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668 results about "Hot water extraction" patented technology

Hot Water Extraction (HWE) is a method of carpet cleaning. It involves a combination of hot water and cleaning agents being injected into the fibers of a carpet at high pressure and all lifted soil being removed by a powerful vacuum.

Method for extracting dihydromyricetin, ampelopsis grossedentata amylase and ampelopsis grossedentata polyphenol from ampelopsis grossedentata

InactiveCN101973976AImprove development and utilizationImprove efficiencyOrganic chemistryEthyl acetatePolyphenol
The invention relates to a method for extracting dihydromyricetin, ampelopsis grossedentata amylase and ampelopsis grossedentata polyphenol from ampelopsis grossedentata. The method comprises the following processing steps of: (a) crushing raw materials: drying and crushing fresh ampelopsis grossedentata stem leaves; (b) leaching: extracting with hot water and centrifugally collecting supernatant fluid; (c) concentrating: decompressing and concentrating the supernatant fluid I, cooling, standing still and centrifugally collecting precipitate and supernatant fluid II; (d) extracting dihydromyricetin: recrystallizing and drying the precipitate in vacuum to obtain dihydromyricetin; (e) alcoholizing: decompressing and concentrating the supernatant fluid II, depositing in alcohol and centrifugally collecting a precipitate and supernatant fluid III; (f) extracting crude polysaccharides: purifying the precipitate, drying in vacuum or spraying and drying to obtain ampelopsis grossedentata amylase; and (g) extracting ampelopsis grossedentata polyphenol: decompressing and concentrating the supernatant fluid III, extracting with ethyl acetate, concentrating and drying to obtain ampelopsis grossedentata polyphenol or absorbing with AB-8 resin, eluting with distilled water, eluting with ethanol and collecting eluate, concentrating and drying in vacuum to obtain ampelopsis grossedentata polyphenol. The method has the advantages of low cost, higher product yield and environmental protection, is suitable for industrial continuous production and can comprehensively develop and utilize ampelopsis grossedentata resources and improve the economic benefits.
Owner:HUBEI UNIV FOR NATITIES

Preparation method of ganoderma lucidum polysaccharide with high yield

The invention discloses a preparation method of ganoderma lucidum polysaccharide with high yield, which comprises the following steps: firstly, crushing ganoderma lucidum fruiting bodies into ganoderma lucidum powder, then sequentially extracting the ganoderma lucidum powder by adopting a microwave-assisted hot water extraction method and an ultrasonic-assisted hot water extraction method, and carrying out concentration, impurity removal, concentration, alcohol precipitation and drying on the obtained extracting solution to obtain water-soluble ganoderma lucidum polysaccharide; and extracting the ganoderma lucidum residues by adopting an alkali extraction method, and carrying out neutralization, dialysis, concentration, impurity removal, alcohol precipitation and drying on the obtained extracting solution to obtain alkali-soluble ganoderma lucidum polysaccharide. The method is used for extracting the ganoderma lucidum polysaccharide by combining microwave heating action and ultrasonic cavitation and extracting the alkali-soluble polysaccharide in the ganoderma lucidum by utilizing the alkali extraction method, thereby reducing the loss of the ganoderma lucidum polysaccharide; and the prepared ganoderma lucidum polysaccharide has the characteristics of high production yield, strong immunological activity and the like.
Owner:INFINITUS (CHINA) CO LTD

Process and apparatus for converting oil shale or oil sand (tar sand) to oil

Three new embodiments to the Chattanooga Process that convert or upgrade oil bitumen, a combination of oil sands and bitumen, a combination of sand and bitumen, and oil shale to high grade low sulfur (about 0.1 to 0.5 wt. % sulfur, or less) crude oil. The invention relates to a continuous process for producing synthetic crude oil (SCO) from oil sand bitumen which has been extracted from under ground via in situ processes, or strip mined and extracted via hot water extraction processes before upgrading. It can also apply to kerogen extracted in situ from shale underground. The process involves treating the hot bitumen with sand from an extraction process or the hot oil from kerogen with ground shale containing kerogen in a fluid bed reactor where the reactant and fluidizing medium is only hydrogen. The invention also relates to a continuous process for producing synthetic crude oil (SCO) from oil shale kerogen. The invention relates to a continuous process for producing synthetic crude oil from oil bearing material, e.g., oil shale or oil sand (tar sand), through continuous process for producing synthetic crude oil from bituminous oil sand (tar sand) or shale. The process includes treating the oil sand (tar sand) or shale to produce a fluidizable feed, feeding the fluidizable feed to a fluidized bed reactor, and fluidizing and reacting the fluidizable feed in the fluidized bed reactor with a feed of hydrogen provided by a feed stream having a stream containing hydrogen in a concentration greater than 90 vol % (90 vol %-100 vol % H2). In one embodiment, the invention relates to a continuous process which can recover methane and ethane from a recycle hydrogen stream. In one embodiment, the process can recover PSA tail gas as feed to a hydrogen plant. In one embodiment, the process can be operated to reduce or eliminate the requirement for externally provided methane feed to the hydrogen plant.
Owner:DOYLE JAMES A +1

