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40results about How to "Weak hygroscopicity" patented technology

Disposable articles for analysis and diagnostics for a laboratory

The invention relates to disposable articles for a laboratory and in particular to prepared reaction vessels for conducting the polymerase chain reaction for analytical and diagnostic purposes. The invention further relates to a method for the stable storage and drying of minute amounts of oligonucleotides and reference nucleic acids in reaction vessels. The oligonucleotides and the nucleic acids are dried on the wall of the reaction vessel in the presence of 1 to 5 mM trehalose, without any further components.
Owner:QIAGEN GMBH

Moisture absorption module used for refrigerator and refrigerator

The invention provides a moisture absorption module used for a refrigerator and the refrigerator. The moisture absorption module comprises a liquid storage device, a first channel and a first moisture absorption part; the liquid storage device contains liquid-stage liquid with the ice point lower than or equal to the preset threshold value; the first channel is used for conveying air in the exterior space of the refrigerator to a storage compartment of the refrigerator; the first moisture absorption part is made of a moisture absorption material and is arranged in the first channel in a manner of being adjacent to an outlet of the first channel, the temperature of the first moisture absorption part is lower than the temperature of the air in the exterior space of the refrigerator, the first moisture absorption part is partly immersed in the liquid-state liquid in the liquid storage device, liquid-state liquid is absorbed under the siphoning, and therefore the liquid-state liquid absorbed by the first moisture absorption part dissolves at least part of steam in air flowing through the surface of the part; and when the air of the exterior space of the refrigerator flows through the surface of the first moisture absorption part, the liquid-state liquid is used for dissolving the part of steam in the air, and therefore air entering in the storage compartment of the refrigerator can be dehumidified.
Owner:QINGDAO HAIER SMART TECH R & D CO LTD

Glossy ganoderma polysaccharide granules and preparation method and application thereof

The invention relates to the technical fields of foods and drugs, and discloses glossy ganoderma polysaccharide granules and a preparation method and application thereof. The glossy ganoderma polysaccharide granules are prepared by granulating glossy ganoderma polysaccharide raw materials, an adhesion agent, auxiliary materials and an Arabic gum aqueous solution through a fluidization bed, whereinthe auxiliary materials are selected from one or two or more of chitosan hydrochloride, sodium starch phosphate and anhydrous calcium hydrogen phosphate. Through combination of appropriate auxiliarymaterials, through the compounding ratio of raw materials and auxiliary materials, and through combination with an appropriate fluidization bed granulation technology, the prepared glossy ganoderma polysaccharide granules are weak in moisture absorbing properties, good in flowing dispersibility, high in yield and high in medicine carrying amount, and favorable application prospects are provided for storage of glossy ganoderma polysaccharide and shaping of subsequent preparations. The method is low in equipment requirement, simple in technology, and short in production cycle, the production cost is greatly reduced, the production efficiency is improved, and the glossy ganoderma polysaccharide granules are suitable for mass production and application.
Owner:INFINITUS (CHINA) CO LTD

Moistureproof type flame retardant

The invention discloses a moistureproof type flame retardant which comprises the following components by weight: 80-150 parts of magnesium hydroxide, 3-9 parts of a silane coupling agent, 3-10 parts of sodium stearate, 10-20 parts of zinc oxide, and 3-8 parts of a lubricant. The flame retardant disclosed by the invention is low in production cost, poor in moisture absorption, and small in losing tendency, does not generate deliquescence and efflorescence phenomena, and is suitable for use as an upgraded type artificial board flame retardant.
Owner:JIAOZHOU FUTIAN CHEM ENG

