioactive Peptide) prepared through enzymolysis of the ground meat of the tuna has the advantages of being safe and nontoxic, specific in antihypertensive efficacy, easy to digest and absorb and the like.

The invention discloses a tuna fresh keeping method to solve a problem that present tuna fresh keeping methods reduce the quality of tuna. The method mainly comprises the following steps: 1, preprocessing tuna bodies; 2, immersing tuna in a composite fresh keeping agent; 3, carrying out surface air drying; and 4, packaging, and refrigerating. The composite fresh keeping agent comprises, by mass, 5-10% of mycose, 0.03-0.05% of nisin, 0.05-0.1% of konjak mannan, 0.1-0.3% of sodium phytate, 2-3% of calcium chloride, 0.2-0.5% of chitosan, 3-5% of disodium EDTA, 0.3-0.5% of sodium erythorbate, 0.3-0.5% of sodium citrate, and the balance of a propolis water extraction liquid. The fresh keeping method has the advantages of easy implementation, high efficiency, low cost, good fresh keeping effect, great prolongation of the fresh keeping time of tuna, maintenance of the original eating quality of tuna, good safety, facilitation of improvement of the economic benefit of ships, and suitableness for being popularized and applied.

Methods and apparatus for ablating a target tissue are discussed. Such methods and apparatus include those that simplify tissue ablation. For example, a tissue ablation device having an actuator, such as a trigger mechanism, coupled to a power source and an electrode is discussed. A single step of engaging the actuator causes the electrode to be introduced into the target tissue and causes energy to be delivered from the power supply to the tissue via the electrode. By way of additional example, a tissue ablation device having an actuator coupled to a fluid source and an electrode is discussed. A single step of engaging the actuator causes conductive fluid to flow from the fluid source to the target tissue location and causes the electrode to be introduced to the target tissue location. The fluid source may be a conductive fluid, such as saline, which may increase the efficiency of ablation. Various other configurations and methods that simplify tissue ablation are also discussed.

A system that will result in less physical effort in the lowering or raising of a marine folding tower, spotting station, driving station, fishing tower, or tuna tower. The system will be installed on a fishing boat, pleasure boat, or other marine vessel. The system comprises at least one gas spring, or hydraulic or electric ram or shock absorber of any size or style that attaches to both the upper frame assembly and lower frame assembly of the tower or other station.

The present invention discloses a method for preparing tuna skin gelatin, belonging to the technical field of fish resources utilization. According to the invention, skin tuna skin is subjected to pretreatment, degreasing, acid and alkali treatment, and then is subjected to gelatin extraction, and deodorization by filtering through activated carbon, and ion-exchange purification to remove heavy metal ions, and then concentration under vacuum and spray-drying to obtain finished products of tuna skin gelatin with quality meeting the edible gelatin standards specified in national standards. The tuna skin gelatin of the invention can be further processed for use and can be used in medicine, food and cosmetic industries, achieving the purposes of turning waste into treasure, and comprehensively and efficiently developing high value-added tuna by-products. The method of the invention has advantages of: 1, a scientific and reasonable process is adopted, the temperature in the reaction process is low and easy to control, which saves energy and controls the molecular weight of the skin gelatin in a relatively narrow range, and the quality of obtained gelatin is high; and 2, activated carbon is used for filtering for deodorization, improving the taste of the product.

The invention discloses a liver injury and repair type active peptide prepared from tuna offal. The active peptide is shown as an amino acid sequence of Met-Thr-His-Asp-Asp-Val-Asp-Glu. The active peptide has the advantages that the collagen peptide with the liver injury and repair functions is extracted from an aquatic product processing byproduct, namely tuna offal simply and easily at a low production cost, so that the aquatic product processing byproduct value can be increased remarkably, waste is avoided and environment protection is achieved, and preliminary basis can be provided for related functional food.

The invention provides a real-time fish stock monitoring and fish amount estimating system based on a wireless communication network, which mainly comprises an underwater acoustic transducer, a fish finder processor and a micro-processing unit, wherein the micro-processing unit detects echo reflection signals of a fish stock and extracts an average value of the rear echo reflection strength within a period of time in a specific water depth range; and fish stock mapping information in an echo reflection mapping graph formed by echo signals is extracted, and remote transmission and display of fish stock information are realized. The system can also be used for predicating the fishing yield besides displaying fish finder images in real time. The system provided by the invention can be applied to a plurality of fields such as real-time monitoring for fixed net fishery and the sea net cage breeding industry, observation of artificial reef fish-gathering effects, fish stock detection under an artificial fish-gathering device in tuna seine purse fishery and the like, and has very important significance for improving the production efficiency of marine fishery.

