32results about How to "Prevent denaturation and inactivation" patented technology

The invention discloses a method for preparing surface molecular imprinting microspheres through polymerization of Pickering emulsion based on hydrophobic hydroxylapatite nanometer stable particles and application. The method for preparing the surface molecular imprinting microspheres comprises the steps that the hydrophobic hydroxylapatite nanometer particles are used as stable particles, protein is used as template molecules, polymeric microspheres are prepared through self-assembly of dopamine monomers in an aqueous phase, the template molecules are further removed through eluent, and the surface molecular imprinting microspheres can be obtained. Print sites are arranged on the surfaces of the surface molecular imprinting microspheres, the surface molecular imprinting microspheres can be in full contact with target molecules in a solution, efficient specific adsorption on the target molecules can be achieved, and the surface molecular imprinting microspheres can be widely applied to specific adsorption and separation of protein in a biosystem. According to the method, preparation is easy to grasp, preparation is easy and convenient, cost is low, and large-scale industrial production is greatly facilitated.

The invention belongs to the field of gardening or food equipment, in particular to an extraction system for active substances in plant raw materials. The extraction system consists of a liquid circuit system, a leak cup, a water bath, an ultrasonic wave and a water bath cover. The bottom and side of the liquid suction pump of the liquid system are respectively provided with a liquid inlet pipe and a liquid outlet pipe. The bottom of the liquid outlet pipe is provided with a distribution head, and a number of coils are arranged on the distribution head. In the inner bottom of the leak cup; the cup handle of the leak cup is hung on the water bath, fixed by a fixing device, and detachably fixed on the upper edge of the cup body; the liquid outlet pipe is vertically inserted into the leak cup for extraction in liquid and set eccentrically. The invention has the technical effects of fast extraction speed, high extraction rate, easy assembly and stable operation.

The invention belongs to the technical field of special methods for collecting honey, and specifically discloses a method for raising bees, which includes the following steps: Step 1: Prepare a honey extraction device, the honey extraction device includes a separation cylinder and a rotating cylinder, and the separation cylinder rotates A drive shaft is connected, and the drive shaft is fixedly connected to the drum. There is a separation through hole on the side wall of the drum, and the drive shaft is connected to a drive mechanism; Step 2: Remove the sealing wax on the spleen plate; Step 3: Remove the spleen plate After putting in the drum and fixing it, start the drive mechanism; step 4: heat the inside of the drum, the heating temperature is 40-55 degrees Celsius; step 5: cool the gap between the drum and the separation drum, the cooling temperature is ‑ 10 to 5 degrees Celsius; Step 6: Put dry silica gel particles into the gap between the drum and the separation drum; Step 7: After 10 to 15 minutes, pour out the obtained honey and filter it to remove the dry silica gel particles. The honey is then collected for packaging. The purpose is to solve the problem that the beeswax is mixed in the honey when taking honey in the prior art.

A process for preparing the liposome of the medicine easy to be oxidized, hydrolyzed and modified includes such steps as dissolving the ester substance and the lipophilic substance to be coated in organic solvent to form oil phase, dissolving the hydrophilic substance to be coated in water to form internal water phase, mixing them, emulsifying to become W1 / O type emulsion, mixing it with proper aqueous solution, emulsifying to become W1 / 0 / W3 type complex emulsion, freeze drying, and hydrating to become liposome.