11 results about "Hot water extraction" patented technology

The invention relates to the technical field of polysaccharide extraction, in particular to a compound polysaccharide for delaying blue light induced eye aging and a preparation method thereof, and the polysaccharide compound is prepared by compounding tremella polysaccharide, sparassis crispa polysaccharide and pleurotus geesteranus polysaccharide according to a specific proportion. The preparation method comprises the following steps: respectively carrying out steam explosion pretreatment to extract three edible fungus polysaccharides, preparing a monosaccharide solution through a hot water extraction-alcohol precipitation method and impurity removal, compounding according to the mass ratio of tremella polysaccharide to sparassis crispa polysaccharide to pleurotus geesteranus polysaccharide of (1-3): (1-2): (0.5-2), uniformly stirring under mild conditions, and freeze-drying to obtain a compounded product. The compound polysaccharide has the beneficial effects that the compound polysaccharide shows a remarkable anti-aging effect in a fruit fly blue light irradiation model, the H2O2 level and ROS fluorescence intensity of eyes can be reduced, and eye pigment accumulation is reduced, so that eye aging induced by blue light is delayed.

A highly-active Rhizoma dioscoreae polysaccharide and a preparation method thereof is described in relation to nutritional food production. The preparation method includes: subjecting a Rhizoma dioscoreae slurry to an ultra-high pressure treatment to produce an ultra-high pressure-treated Rhizoma dioscoreae slurry; inoculating Lactiplantibacillus plantarum subsp. plantarum into the ultra-high pressure-treated Rhizoma dioscoreae slurry, and conducting fermentation to produce a Rhizoma dioscoreae fermentation broth; and subjecting the Rhizoma dioscoreae fermentation broth to hot water extraction and then centrifugation, and collecting, concentrating, and drying a resulting supernatant to produce the Rhizoma dioscoreae polysaccharide.

Provided is a method capable of industrially advantageously producing a Lamiaceae plant extract containing rosmarinic acid at a high concentration. A method for producing a hot-water extract of a Lamiaceae plant including the following steps (A) and (B): (A) subjecting a Lamiaceae plant to a blanching treatment at 85°C or higher, then drying; and (B) extracting a dried product obtained in the step (A) with hot water.

The present application belongs to the technical field of bioactive polysaccharides, and particularly relates to astragalus polysaccharide for improving gait, and a preparation method and application thereof. The astragalus polysaccharide is prepared by hot water extraction, and low-molecular astragalus polysaccharide is prepared by degrading the astragalus polysaccharide with weak acid. Further, the obtained astragalus polysaccharide and low-molecular astragalus polysaccharide are taken as objects, and behavioral study is carried out on Caenorhabditis elegans as a model, and the turning ratio of Caenorhabditis elegans is taken as a gait detection index, so as to confirm that the astragalus polysaccharide and low-molecular astragalus polysaccharide both have the effect of improving gait. The astragalus polysaccharide and low-molecular astragalus polysaccharide provided by the present application can be further used for the development of food, medicine and health products, and has a wide application prospect.

The application discloses a preparation method of a pollen composition with whitening and anti-wrinkle effects, a product and application thereof, and belongs to the technical field of compositions. The technical problem to be solved is to provide an active component with the double effects of whitening and anti-wrinkle, and the active component is extracted and the component is simple and stable. The technical solution is as follows: at least two or more of pine pollen, sunflower pollen, tea pollen and rose pollen are used as raw materials, the raw materials are physically crushed, then subjected to enzymolysis by using a composite cellulase, and then subjected to hot water extraction, so that whitening components and anti-wrinkle components are enriched, and the prepared pollen composition has excellent whitening effect and anti-wrinkle effect.

The invention discloses ampelopsis japonica polysaccharide, a preparation method thereof and application of the ampelopsis japonica polysaccharide in preparation of a medicine for treating colorectal cancer. Crude ampelopsis japonica polysaccharide is extracted by adopting a hot water extraction method, and three novel polysaccharides are separated and purified from ampelopsis japonica for the first time through a combined purification process combining DEAE-52 cellulose ion exchange chromatography and sephadex G-200 gel permeation chromatography; the molecular weight, monosaccharide composition, glucosidic bond connection mode, triple helix structure, microstructure and the like of ampelopsis japonica polysaccharide are systematically characterized, and on an AB-line zebra fish tumor model constructed by DiI fluorescence labeled HCT116 human colorectal cancer cells, the three polysaccharides all show concentration-dependent anti-colorectal cancer activity; the invention provides a new candidate molecule and an application basis for development of colorectal cancer treatment medicines and related functional foods.