The invention relates to the technical field of aquatic product processing, and specifically relates to a tuna preservation method. The method specifically comprises the following steps of: firstly, removing internal organs and gills of the catched fresh tuna, and washing the surface and the inside of the tuna with cleaning fluid; then, soaking the tuna in a lysozyme-containing soak solution, of which pH is 5.5-6.5, for 20-30min; and finally, storing the soaked tuna in binary ice, wherein the binary ice is prepared by dissolving the following constituents by weight percent in water: 0.5-2% of foaming agent, 0.5-3% of organic acid, 6-15% of sodium chloride, 0.1-0.3% of surface active agent and 1-3% of vitamin E1. The method provided by the invention can effectively inhibit the reproduction of various bacteria in flesh of fish for long time, the flesh quality and the appearance of the preserved tuna change less, the residual quantity of harmful chemical substances is low, thus, the method can preserve the tuna for long time on the basis of guaranteeing the flesh quality of the tuna.

The invention relates to a ginkgo biloba extract and fish oil soft capsule. Memory deterioration is one of body function debilitating symptoms of elders, the memory deterioration commonly occurs in youngsters and adults with the increasingly fierce social competition, and chemotherapy has a by-effect. The ginkgo biloba extract and fish oil soft capsule content is prepared by tuna oil, ginkgo biloba extract, natural vitamin E, beewax and soybean oil according to a proportion of parts by weight of (432-528):(135-165):(0.63-0.77):(40.95-50.05):(21.42-26.18). The invention further relates to a preparation of ginkgo biloba extract and fish oil soft capsule. The ginkgo biloba extract and fish oil soft capsule provided by the invention can be used for effectively improving the intracerebral DHA content, optimizing the brain tissue ingredients, improving the brain blood oxygen content and perfecting the memory, thereby being suitable for people of all agents and particularly suitable for elders with memory deterioration and brain function decline.

The invention relates to a preparation method of a selenium-chelated collagen peptide with tuna bone collagen serving as a source. The preparation method includes: crushing tuna bones, subjecting the crushed tuna bones to pretreatment prior to enzymolysis and adding selenium-enriched yeast so as to obtain the selenium-chelated collagen peptide. The preparation method is short in preparation cycle, high in yield and product purity and capable of removing bitter fishy smell, provides technical assistance for development of selenium-supplementing health food and drugs and also provides a new thought for high-value application of the tuna bones, and the selenium-chelated collagen peptide is good in taste and beneficial to absorption of human bodies.

The invention relates to the technical field of aquatic product processing, and particularly relates to a method for preparing fish oil by virtue of the leftovers of tuna. The specific scheme disclosed by the invention is as follows: the method comprises the following steps of: removing impurities from the leftovers of tuna and cleaning, and then crushing to obtain a feedstock; then performing primary enzymolysis on the feedstock by virtue of immobilized lipase, then performing secondary enzymolysis, filtering the obtained secondary enzymolysis solution to remove residue, performing centrifugal treatment, and separating to obtain lower-layer emulsion and upper-layer crude fish oil; and demulsifying the lower-layer emulsion, and forming the tuna fish oil with the upper-layer crude fish oil. According to the technical scheme disclosed by the invention, the fish oil is prepared by virtue of the leftovers of tuna; and the fish oil is high in extraction rate, complete in active ingredients and high in content, and the method is low in energy consumption and environment-friendly.

The invention discloses a tuna ground meat polypeptide angiogenesis inhibiting factor as well as a preparation method and an application thereof. The amino acid sequence of the polypeptide angiogenesis inhibiting factor is Trp-Val-Thr-Gly-Ile (WVTGI), and ESI/MS (electrospray ionization/mass spectrometry) detection shows that a molecular ion peak (m/z) is 575.42Da ([M+H]+). The tuna ground meat polypeptide angiogenesis inhibiting factor Trp-Val-Thr-Gly-Ile (WVTGI) can be used for effectively inhibiting angiogenesis of chorioallantoic membrane (CAM) of chicken embryo and multiplication of prostate cancer cell DU-145. The tuna ground meat polypeptide angiogenesis inhibiting factor Trp-Val-Thr-Gly-Ile (WVTGI) can be used for preparing a medicine used for inhibiting angiogenesis and preventing and treating prostate cancer.

The present invention relates to an electric-nose-analysis-based determination method of tuna oil corruption degree in a storage process, according to the determination method, an electric-nose technology is used for research on volatile odor of tuna oil in the storage process, by principal component analysis (PCA) and linear discriminant analysis (LDA), fish oil samples of different storage time can be distinguished, and acid value and peroxide value forecast models can be established by partial least squares (PLS), so that the tuna oil corruption degree in the storage process can be effectively determined. Compared with the prior art, the determination method is simple in operation, short in detection time and high in detection efficiency, is a fast, effective and comprehensive determination of tuna oil quality, can be widely popularized in fish oil quality measurement.

