908 results about "Supercritical fluid extraction" patented technology

This invention discloses new krill oil compositions characterized by having high amounts of phospholipids, astaxanthin esters and/or omega-3 contents. The krill oils are obtained from krill meal using supercritical fluid extraction in a two stage process. Stage 1 removes the neutral lipid by extracting with neat supercritical CO₂ or CO₂ plus approximately 5% of a co-solvent. Stage 2 extracts the actual krill oils by using supercritical CO₂ in combination with approximately 20% ethanol. The krill oil materials obtained are compared with commercially available krill oil and found to be more bioeffective in a number of areas such as anti-inflammation, anti-oxidant effects, improving insulin resistances and improving blood lipid profile.

The present invention provides methods for preparing tissue for incorporation into xenografts and bioprosthetic devices. The methods of the invention make use of supercritical fluids to remove infectious materials and chemical agents from tissues, as well as to permeate a tissue with a chemical agent (e.g. tanning, cross-linking, and bioactive agents).

A method for producing composite particles using a supercritical fluid extraction technique on an emulsion. First and second materials (for example; a polymer and a biologically active material) are dissolved or suspended in a preferably solvent to form a solution or dispersion. The solution or dispersion is emulsified in a polar solvent to form an oil-in-water or water-in-oil-in-water emulsion. The emulsion is contacted with a supercritical fluid to extract the solvent. Removal of the solvent by the supercritical fluid from the emulsion supersaturates at least the first material in the solution causing the first material to precipitate out of the solution as composite particles that include both the first and second materials.

The invention discloses a preparing method of total sweet chrysanthemum glycosides and total chromocor in sweet leaf chrysanthemum, which is characterized by the following: comprising sweet chrysanthemum glycosides, stevi primary glycosides, labroid glycosides A, B, C, D, E, F, duacl glycosides A and so on in total sweet chrysanthemum glycosides; comprising cyanidenon, meletin, cyanidenon-7-0-beta-D glycosides, celery element-7-0-beta-D-glycosides, quercetin, meletin-3-0-beta-D-arabinoside, meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside] and so on; choosing one or several methods from solvent extraction, solvent extraction process, macroreticular absorption resin method, column chromatography, supercritical fluid chromatography, liquid-liquid counter-current partition chromatography and so on; extracting the total chromocor; setting content of sweet chrysanthemum glycosides element in total sweet chrysanthemum glycosides at 5-100%; counting 5-100% of all sweet chrysanthemum glycosides content with sweet chrysanthemum glycosides and labroid glycosides; counting 5-100% of chromocor element in sweet leaf chrysanthemum total chromocor; counting 5-100% of all total chromocor content with cyanidenon-7-0-beta-D glycosides, quercetin and meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside].

The invention discloses a peony total glycosides extract from traditional medicine white peony root or red peony root and preparing method, which is characterized by the following: comprising peony glycosides, white peony glycosides, peony new glycosides, peony inner ester A, B, C, oxidation peony glycosides, benzoyl peony glycosides, derivant and so on; choosing one or several methods from solvent extraction, solvent extraction process, macroreticular absorption resin method, column chromatography, supercritical fluid chromatography, liquid-liquid counter-current partition chromatography and so on; producing extract; setting sum of various terpene glycosides percentage content at 5-100%(w/w); setting content of peony glycosides at 5-100%(w/w).

The invention discloses a total chromocor extract from traditional medicine citrus fruit and preparing method, which is characterized by the following: comprising pomelo ped glycosides, new orange peel glycosides, orange peel glycosides, pomelo ped rutin, derivant and so on; choosing one or several methods from solvent extraction, solvent extraction process, macroreticular absorption resin method, lead salt precipitation method, column chromatography, supercritical fluid chromatography, liquid-liquid counter-current partition chromatography and so on; producing extract; setting percentage content of various chromocor element at 5-100%(w/w) in the extract; counting 5-100%(w/w) of pomelo ped glycosides, new orange peel glycosides, orange peel glycosides in total chromocor content.

