30results about How to "Long shelf life at room temperature" patented technology

The invention discloses a processing method of water-retention ready-to-eat natural rhopilema esculentum, wherein the processing method comprises the following working procedures: salting rhopilema esculentum and cutting into shreds; blanching for 20-30 seconds at 60-70 DEG C; rinsing for 3-8 minutes by use of running water; rinsing for 20-40 minutes by use of running water; rinsing by four stilling basins successively, and rinsing for 20-40 minutes for each basin; immersing by use of an immersing liquid containing calcium chloride and treholose; immersing by use of an immersing liquid containing potassium sorbite and acetic acid; and leaching water and carrying out vacuum packaging, thereby obtaining the water retention ready-to-eat natural rhopilema esculentum. The water retention ready-to-eat natural rhopilema esculentum prepared by the processing of the technology has reduced salt and vitriol content, is crisp in mouthfeel, is long in quality guarantee period, moreover is low in production cost, and is short in production time.

A purpose of the present invention is to provide a mixed gel food having good thermal stability, wherein the mixed gel food comprises 18-22 wt% of white granulated sugar, 0.1-0.3 wt% of konjac gum, 0.1-0.3 wt% of Kappa type carrageenan, 0.1-0.3 wt% of gellan gum, 0.05-0.1 wt% of xanthan gum, 0.1-0.3 wt% L-calcium lactate, and process water. The present invention further provides a production method of the mixed gel food.

The invention relates to an epoxy resin system, a preparation method thereof and a prepreg. The epoxy resin system comprises the following components: in parts by mass, 100 parts of main epoxy resin,5-50 parts of a powder curing agent and 0-20 parts of a toughening agent, wherein each 100 parts of the main epoxy resin comprises the following components: in parts by weight, 10-70 parts of liquid epoxy resin, X parts of semi-solid epoxy resin and Y parts of solid epoxy resin, 30<=X+Y<=90, and Y<=60; the average value Ea of the apparent activation energy of the epoxy resin system in a curing reaction is >=70 kJ/mol; through theoretical researches combined with a large number of experiments, by selecting the powder curing agent, the contact area of the curing agent with the epoxy resin can bereduced, and the apparent activation energy of the resin system in the curing reaction can be adopted as an important basis for the preferred resin system, so that the obtained epoxy resin system andthe prepreg prepared by using a hot-melt method are cured at a low temperature of 80 DEG C or below and cured rapidly within 10 min at 130-150 DEG C or below, and the storage period of the prepreg atroom temperature reaches 20 days or above.

The invention discloses a fotiaoqiang frozen conditioning bag and a processing process thereof, wherein the recipe comprises the following ingredients: 25 to 32 parts of beef tendons, 25 to 35 parts of sea cucumbers, 8 to 14 parts of abalones, 18 to 24 parts of fish maws, 18 to 24 parts of sliced conchs, 13 to 18 parts of pleurotus eryngii, 12 to 16 parts of winter bamboo shoots, 8 to 12 parts of dried scallop meat, 8 to 10 parts of quail eggs, 4 to 5 parts of yellow rice wine and 95 to 105 parts of safflower puree; the processing process is also disclosed. The fotiaoqiang frozen conditioning bag has the advantages that the processing process is scientific and reasonable; the industrial production is realized; the processing process is easy to master; the product quality of the obtained frozen conditioning bag is stable; the shelf life at normal temperature is long; after being bought by consumers, the food is cooked after stewing for 10 to 15 minutes in the frozen state; the eating is convenient and fast; the taste is delicious; the fragrance is durable; the taste enjoyment degree is higher than that of a traditional method; in addition, the product has high nutrition value; after the product is often eaten, the body immunity can be improved; the sleeping is improved; the sub-health status is further improved.

The invention provides a high-temperature-resisting structural adhesive film capable of being stored for a long time at the room temperature and a preparation method thereof and relates to a structural adhesive film and a method for preparing the adhesive film. The structural adhesive film and the method for preparing the adhesive film aim to solve the problems that an existing structural adhesive film is short in room temperature storage life, and combusted smoke is high in toxin. The adhesive film is composed of polybenzoxazine resin, a toughening agent, modifier, a heat conduction material, a coupling agent, inorganic filler and a carrier. The preparation method includes the steps that firstly, process modifier and toughening modifier are subjected to prepolymerization in a reaction kettle, then the polybenzoxazine resin is added and stirred to be uniform, and modified polybenzoxazine resin is obtained; then, the modified polybenzoxazine resin is subjected to vacuum kneading with the silane coupling agent, the heat conduction material and the inorganic filler through a kneading machine, and an adhesive material is obtained; finally, the adhesive material is subjected to hot pressing with the carrier on an adhesive film calender to be made into the film, and the high-temperature-resisting structural adhesive film can be obtained. The high-temperature-resisting structural adhesive film has the advantages of being flame retardant, low in smoke, low in toxin, capable of achieving complete curing at the temperature of 185 DEG C, high in adhesion strength and good in high temperature resistance; the adhesive film is stored for 180 days at the room temperature, and process performance and adhesion performance maintain unchanged.

