6 results about "Agar gel" patented technology

The invention discloses heterogeneous micro-patterned hydrogel and a preparation method and application thereof, and the method comprises the following steps: S1, dissolving agar to obtain an agar solution, and injecting the agar solution into a mold to prepare agar gel; s2, mixing methacrylated gelatin and a photoinitiator to obtain a pre-polymerization solution, and soaking the agar glue in the pre-polymerization solution; s3, covering the soaked agar gel with a mask plate, and illuminating the agar gel, so as to obtain heterogeneous micro-patterned hydrogel; wherein the content of agar in the agar solution is 0.5-5 wt%, and the content of methacrylated gelatin in the pre-polymerization solution is 3-30 wt%. According to the hydrogel provided by the invention, the chemical compositions of the adhesion area and the anti-adhesion area are different, so that the cell adhesion capacities and swelling properties of the two areas are different, and the difference of the swelling properties further enables the adhesion area to form bulges compared with the anti-adhesion area, so that the cooperative regulation and control of the chemical compositions and the physical structure are realized; the cell behavior can be accurately regulated and controlled.

The application provides a method for detecting plant growth hormone-like substances in sludge stabilization products, comprising the following steps: contacting the root system of a plant with a sludge extract solution added with CaCl2 to activate a messenger; transferring the plant treated by the activated messenger to an agar gel layer plate added with bromocresol purple indicator; observing the color development of the agar gel layer plate during the culture process; and judging the content of the plant growth hormone-like substances in the sludge extract solution according to the color development. The method for detecting plant growth hormone-like substances in sludge stabilization products provided by the application is based on the acidification degree of the root system of a plant, takes bromocresol purple as an indicator, and combines color development with a plant water culture experiment, so that simple, rapid and low-cost qualitative detection of the plant growth hormone-like substances in sludge stabilization products is realized.

The invention belongs to the field of preparation of biopolymer materials, and particularly relates to a preparation method of agar gel microspheres, the agar gel microspheres prepared by the preparation method and application of the agar gel microspheres. Aiming at the problems of large particle size range, poor particle size uniformity and the like of the existing hydrogel microspheres, the invention provides the preparation method of the agar gel microspheres, which comprises the following steps: (1) mixing a bacterial suspension and an agar aqueous solution, and carrying out primary preheating to obtain a water phase; (2) an oily solvent and a surfactant are mixed and subjected to secondary preheating, an oil phase is obtained, and the surfactant is selected from at least two of a span series surfactant, a Tween series surfactant, Triton X-100 and ABIL EM 90; and (3) adding the water phase into the oil phase, stirring at 45-75 DEG C, curing, and demulsifying to obtain the agar gel microspheres. The hydrogel microspheres prepared by the method are appropriate in particle size range and good in particle size uniformity.

The utility model discloses a rollable extraction type puncher based on porous agar gel, which comprises an extraction type puncher connecting total component, a supporting plate is fixedly connected to the side surface of the extraction type puncher connecting total component, an output plate is arranged on the side surface of the extraction type puncher connecting total component, and the output plate is fixedly connected with the supporting plate. And a piston plate is clamped on the surface of the inner ring of the output plate in a limiting manner. After the device is inserted, a user needs to use and insert a second pull ring, so that the user can block other openings of the output plate so as to ensure the sealing performance of the whole use of the extraction type perforating machine connecting total component, and when the user inserts the output plate, the user needs to screw a knob handle, so that the user can conveniently insert the second pull ring into the output plate. In this way, a user can unscrew a threaded rod on a nut, so that the user can adjust the position of a limiting insertion rod on a connecting lantern ring, and the user can efficiently punch agar gel.

The invention belongs to the technical field of agar extraction and processing, and discloses a method for determining agar gelation pH and time and application. The method for determining the gelation pH and the gelation time of the agar comprises the following steps: collecting the gelation pH and the gelation time in the production process of agar products in a factory, and measuring the gel strength of the agar to form a data set; utilizing machine learning to predict and optimize the agar gel strength to obtain gelation pH and time range; the gelation time is determined according to the relation between the generation rates of ClO3 <-> and ClO4 <-> under different gelation pH values and the time; and under the gelling time, constructing a relation model between the gelling pH and the concentrations of ClO3 <-> and ClO4 <-> to determine the gelling pH. According to the method, rich data accumulated in large-scale production of factories and mechanism experiment results accurately developed in laboratories are fused, and through deep cooperation and interactive verification of the rich data and the mechanism experiment results, the gel strength is optimized and improved, and the chlorate generation process is effectively controlled.

The present invention defines a process for forming a chewable oral dosage form, such as a gum, with a pleasant texture and flavor. Specifically, the invention comprises the process of forming an oral dosage form comprising a first step of hydrating the agar-agar gelling agent and locust bean gum; a second step of incorporating components of the agar matrix; a third step of incorporating the active ingredient; a fourth step of cooking the mixture; a fifth step of flavoring; a sixth step of molding and gelling; and a seventh step of demolding, degreasing, and drying. Likewise, the oral dosage form according to the present invention comprises an agar-agar matrix in combination with gums such as locust bean gum and / or sugar; glycerin; inulin; flavorings; citric acid; a coating; and water to complete the composition, which includes the active ingredients.