191 results about "Eggshell membrane" patented technology

A method for processing unseparated egg shells is provided. The method includes placing the unseparated egg shells in a fluid tank containing a fluid mixture, applying cavitation to the fluid mixture to thereby assist in separating the egg shell membranes from the egg shells, and recovering the egg shell membranes. Preferably, the fluid mixture is recirculated to thereby provide for continuous processing of unseparated egg shells. The method may further include drying the egg shell membranes to produce dried egg shell membranes which may then be vacuum packaged for storage and/or transport. The dried egg shell membranes may then be subjected to an extraction process for extracting at least one type of polypeptide from the egg shell membranes. Collagen, hyaluronic acid, or amino acids of interest may be extracted from the egg shell membrane and purified for numerous uses.

The present invention relates to anti-inflammatory activity of eggshell membrane, processed eggshell membrane preparations and eggshell membrane isolates. The invention is directed to eggshell membrane compositions exhibiting anti-inflammatory activity as measured by effects on down-regulating pro-inflammatory plasma antigens in mammals that had orally ingested such compositions. This information supports the potential benefits from administration of naturally occurring material found in eggshell membrane, processed eggshell membrane, eggshell membrane isolates and combinations to reduce pain and inflammation associated with arthritis and other inflammatory conditions.

Compositions and methods of preparing compositions containing hyaluronic acid derived from eggshell membrane are disclosed. The compositions can contain essentially pure hyaluronic acid or hyaluronic acid in combination with other naturally occurring constituents derived from eggshell membrane. In another aspect, the invention is directed to a method of treating a mammal that will benefit from the administration of hyaluronic acid, which includes administering to the mammal a composition containing hyaluronic acid derived from eggshell membrane.

The process for solubilizing proteinaceous material of the present invention includes subjecting the proteinaceous material to a sufficient amount of a basic solution to obtain a supernatant that has a basic pH and exposing the supernatant to the basic solution for a sufficient length of time and temperature for hydrolysis to occur. The process also includes cooling the mixture of the supernatant and proteinaceous material and optionally acidifying the mixture. This process may also include recovering the solubilized protein from the supernatant for use in various applications. Also provided herein is a composition of solubilized proteins from eggshell membrane obtained using processes of the present invention.

A fiber containing an eggshell membrane component. The fiber is produced by spinning using a solution containing the eggshell membrane component by employing an electrospinning method. A fiber assembly formed from the fiber obtained by employing the electrospinning method imitates a natural eggshell membrane, whereby sufficient air permeability is exhibited. Since the fiber assembly is also excellent in adherence to skin tissue of a human body and stypticity, the fiber assembly may be preferably used as a wound dressing or a cosmetic sheet.

The present invention relates to therapeutic, cosmetic, and nutraceutical applications for eggshell membrane, processed eggshell membrane preparations and eggshell membrane isolates. The invention is directed to treating a mammal that will benefit from the administration of naturally occurring material found in eggshell membrane, processed eggshell membrane, eggshell membrane isolates and combinations thereof by administering to the mammal a composition containing eggshell membranes processed eggshell membrane, eggshell membrane isolates and combinations thereof, alone or in combination with other active ingredients.

The invention discloses a heavy metal biological adsorbent using an eggshell membrane as a matrix and a preparation method thereof. The heavy metal biological adsorbent adopts chitosan as an immobilized carrier and eggshell membrane powder as a basis material, and comprises the following components in part by weight: 10 to 13 parts of the eggshell membrane powder, 20 to 30 parts of the chitosan of which the deacetylation degree is 86.9 percent, and a minute amount of gelatinous substance of a complex which contains sodium and potassium and is formed in the preparation process. The particle size of the biological adsorbent is 2 to 3 millimeters. The method comprises the steps of performing vacuum freeze drying and mechanical disintegration on a fresh eggshell membrane (a fibrous membrane between an eggshell and egg white), and then embedding the eggshell membrane with chitosan glue solution to obtain the biological adsorbent for adsorbing heavy metals. The biological adsorbent can be used for treating waste water containing the heavy metals of nickel, cobalt, cadmium, copper, lead and the like of which the concentration is lower than 100 mg/L, and the adsorption rate achieves 42 to 98 percent.

The invention discloses a hydrotalcite-like compound/eggshell membrane composite film and a preparation method thereof and belongs to the technical field of preparation of composite-function film materials, and the composite film is researched as a chromyl adsorbent. The invention has the technical scheme that the eggshell membrane is used as a substrate and a template, and the hydrotalcite-like compound is fixed to the surface of the eggshell membrane by using an in-situ growth method, thereby obtaining an inorganic-biological composite film with a reticular structure. The invention uses the biological substrate eggshell membrane as the substrate and template for the first time, adopts an in-situ crystallization method to prepare the hydrotalcite-like compound/eggshell membrane inorganic-biological composite film, and makes a preliminary research into the applications of hydrotalcite-like materials in the field of biology. The composite film has favorable adsorbability as a chromyl adsorbent, and especially can carry out adsorption under the acidic conditions of a lower pH value, thereby saving the cost and meeting the requirements of the environment.