Beef flavoring powder and preparation method thereof

A beef flavoring powder and a preparation method thereof. The beef flavoring powder is prepared from following raw materials, by weight: 300.0-420.0 parts of salt powder, 200.0-280.0 parts of sugar powder, 18.0-22.0 parts of glucose powder, 150.0-200.0 parts of monosodium glutamate powder, 8.0-12.0 parts of D-xylose, 1.5-2.5 parts of L-cysteinate, 160.0-240 parts of an enzymatic hydrolysate, 80.0-120 parts of soybean sauce, 50.0-80 parts of yeast essence, 7.0-9.0 parts of sesame oil, 1.5-2.0 parts of phosphoric acid, 2.0-2.5 parts of ethyl maltol, 8.0-9.0 parts of IMP, 400.0-500 parts of corn starch and 12.0-15.0 parts of a beef essence base. The enzymatic hydrolysate is prepared by adding water to crushed soya bean protein, adding a neutral protease and a composite flavor protease and performing double-enzyme hydrolysis, wherein the components for preparing the enzymatic hydrolysate comprise, by weight: 100-140 parts of the soya bean protein, 100-140 parts of water, 0.4-0.6 parts of the neutral protease and 0.4-0.6 parts of the composite flavor protease. The double-enzyme hydrolysis is carried out through following steps: (1) heating the components to 90 DEG C for 10 min; (2) decreasing the temperature to 55 DEG C; (3) performing enzyme hydrolysis for 4 h and performing enzyme deactivation in water at 95 DEG C for 30 min; and (4) adding 10% of salt to obtain the enzymatic hydrolysate.
Owner:谈丽娜

Dry powder based on yersinia pestis attenuated vaccine and preparation method of dry powder

The present invention discloses dry powder based on a yersinia pestis attenuated vaccine. The dry powder is prepared from the following raw materials in parts by weight: a group A of raw materials anda group B of raw materials; the group A of the raw materials comprise a live yersinia pestis attenuated vaccine, 5-10 parts of oligosaccharide, 8-15 parts of amino acids, 10-15 parts of vitamins, 15-30 parts of mixed colloid, 5-9 parts of a casein hydrolysate, 10-15 parts of an emulsifier, 1-3 parts of glycerol, 2-4 parts of trace elements, 6-9 parts of an antioxidant, 10-15 parts of water and 2-4 parts of a pH regulator; and the group B of the raw materials comprise 10-15 parts of honeysuckle flowers, 10-15 parts of radix scutellariae, 4-6 parts of rhizoma coptidis, 4-6 parts of radix isatidis, 10-15 parts of fructus forsythiae and 1-3 parts of radix scrophulariae. The dry powder based on the yersinia pestis attenuated vaccine is low in water content, weak in moisture absorption capacityand beneficial to storage and transportation, has effects of relieving exterior syndromes and clearing away heat and toxic materials on body of a patient while aiming at yersinia pestis, improves a cure rate, and is suitable for patients of all ages.
Owner:吉林省地方病第一防治研究所

Palmatine hydrochloride-aspirin supramolecular compound

ActiveCN114478517AThe preparation method is green and efficientClear crystal structureAntibacterial agentsOrganic active ingredientsStructural unitPalmatine hydrochloride
The invention discloses a palmatine hydrochloride-aspirin supramolecular compound as well as a preparation method and application thereof, and belongs to the technical field of medicine crystallization. The structural unit of the pharmaceutical co-crystal comprises palmatine hydrochloride molecules, aspirin molecules and water molecules, the molar ratio of the palmatine hydrochloride molecules to the aspirin molecules to the water molecules is 1: 1: 1, and the molecular formula of the pharmaceutical co-crystal is [C21H22ClNO3]. [C9H8O4]. H2O. The palmatine hydrochloride-aspirin supramolecular compound is prepared by mixing a palmatine hydrochloride hydrate and aspirin in a solvent according to a molar ratio of 1: 1 and carrying out spray drying, evaporation or suspension stirring and other processes, the preparation method is green and efficient, and the supramolecular compound is high in light stability, wet stability and thermal stability and weak in hygroscopicity, and can be used for preparing the palmatine hydrochloride-aspirin supramolecular compound. The compound has good human colorectal cancer cell inhibition activity, and can be used as an active component for preparing a pharmaceutical composition or a health care product for treating or preventing colorectal cancer.
Owner:MINJIANG UNIV +1
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