The present invention relates to a preparation method of multiple active bifidobacterium products. It is characterized by that according to the requirements of different crowds said invention adopts different kinds of bifidobacterium live bacterial powders to preparae multiple bifidobacterium live bacterial dried powders. In these multiple bifidobacterium live bacterial dried powders the oligosaccharides with the function of promoting multiplication and amino acids can be added so as to obtain the invented multiple active bifidobacterium products.

The invention provides a nutritious potato chip containing probiotics and a preparation method thereof. The preparation method comprises the following steps: using fresh potatoes as the raw material,making the potatoes into slices and immersing in water, carrying out vacuum freeze-drying on the slices and spraying a probiotics solution on the surface of the slices, vacuum-drying, brushing with amixed solution prepared from an okra extract, sodium alginate and a soak solution, naturally air-drying, carrying out low-temperature baking at 85-95 DEG C or carrying out freezing treatment, and finally carrying out vacuum low-temperature frying. During the preparation process of the potato chip, the probiotics component is added, thus raising nutritive value of the potato chip. The potato chip is beautiful in color, has low moisture content, low oil content and high survival rate of live bacteria, and has long storage life at normal temperature.

The invention discloses water-based release glue as well as a preparation method and application thereof. The water-based release glue comprises the following components in parts by weight: 10-30 parts of water-based polyester resin; 20-50 parts of a water-based modified acrylic emulsion; 10 to 20 parts of a waterborne polyurethane modified acrylate emulsion; 5 to 25 parts of a cosolvent; 10 to 40 parts of deionized water; and 0.5 to 1.5 parts of an anti-sticking agent. The water-based release glue is a water-based coating, adopts the water-based modified acrylic emulsion, the water-based polyurethane modified acrylate emulsion and the water-based acrylic modified polyester, and is added with the anti-sticking agent, the cross-linking agent and the like, so that the water-based release glue has the advantages of excellent temperature resistance, flexibility, scratch resistance, good printing and decoration effects, high drying speed, good adhesive force and stripping balance degree, and good water-based release effect. And complete stripping can be realized by pulling with a 3M strong adhesive tape.

The invention discloses an anti-sedimentation agent added into building coating and a preparation technology. According to the anti-sedimentation agent added into the building coating and the preparation technology, the anti-sedimentation agent is prepared from the following raw materials in parts by mass: 20 to 25 parts of de-ionized water, 0.4 to 0.6 part of a dispersant, 4 to 6 parts of an anti-sedimentation agent, 0.7 to 1.1 parts of a preservative, 0.3 to 0.5 part of a pH (Potential of Hydrogen) stabilizing agent, 0.2 to 0.5 part of a de-foaming agent, 14 to 20 parts of pigment and filler, 65 to 75 parts of waterborne hydroxyl dispersion, 45 to 55 parts of resin, 2 to 4 parts of a curing agent, 45 to 55 parts of hydrophilic modified polyisocyanate, 55 to 65 parts of methyltrimethoxysilane, 18 to 24 parts of silica sol and 75 to 85 parts of elastic emulsion. The coating disclosed by the invention has the beneficial effects that the coating has the advantages of environment protection, no ignition under fire, no expansion, no emission of smoke and long quality guarantee period at room temperature; the building coating has stable components and a good adhesion force and is convenient to construct; the anti-sedimentation agent is directly added into the coating through a special processing manner, so that the coating has a better wetting and dispersion function; and the leveling property and the anti-sedimentation effect are more obvious.

The invention relates to a solvent-free type 180 DEG C-resistant ultralow-viscosity epoxy resin matrix and a preparation method thereof, and aims to solve the problems of short low-viscosity working life, low use temperature, high curing temperature and high hygroscopicity of most existing epoxy resin matrixes for RTMs. The epoxy resin matrix consists of a bifunctional epoxy resin, a polyfunctional epoxy resin and a liquid-state curing system. The preparation method of the epoxy resin matrix comprises the following steps: stirring components at a high speed, fully and uniformly mixing, and defoaming in vacuum to obtain the epoxy resin matrix. According to the invention, the preparation process is simple and convenient, the epoxy resin matrix is low in viscosity, environmentally friendly and long in process window time, and the glass transition temperature (Tg) of the matrix after medium-temperature (150 DEG C) curing is higher than 180 DEG C; and the resin matrix is applied to the technical field of polymer composite materials.

