14 results about "Pearl oyster" patented technology

This invention discloses an anti-inflammatory peptide derived from pearl oysters and its applications, relating to the field of bioactive peptide technology. The amino acid sequence of this anti-inflammatory peptide is TAMY. The anti-inflammatory peptide derived from pearl oysters provided by this invention can regulate the release of cellular inflammatory mediators, reduce the levels of NO and pro-inflammatory cytokines (such as TNF-α, IL-6, and IL-1β), and simultaneously promote the secretion of anti-inflammatory cytokines (such as IL-10), exhibiting excellent anti-inflammatory activity and suitable for use in functional foods, cosmetics, or pharmaceutical ingredients.

The invention provides a fresh water benthic shellfish grading seedling raising system and method, and relates to the technical field of shellfish seedling raising, the fresh water benthic shellfish grading seedling raising system comprises a plurality of stages of seedling raising units, and each stage of seedling raising unit comprises a seedling raising device, a water circulation device and a nutrient solution input device; the water circulation device is communicated with the nutrient solution input device; the nutrient solution input device is communicated with the seedling culture device; the seedling raising device in the upstream seedling raising unit is communicated with the water circulation device in the downstream seedling raising unit, and liquid discharged by the seedling raising device in the upstream seedling raising unit can enter the water circulation device in the downstream seedling raising unit. By means of the system, classified cultivation of the young mussels is achieved, each stage of the young mussels are provided with a nutrient solution input device, the young mussels are cultivated according to the development characteristics and growth requirements of the young pearl mussels and the nutrient ratios of different growth stages, the growth uniformity and cultivation quality of the young mussels and the unit yield of the young mussels are improved, water recycling is achieved, and the cost is reduced. And the resource utilization rate is improved.

The invention relates to the technical field of marine resource development and application, in particular to a seawater pearl oyster extract and application thereof. The seawater pearl oyster extract comprises at least one of a mantle extract, a shell meat extract and a mucus extract of seawater pearl oysters, is rich in active ingredients, and has excellent anti-oxidation, anti-inflammatory and anti-aging effects.

The present invention relates to an antioxidant peptide derived from pearl oyster and its application. The sequence of the antioxidant peptide derived from pearl oyster is NSVAA (ASN-SER-VAL-ALA-ALA). The molecular weight of this antioxidant peptide is 460.2281 Da. Through research, it is found that this antioxidant peptide has good antioxidant activity and protective effect on cell oxidative damage, can be used to prepare antioxidants and cell oxidative damage protectants, and further used to prepare cosmetics, drugs, etc.

The preparation method comprises the following steps: extracting an intershell fluid active substance, extracting extracellular small vesicles as an active substance target, using hyriopsis cumingii pallium for conventional pearl mussel breeding, and preparing the bioactive preparation for skin injury repair from the raw material, so as to obtain the bioactive preparation for skin injury repair. The method comprises the following steps: collecting liquid in a gap between a pearl culture clam shell and an outer mantle, separating and extracting vesicles from the liquid through ultracentrifugation, taking freshwater pearl shell culture by-products as a sustainable source of bioactive substances, grinding the bioactive substances contained in the freshwater pearl shell culture by-products, optimizing components through molecular composition, and preparing the freshwater pearl shell culture by-products. A preparation with a stable bioactive substance structure for repairing skin injury radiated by ultraviolet rays is obtained. The extracellular small vesicles are extracted from pearl shells, the main components of the preparation are biological sources, the safety is high, the absorbability of a nanoscale molecular structure is good, an innovative solution is provided for skin repair, and high value-added conversion of pearl shells is achieved.

The invention provides a visual detection and self-adaptive cleaning method for pearl shell fouling, and relates to the technical field of industrial visual intelligence. According to the method, a sound-deformation correlation stripping process model calibrated by initial mechanical characteristics and dynamically corrected by real-time acoustic characteristics is constructed; energy pre-reduction and path pre-planning are executed in a linkage mode based on the prediction, and energy is actively reduced before stripping is completed, so that redundant energy consumption is reduced, and a high-value base material is protected to the maximum extent; secondly, by planning in advance and moving to the next target, the non-working time of task switching is shortened, and the overall operation efficiency is improved; and through a built-in intelligent fault-tolerant mechanism based on quantitative evaluation, the stability and reliability of the system in a complex industrial environment are enhanced.

The invention discloses an efficient preparation method of marine pearl oyster larvae. Through the technical links of gamete maturity evaluation, gonad mucus removal, ovum maturation promotion and activation, sperm motility excitation, excessive sperm fertilization and the like, the hatching rate of 90% or above is obtained, and therefore the purpose of efficient larva preparation is achieved. The method is different from the traditional method of dissecting mixed sperms and eggs for filtering, placing the sperms and eggs in a hatching container for settling for 1 hour, then pouring out supernate and directly scattering the sperms and eggs settled to the bottom into a pool for hatching, the solidification cognition of traditional marine pearl oyster breeding is subverted, the defects of low hatching rate, poor stability and the like of the traditional method are overcome, a large number of high-quality larvae are obtained, and the breeding efficiency is improved. And a technical guarantee is provided for high-efficiency production of offspring seeds, heterosexual pairing breeding and creation of excellent strains in the future. The method has the advantages of simplicity and convenience in operation, high repetition rate, high practicability and the like.