The invention discloses a metal oxide composite nano material based on an eggshell membrane template, a preparation method and an application thereof and belongs to the technical field of nano materials. The preparation method of the nano material comprises the following steps: pre-treatment of an eggshell membrane; preparation of a carrier eggshell membrane; preparation of a CuO-ZnO solution; preparation of a CuO-ZnO loaded eggshell membrane; and preparation of the composite nano material. The used raw materials are cheap and easily available, the preparation process is simple and feasible, asample can be obtained by means of a simple calcining method, and the prepared nano material has efficient adsorption performance to organic dyes and has important application value in treatment of dye wastewater.

The invention discloses poultry egg shell-membrane separation equipment comprising a cylinder body for water injection. A membrane outlet is formed in the side wall of the top of a cylinder body. The bottom of the cylinder body is provided with a shell outlet. A stirring device for stirring to separate a shell from a membrane is arranged in the cylinder body. The side wall of the middle part of the cylinder body is provided with an upper water inlet and a lower water inlet which are connected with a pressure water source via pipelines. The pipelines are provided with control valves for controlling the flow of the upper water inlet and the lower water inlet respectively. After being impacted and separated by the pressure water flow of the cylinder body from the upper water inlet and the lower water inlet, the shell-under membrane and the egg shell are distributed at the top and bottom of the cylinder body. The poultry egg shell-membrane separation equipment disclosed by the invention has the advantages of simple technology, low equipment cost and operation cost, quickness in shell-membrane separation, and convenience for large-scale industrial production, and the like.

The invention involves preparation method of three-dimensional network hierarchy photocatalysis materials which crystal phase can be controlled. The method bases on biological template synthesis technology, uses bird eggshell membrane as biological template material, dips the eggshell membrane into titanates prodromal liquid to handling the dip optimization after separating, washing and pretreating the eggshell membrane, then oxygenizes and incandesces it to forming titania nanometer crystal under the action of biological template in original position, then prepares nanometer titania with excellent performance and three-dimensional network hierarchy as photocatalysis material. The prepared photocatalysis material consists of mixing-phase titania crystal grain which grain size is below 20nm, the component percentage of anatase phase and rutile phase can be controlled by adjusting the pH of steeping liquor. The process of the invention is simple, cost is low and the performance of prepared photocatalysis material is stable; it can be used for gas sensor, pressure-active element, nonlinear optical material, solar battery and environmental purification material, it also has good prospect in the electrical, electronic, industrial and civil fields.

The invention discloses a preparation method of water-soluble fluorescent carbon quantum dots based on eggshell membranes and application of the carbon quantum dots in preparation of a nanogold and carbon quantum dot composite nanomaterial. The method particularly comprises the following steps that the eggshell membranes are stripped, cleaned and dried; a certain quantity of the eggshell membranes are dispersed in an alkaline solution, the dispersed solution is transferred into a hydrothermal synthesis kettle, and reacting is conducted under the condition of 150 DEG C to 210 DEG C for 6 h to 18 h; centrifugal dialysis treatment is conducted, a carbon quantum dot solution is obtained, the carbon quantum dot solution is mixed with a chloroauric acid solution, temperature-controlled reacting is conducted for a period of time, and the nanogold and carbon quantum dot composite nanomaterial with good dispersity is obtained. According to the preparation method and application of the water-soluble carbon quantum dots based on the eggshell membranes, the raw materials for synthesizing the carbon quantum dots are low in price and easy to obtain, the method is simple, the product is good in water solubility and can be used as a reducing agent of gold nanoparticles, and usage of an external toxic reducing agent is avoided. The prepared carbon quantum dots and nanogold and carbon quantum dot composite nanomaterial can be applied in the fields of sensing detection, bioimaging and catalytic conversion.

The invention provides an absorbable anti-adhesion dressing. The absorbable anti-adhesion dressing sequentially comprises a hydrophobic layer, a hydrophilic layer and a protective layer from the sideclose to the skin, wherein the hydrophobic layer is a microsphere-loaded polycaprolactone/chitosan porous film; the hydrophilic layer is made of one or more selected from the group consisting of hyaluronic acid, gelatin, sodium alginate and keratin; and the protective layer is prepared by compounding an egg shell film and a modified polyurethane film. The invention also provides a preparation method for the absorbable anti-adhesion dressing. The absorbable anti-adhesion dressing prepared by using the preparation method provided by the invention can be degraded and absorbed, does not to be frequently replaced, maintains a moist environment beneficial to wound repair, has excellent mechanical properties and high antibacterial effect, can promote one-way absorption of a medicine, is improvedin utilization rate, does not generate the problem of wound adhesion when being replaced, and prevents secondary injury.