The invention relates to the field of epoxy resin curing agents, in particular to a moderate-temperature-curing latent epoxy resin curing agent. The curing agent comprises the following components inparts by mass: 100 parts of a resin main body, 5-15 parts of a high-temperature curing agent, 1-5 parts of a modified curing agent, 0-2 parts of a stabilizer and 5-10 parts of a nano-filler. The selected modified curing agent has a good room-temperature storage period on the premise of realizing moderate-temperature (100-120 DEG C) curing; the addition of the stabilizer and the nano-filler can achieve a good toughening effect, the nano-filler can also reduce the thermal expansion coefficient of an adhesive, and the stabilizer plays an important role in prolonging the room-temperature storage period; and besides, the high-temperature curing agent and the modified curing agent are used in cooperation according to a certain ratio, so an epoxy resin curing system has a certain proportion of flexible chain segments while having high cross-linked network density, and the cured system has good Al-Al lap shear strength and tensile strength.

The invention belongs to the technical field of epoxy resin, and particularly relates to a medium-temperature fast-curing single-component epoxy resin system for prepreg and a preparation method thereof. The medium-temperature fast-curing single-component epoxy resin system for prepreg is prepared by the following steps of: preparing a component A, namely heating and stirring an epoxy resin matrix; preparing a component B, namely performing nucleophilic substitution reaction on an imidazole compound containing an active N-H bond and cyanuric chloride to obtain an imidazole latent curing agent containing a triazine ring structure; and heating, stirring and uniformly mixing the component A and the component B to obtain the single-component epoxy resin system for prepreg.

The invention relates to a normal-temperature preservation method of nitrifying bacteria, which comprises the following steps: (1) carrying out aeration culture on the nitrifying bacteria to a stable growth period, and collecting thalli; (2) adding the thalli and the microalgae into a preservation solution, and preserving the thalli and the microalgae; the preservation condition is room temperature, light and dark alternate culture is carried out, and the total sunlight illumination time is longer than 8 h; and (3) after the preservation is finished, cutting out an upper microalgae layer, and adding the rest materials into a culture solution for aeration culture to obtain the nitrifying bacteria with stable activity. According to the invention, large-batch normal-temperature preservation of thalli is realized by adopting a phycomycete symbiosis mode, and the method has the advantages of long normal-temperature preservation period, good preservation activity, high recovery speed and the like.

The invention discloses a preparation method of mulberry whole fruit powder, which comprises the following steps: (1) removing impurities from fresh mulberries, conducting cleaning and pulping, and carrying out enzymolysis on endogenous pectin; (2) adding a softener, stirring, dissolving, dispersing and softening the mulberry seeds, conducting heating for degasing, conducting sterilization, deactivating enzyme and softening the mulberry seeds by heating power; (3) refining the slurry by a colloid mill for 2-3 times to refine the mulberry seed particles and release the mulberry seed oil, adding citric acid fatty acid glyceride, conducting stirring, dispersing and dissolving, carrying out micronization treatment for 1-2 times by using a colloid mill to obtain emulsified mulberry pulp, and using a homogenizer for carrying out particle ultrafine pulverization, so as to obtain slurry homogenized liquid; and (4) performing spray drying and cooling, adding an anti-caking agent, and performing uniform mixing so as to obtain the mulberry whole fruit powder product. According to the method, the mulberry pulp and the mulberry seeds are completely utilized, the raw material utilization rate is high, the nutritional value is high, and the product flavor is pure.

The embodiment of the invention discloses a hot-melt pressure sensitive adhesive film. The raw materials of the hot-melt pressure sensitive adhesive film include, by weight, 25-35 parts of a resin, 30-40 parts of a rubber, 1-3 parts of a vulcanized rubber composition, 3-10 parts of a promoter, 25-35 parts of a filler and 1-5 parts of a crosslinking agent. The raw materials undergo open milling andmixing by an open mill, and the obtained mixture is cast to obtain the hot-melt pressure sensitive adhesive film. The promoter is at least one or a mixture of 2,4,6-tris(dimethylaminomethyl)phenol,triethylamine, triethanolamine, benzyldimethylamine, a bicyclic amidine curing agent, 2-dimethylaminomethylphenol, pyridine and a quaternary ammonium salt promoter. The hot-melt pressure sensitive adhesive film of the invention has the advantages of high curing speed, excellent storage stability, high curing strength, good temperature resistance, environmental protection during preparation, and low cost.