Edible squid skin gelatin composite film and preparation method thereof

The invention discloses an edible squid skin gelatin composite film and a preparation method of the edible squid skin gelatin composite film. The preparation method is characterized by comprising the steps of sequentially soaking the cleaned squid skin by alkali and acid, extracting the gelatin by hot water, and carrying out enzymolysis on part of the gelatin to obtain gelatin peptide with low molecular weight; adding gelatin, chitosan, glycerin and the gelatin peptide with low molecular weight into a 0.15-0.25wt% acetic acid solution, wherein the mass of the gelatin is 2-4% of that of the acetic acid solution, mass of the chitosan is 1.5-2.5% of that of the acetic acid solution, mass of the glycerin is 0.05-0.15% of that of the acetic acid solution, and the mass of the gelatin peptide with low molecular weight is 0.2-0.4% of that of the acetic acid solution; evenly mixing the mixed solution in the water bath with 40-60 DEG C, and carrying out heat preservation for 4-6h; carrying out vacuum degassing to form a uniform transparent film liquid; pouring the film liquid onto a perspex sheet, and evenly spreading the film liquid by a film coater; standing still for 2-4h at the temperature of 40-60 DEG C, and then standing still overnight under the conditions of room temperature and the relative humidity of 40-60%; stripping the film from the perspex sheet to obtain the product. The edible squid skin gelatin composite film and a preparation method of the edible squid skin gelatin composite film have the advantages that the composite film integrates the functions of nutrition, antioxidation, antibiosis and the like, and the preparation method is simple and easy to operate.
Owner:NINGBO UNIV

Heating load stage quality regulation method

The invention discloses a heating load stage quality regulation method, which relates to a regulation method of a hot water heating system and belongs to the technical field of heating regulation. The invention aims to solve the technical problems of high delivery energy consumption, easily-occurring heat supply network imbalance of traditional quantity regulation and the like of the traditional quality regulation method of a heat supply network, and provide a heating load stage quality regulation method capable of meeting the regulation requirements of users and ensuring relatively low energy consumption. The method mainly comprises the following steps: calculating an outdoor critical temperature and dividing the heating into three regulation stages, namely, a stage of gradually increasing a water supply temperature according to the heating load and maintaining a minimum operation flow, a stage of performing quantity regulation, keeping the water supply temperature at a designed value and changing the system operation flow according to a return water temperature, and a stage of quality regulation, wherein when the heating load is gradually reduced and the outdoor temperature is higher than the outdoor critical temperature, the heating enters the last phase, the system flow is reduced to the minimum operation flow and the system operation mode is changed back to quality regulation till the end of the heating period. The method of the invention has an obvious energy saving effect.
Owner:HARBIN INST OF TECH

Extraction of jellyfish collagen and method for producing collagen peptide

The invention relates to a preparation method of jellyfish collagen protein and a method for utilizing the enzyme engineering technology to obtain active peptides with different molecular weight segments. The method takes fresh jellyfish, unfrozen jellyfish or salted jellyfish as raw materials, the acid and base are adopted to carry out the swelling treatment of the raw materials, the jellyfish collagen protein is extracted by hot water, and the collagen is obtained by desalination, concentration and drying. The extracted collagen protein is subject to directional enzymolysis, ultrafiltration separation, desalination, concentration and drying, so the ladder collagen peptides with the different molecular weights can be obtained. The collagen protein and the peptides which are prepared by the invention has high extraction rate, short production cycle, simple production process, controllable product specifications and low cost, which is applicable to the industrial production. The products prepared by the invention are white or light yellow, good in quality and very easy to be dissolved in water, so the products can be used in the fields of medical health care, cosmetics and food, etc. and provide a new idea for the storage and the high-valve utilization of jellyfish.
Owner:OCEAN UNIV OF CHINA
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