The invention relates to the technical field of extraction, and particularly discloses a tremella aurantialba polysaccharide segmented extraction method based on hot water extraction and ultrafiltration, which comprises the following steps: S1, after tremella aurantialba sporocarp is crushed, low-temperature plasma treatment is adopted, and a composite enzymatic hydrolysate containing 0.5-1.5% of cellulase and 0.3-1% of pectinase is added; s2, adding water into the material after enzymolysis according to the ratio of 1: 20-1: 40, and extracting in two stages; s3, leach liquor sequentially passes through a 100kDa ultrafiltration membrane system, a 30kDa ultrafiltration membrane system and a 10kDa ultrafiltration membrane system which are connected in series; s4, respectively dissolving the F1-F3 components, loading the dissolved F1-F3 components to a DEAE-SepharoseFastFlow anion column, carrying out gradient elution by adopting 00.5 M NaCl, and collecting four main peaks of P1-P4 according to the change of conductivity; s5, compounding the components and enhancing the effect; according to the method, through the synergistic effect of ultra-low-temperature plasma pretreatment and APG enhanced enzymolysis, the cell wall breaking efficiency is remarkably improved, efficient dissolution of tremella aurantialba polysaccharide is achieved under the mild condition, and the extraction period is greatly shortened.

The invention belongs to the technical field of preparation of natural active products, and particularly relates to an ultrasonic combined microjet preparation method and application of high-activity mulberry and silkworm chrysalis cordyceps polysaccharide. The purified mulberry and silkworm chrysalis cordyceps polysaccharide prepared by using the ultrasonic extraction technology provided by the invention has the characteristics of high total sugar content and strong antioxidant activity; after further microjet treatment, the total sugar content is further increased, the protein impurity content is reduced, and the antioxidant activity is enhanced. Besides, the mulberry and silkworm chrysalis cordyceps polysaccharide prepared by the ultrasonic combined microjet technology provided by the invention can remarkably inhibit proliferation of human non-small cell lung cancer A549 cells, and the cell survival rate is 10.67% + / -1.87% under the conditions that the concentration is 0.5 mg / mL and the action is performed for 72 hours, and is remarkably lower than that of polysaccharide which is not subjected to microjet treatment and polysaccharide (Plt; 0.05 or Plt; 0.01) of the substrate.

The utility model relates to the technical field of phellinus igniarius cleaning, and discloses a phellinus igniarius hot water immersion advanced treatment device which comprises a box body, an equipment chamber, a cleaning chamber and a discharging and drying chamber are formed in the box body, a filter cartridge is rotatably connected to the inner wall of the cleaning chamber, and two arc-shaped pushing plates are fixedly installed on the inner surface of the filter cartridge. The top end of the equipment chamber is fixedly sleeved with a feeding pipe; according to the phellinus igniarius cleaning device, the phellinus igniarius continuously rolls and moves in the barrel through the rotation of the filter barrel and the arrangement of the arc-shaped pushing plate in the barrel, so that the phellinus igniarius can be cleaned in all directions, the condition that raw materials are not thoroughly and uniformly cleaned locally is avoided, and the turning effect on the phellinus igniarius is further enhanced through the turning plate on the hollow rotating shaft; according to the phellinus igniarius cleaning device, phellinus igniarius in the filter cartridge can be efficiently stirred and turned over, cleaning is more sufficient, meanwhile, the spray head rotates along with the hollow rotating shaft, water can be evenly sprayed on the phellinus igniarius, water spraying dead angles are avoided, and the cleaning efficiency and quality are improved.

The utility model provides a waste heat recovery device which comprises a supporting seat, a heat recovery shell is installed on the surface of the top side of the supporting seat, and an air outlet pipe is fixedly communicated with the top end of the heat recovery shell. The top end of the hot water discharging pipe is communicated with the bottom of the heat recovery shell, and the tail end of the hot water discharging pipe is communicated with the hot water collecting tank; the hot water pumping mechanism is communicated with the hot water collecting tank; the air exhaust mechanism is communicated with the heat recovery shell; the heat exchange water spraying assembly is installed in an inner cavity of the top end of the heat recovery shell. Under the action of the arranged heat exchange water spraying assembly, sprayed cold water and pumped hot air can be sprayed oppositely, heat in the hot air is transferred into the cold water, then heat exchange cooling of hot waste gas is achieved, heat exchange is achieved, the cold water is heated, follow-up use is facilitated, energy consumption is reduced, cost is reduced, economic benefits are improved, and energy saving is achieved.

Provided is a Low-E glass plate protective sheet having excellent long-term reliability. A Low-E glass plate protective sheet is provided. The protective sheet has a PSA layer. The PSA layer has a chloride ion amount of 105 μg or less per gram of PSA, determined by hot water extraction.