The utility model relates to the technical field of aquaculture, in particular to a pearl shellfish culture cage convenient for observing and recording the growth state, which comprises a floating platform floating on the sea surface, a tray sinking into the sea and a cage bin for loading pearl shellfish, the floating platform comprises anchor releasing devices for preventing the floating platform from drifting away, rope releasing devices for controlling the height of the tray and a floating arm for increasing the bearing capacity of the floating platform, the anchor releasing devices are symmetrically installed on the two sides of the floating platform, the rope releasing devices are symmetrically installed on the two sides of the floating platform, the space connecting lines of the two anchor releasing devices and the space connecting lines of the two rope releasing devices are perpendicular to each other, and the tray is connected with the rope releasing devices and located below the floating platform. The cage bin is installed in the center of the upper surface of the tray. According to the utility model, the rope releasing device and the tray are used for quickly pulling the cage bin so as to observe the breeding condition in time, the anchor releasing device is used for positioning the floating platform, the cage is prevented from being drifted away, meanwhile, the breeding environment is convenient to replace, the height of the cage bin is convenient to adjust, and the optimal sea layer is selected for breeding according to seasonal temperature.

The invention provides an active polypeptide and application thereof in culture of tegillarca granosa, and after amino acid optimization, the provided active polypeptide has a remarkable inhibition effect on common microorganisms such as vibrio and the like in aquaculture. The active polypeptide is further prepared into microcapsules with the particle size suitable for filter feeding of juvenile tegillarca granosa, and the microcapsules are fed to the tegillarca granosa, so that microbial diseases occurring in tegillarca granosa breeding are effectively reduced. The amino acid sequence of the polypeptide is SEQ ID NO: 2. The active polypeptide obtained by screening comes from pearl oyster, the amino acid sequence of the provided active polypeptide is optimized, and the active polypeptide has good antibacterial activity on vibrio harveyi. After high expression of the active polypeptide, the active polypeptide is prepared into the microcapsule with the particle size suitable for filter feeding of juvenile shellfish of tegillarca granosa, the growth of the tegillarca granosa is promoted, and diseases caused by vibrio harveyi are reduced.

The present invention discloses a cell flake treatment agent and a treatment method thereof for improving the quality of freshwater pearl cultivation, and relates to the field of aquaculture technology. The cell flake treatment agent is prepared with a phosphate buffered saline solution as the base solution, and the functional components include a double antibiotic solution and a plurality of growth factors; after preparing the freshwater pearl oyster cell flakes, the cell flakes are soaked in the treatment agent of the present invention for 3-5 minutes, and then the nucleus is inserted into the pearls. Using the treatment agent and treatment method of the present invention to produce freshwater pearl oyster pearls can overcome the problem of poor monoclonal antibody antibacterial effect, effectively inhibit postoperative infection, and promote wound healing; overcome the technical difficulty of slow pearl sac formation rate, accelerate pearl sac formation and improve pearl quality. The product and method of the present invention are suitable for preoperative treatment of cell flakes in freshwater pearl oyster nucleus insertion surgery, and have the characteristics of low cost, high stability and good effect.

The present invention discloses a method for cultivating zebra pearls, comprising the following steps: first, directing the cultivation of Hyriopsis cumingii with different inner shell colors to prepare cell flakes that secrete nacre of a specific color; then, determining the bead nucleus size parameters according to the pearl oyster specifications, shaping a pearl sac prefabricated mold for producing zebra pearls, the mold being provided with grooves, the size and number of which are set according to the mold, and the cell flakes of different colors can be arranged according to a predetermined pattern; then, inserting the pearl sac prefabricated mold into the mantle of the pearl oyster, and prefabricating a pearl sac that can cultivate zebra pearls in 4-5 months; removing the pearl sac prefabricated mold, implanting the bead nucleus, and cultivating to obtain zebra pearls. The zebra pearls cultivated by the method of the present invention enrich the pearl tones and significantly improve the market competitiveness of pearls. The present invention not only reduces the difficulty and time cost of operation, but also can scientifically cultivate high-quality zebra pearls, thereby improving the economic value of the product.

The invention provides a composition for reducing pearl shell fouling organisms and a preparation method and application thereof, and belongs to the technical field of mariculture. The antifouling composition disclosed by the invention is prepared from the following raw materials in parts by mass: 15 to 25 parts of pseudoalteromonas leavening, 8 to 15 parts of macleaya cordata total alkali, 5 to 10 parts of acorus calamus essential oil and 10 to 20 parts of carboxymethyl chitosan. Through compounding of the pseudoalteromonas leavening, the macleaya cordata total alkali, the acorus calamus essential oil and the carboxymethyl chitosan, a remarkable synergistic anti-fouling effect is achieved, the synergistic coefficient Q is larger than or equal to 1.25, and the anti-fouling effect is far better than the sum of the single use effects of all the components; broad-spectrum anti-fouling of common fouling organisms for pearl shell culture such as barnacles, ciona glabra, coelpipe worms and bryozoon is achieved, the anti-fouling rate is larger than or equal to 93%, and the actual anti-fouling requirement for pearl shell culture is met.

1. Name of the design product: Breast pump (F5117 Pearl Oyster II). 2. Use of the design product: For milk suction. 3. Design key points of the design product: The combination of shape and pattern. 4. Picture or photo that best shows the design key points: Perspective view.

The present invention provides a method for producing DHMBA, an antioxidant, from the flesh of bivalves of the superfamily Oenothera, such as pearl oysters or oysters, by heating or pressurizing the flesh of the pearl oysters or oysters, in a larger quantity and at a higher concentration than other bivalves. [Solution] The present invention is characterized in that 3,5-dihydroxy-4-methoxybenzyl alcohol can be produced in a larger quantity from the heat-treated bivalve meat of the Bivalviidae superfamily than from other bivalves by placing the meat of a bivalve belonging to the Bivalviidae superfamily into an extract and heating the extract.