The invention discloses a flavored morchella raw fish which is prepared from the following raw materials in parts by weight: 90-110 parts of frozen tuna, 15-16 parts of lyophilized royal jelly powder, 22-24 parts of grape pulp, 8-9 parts of morchella, 5-7 parts of steamed bun, 9-11 parts of mango juice, 17-18 parts of walnut kernel, 7-8 parts of honey, 0.5-1 part of a mulberry root, 0.4-1 part of penthorum Chinese pursh, 1.8-2 parts of wax gourd seeds, 0.2-0.3 part of sodium glutamate, 0.1-0.3 part of ethyl maltol, 0.1-0.2 part of phosphate, 1-2 parts of lactic acid bacteria, 300mmol/L of CaCl2 solution, refined salt and a proper amount of sugar. The flavored morchella raw fish has the advantages of unique taste, long shelf life and good health effect; the flavored morchella raw fish is unfrozen by a pickling method and is pickled by an injection method; the technology is unique and novel; the value-added space and the extension benefits of the raw fish product are increased; and due to the addition of traditional Chinese medicine components such as mulberry root and penthorum Chinese pursh, walnut kernel is endowed with the health effects of moistening the lung for removing phlegm and clearing away heat and toxic materials.

The invention relates to the technical field of aquatic product processing, and in particular relates to a stewing process of tuna. The method comprises the specific steps of: first, cleaning the tuna with a cleaning fluid, rinsing the tuna with clean water and draining for standby; then subjecting the cleaned tuna to ultrasonic immersion treatment in a soaking liquid for 20-30 min, wherein the soaking liquid is an aqueous solution comprising the following components by weight: 5-12% of sodium chloride, 1-3% of sodium bicarbonate, 0.3-0.5% of sodium succinate, 0.6-1.3% of monosodium glutamate, 0.4-1% of beta-carotene and the balance of water; and finally stewing the soaked tuna in a stewing liquid for 8-15 min, and then steaming the tuna at 102-105 DEG C for 3-10min. Through the method provided by the invention, the tuna has few nutrient loss, gains good taste, and is easy to absorb and not easy to breed bacteria, so as to facilitate later preservation.

The invention relates to the technical field of aquatic product processing, and discloses a preparation method for dried tuna, which includes: (1) thawing: tunas are taken out of a freezer and thawed; (2) washing and cutting: offal is removed from the tunas, and the fish bodies are then cut into pieces after being washed; (3) preprocessing of the fillets: the fillets are soaked in preprocessing liquid, and after soaking, the fillets are washed and pickled; (4) cooking: the fillets and auxiliary materials are added into water and cooked; (5) dehydration: after the water of the fillets is drained, the fillets are put into a vacuum drier and dehydrated; (6) roasting: sauce is applied on the surfaces of the fillets, tinfoils are then used for wrapping the fillets, and the fillets wrapped by the tinfoils are roasted; (7) rolling: the fillets are rolled; (8) packaging and sterilization: the dried tuna is packaged and sterilized. The taste of the dried tuna prepared by the preparation method is delicious, the loss of nutrients is little, and the shelf life is long.

The invention relates to a comprehensive utilization method of tuna leftovers to solve the problem that existing tuna leftovers cannot be comprehensively utilized. The method comprises the following steps: carrying out enzymolysis on tuna leftovers by virtue of alkaline protease until fish is separated from fine bones; separating out fish bones on the lower layer, wherein upper liquid is hydrolysate; separating out sediments and supernate after centrifuging the hydrolysate, wherein the sediments are protein and hydrolysate thereof; and separating an oil phase from a water phase in the supernate, wherein the oil phase mainly is a tuna fat substance; and the water phase mainly is protein hydrolysate. The separated fish bones, protein, and hydrolysate and fish oil thereof can be respectively applied to production and processing of collagen, gelatin, fish meal and the like, and the economic benefits of fish product processing enterprises are improved.

The invention provides a tuna fishbone meal material, a preparation method and application thereof. The preparation method of the tuna fishbone meal material provided by the invention includes: conducting preliminary crushing on tuna fishbone to obtain a fishbone preliminary material, cooking the fishbone preliminary material at 90-100DEG C and under 1.0-1.1bar for 1-4h to obtain a fishbone initial material; soaking the fishbone initial material in a sodium hydrogen sulfite buffer solution with a mole concentration of 4-7% for 2-4h, then conducting calcinations at 800-1000DEG C for 4-10h to obtain a fishbone material, and then carrying out crushing and sieving treatment to obtain fishbone meal material with different particle size ranges. The invention additionally provides the tuna fishbone meal material prepared by the method. The invention also provides application of the tuna fishbone material as a medical orthopaedic filling material. The tuna fishbone material can be used as an individual bone filling material and dental filling material, and also can be compounded with other materials into widely applied biomedical materials.