The invention discloses a rapid detection method and a system for chicken embryo stress reaction on illumination. The rapid detection method for the chicken embryo stress reaction on illumination comprises constructing a cylinder experiment area, keeping the environment of the cylinder experiment area and the environment of an incubator to be consistent, maintaining constant temperature and constant moisture, installing a light source in the middle inside the lightproof cylinder experiment area, putting chicken embryos into the cylinder experiment area, installing a voice sensor in a chicken embryo air chamber small hole, pasting the voice sensor on an eggshell film inside the small hole, converting signals received by the voice sensor and obtaining heartbeat signals of chicken embryos, changing an illumination condition of the chicken embryos by adjusting the light source intensity and the wave length and the chicken embryo height position and comparing after detection for a plurality of times and obtaining the chicken embryo stress reaction on the illumination. The rapid detection method for the chicken embryo stress reaction on illumination is mainly used for monitoring the chicken embryo stress reaction on the illumination, is simple in design and reasonable in structure, guarantees the temperature and the moisture to be consistent during a hatching process, changing the wave length and the light intensity of the LED (Light Emitting Diode) light source, obtaining the change of chicken embryo heartbeat signals under different illumination conditions and deepening a rasorial stress influence research.

A modified fiber fabric obtainable by polymerizing a component (X) which is a water-soluble eggshell membrane powder, a component (A) which is a bifunctional monomer represented by the following formula (1), a component (B) which is a monomer containing any one of a hydroxyl group, carboxyl group, amino group, sulfonic acid group, and phosphoric acid group, and a component (C) which is a monomer containing at least one aziridine group, or a water-soluble polymer containing a polycarbodiimide group, polyethyleneimine group, or oxazoline group, on a fiber fabric,

wherein R represents any one of

and —C_nH_2n— (n is an integer of 1 to 6); Z is a hydrogen atom or a methyl group; a and b are integers where “a+b” is 0 to 50; x and y are integers where “x+y” is 0 to 30; and “a+b+x+y” is 10 or more.

The invention discloses a preparation method of an egg shell membrane polypeptide, and belongs to the field of food. A combined technology of extrusion swelling, treatment with dilute alkali and enzymolysis is adopted, namely, an egg shell membrane is firstly subjected to extrusion swelling and dilute alkali pretreatment, and then is subjected to enzymolysis, so that the enzymolysis efficiency isimproved, toxic reagents such as ionic liquid and an organic solvent are avoided, thus, the shell membrane polypeptide with oxidation resistance is prepared and contains abundant mucopolysaccharide, the yield of the mucopolysaccharide reaches 23.58 mg/g of the egg shell membrane, and total nitrogen recovery is 78.09%. The product egg shell membrane polypeptide has good antioxidant activity, and the molecular weight is mainly 1000 Da or below, and accounts for 89.54%.

The invention relates to an extraction technology of a cosmetic raw material, particularly an extraction technology of hyaluronic acid. The extraction technology disclosed herein has the advantages of easy obtainment of raw materials and high extraction efficiency. The extraction technology disclosed herein comprises the following steps: sieving an eggshell membrane, immersing with distilled water for 5-6h, adding 1-3% of NaCl, stirring for 10-15min at 90-95 DEG C, cooling to room temperature, adding 4000-9000U of protease, conducting enzymolysis for 3-8 h at 30-80 DEG C; centrifuging, filtering, and collecting a supernatant; adjusting the pH value of the system to 5.0-10.0, adding two times of 95% ethanol and conducting alcohol precipitation for 12h; centrifuging, and collecting precipitates; dehydrating, and drying to obtain a finished product.

The invention discloses a method of preparing a biodegradable super absorbent resin by using an eggshell membrane. The super absorbent resin is prepared by employing an ultrasonic irradiation polymerization technique to make a reaction in a water phase system. The super absorbent resin is prepared particularly by the following steps: 1. modifying the inner membrane of the egg; 2. polymerizing the super absorbent resin at room temperature. The method is characterized by realization of absorbent resin polymerization at room temperature, no need of external heating modes such as water bath and air, no limitation of a radiation source (e.g., Co60, etc.), and can realize the absorbent resin polymerization at room temperature only by modifying the eggshell membrane, a cross-linking agent and a single-component initiator. The method shortens reaction time, simplifies preparation technology, needs no nitrogen protection and prepares a product with strong water absorbing capacity. The prepared product can be used for medical supplies, personal hygiene items, agricultural water retention release agents and the like. The method of the invention has the advantages of uniform structure of prepared absorbent resin, high monomer conversion, simple preparation technology and low cost.

The present invention addresses the problem of providing an eggshell membrane solubilization method that is capable of solving the problems associated with carrying out treatment using acids and alkalis, or problems associated with the processing methods of the conventional art that use proteases; in other words, an eggshell membrane solubilization method that is capable of solving at least one of the following problems: (1) the need for pretreatment such as pulverization, sonication or boiling; (2) the need for prolonged treatment; and (3) a low decomposition rate (approximately 20%). Eggshell membranes are efficiently solubilized by using a protease in combination with a reducing agent.