A method and an apparatus for continuously producing particles from an emulsion by supercritical fluid extraction. The emulsion includes a solute suspended or dissolved in the supercritical fluid soluble first phase. The supercritical fluid and the emulsion contact each other such that the first phase dissolves from the emulsion into the supercritical fluid and the solute precipitates to form a suspension in a non supercritical fluid soluble second phase of the emulsion. The supercritical fluid carries away the dissolved first phase. The solvent bearing supercritical fluid, together with the solute suspended in the second phase, is removed from an extraction chamber at a rate that is about the same as a rate that the emulsion and the supercritical fluid flow into the extraction chamber. Thus, a constant mass and pressure is maintained in the extraction chamber and the particles are produced continuously.

Carotenoids are extracted and/or enriched from a mixture containing such compounds. The extraction/enrichment process involves the use of liquefied or supercritical solvents to extract lipids and carotenoids from carotenoid-containing substrates. The extraction process can also be performed in two steps in which lipids and carotenoids are first removed from a carotenoid-containing substrate with a liquefied or supercritical solvent, and subsequently a liquefied or supercritical gas is used to separate the lipids from the carotenoids. The two step process can be reversed to first extract lipids with the liquefied or supercritical gas, and subsequently use the solvent to extract the carotenoids. The process is also applicable to yield an organic solvent-free product from a carotenoid-containing source that was first extracted using an organic solvent.

A process for preparing pure tobacco oil includes mixing tobacco extract with magnetic chemical filler, mixing one of alcohol, acetone and water, preheating, extracting lipids substance from tobacco extract with supercritical fluid, cyclically, and separating pure tobacco oil.

An apparatus and process to effectively create an active drain for high and low pressure gas-liquid separator. The invention accomplishes a deterministic drainage rate of variable volume and viscosity liquid fractions from the separator. The mechanisms and methods thereof create a flow path from the separator that dramatically favors controlled liquid flow over a wide range of flow rates and viscosities while restricting gas flow. The invention is a superior method of drainage over conventional systems that employ pressure, vacuum, isolation valves and/or passive flow restrictors to achieve drainage of the separators. The embodiments are primarily directed to the fields of preparative supercritical fluid chromatography (SFC) and supercritical fluid extraction (SFE). An advantage of one embodiment allows the economical conversion of typical HPLC systems to state of-the-art supercritical fluid chromatography (SFC) systems with minimal modification to system components.

A process for extracting lycopene oil resin from tomato or water melon by supercritical fluid (CO2, propane, ethane, or ethene) includes pre-treating for removing sugar, gum and water from raw material, extracting with said supercritical fluid to obtain lycopene oil resin, packing it under protection of inertial gas in dark position or vacuum packing, and low-temp storage. Its advantages are simple process, high efficiency, low energy consumption, no pollution and low cost.

The invention relates to electronic cigarette liquid and a quality detecting method. The raw materials of the electronic cigarette liquid are cigarette industry finished cigarette tobacco supercritical fluid extracting substances, other components are added, even mixing is carried out according to weight percentage, and then the liquid is prepared. According to the formula, the liquid comprises 10%-30% of finished cigarette tobacco extracting substances, 5%-15% of tobacco flavor, 2%-10% of deionized water and 10%-30% of glycerine, and the rest is propylene glycol. A gas chromatography-mass spectrography method is used for analyzing the extracting substances, a chromatographic peak area normalization method is used for determining the relative content of various volatile components, and according to the key chemical components which determine characteristic aroma style and the magnitude of the relative content, the quality of the electronic cigarette liquid is evaluated. According to the electronic cigarette liquid, the cigarette finished cigarette tobacco supercritical fluid extracting substances are used as main components, the aroma and the taste of an electronic cigarette are made similar to the taste and sense judgment of a traditional cigarette to the maximum degree, and the problem that single cigarette regulated cigarette liquid taste is single and is not harmonious is solved. Meanwhile, cigarette liquid flavor component evaluation is objective and accurate through the gas chromatography-mass spectrography method.

The invention discloses total triterpene extract and total phenol extract extracted from Chinese herbal medicine glossy privet fruit and a preparation method thereof. The total triterpene extract mainly contains oleanolic acid, ursolic acid, acetyl oleanolic acid, indicant compound and other derivatives with acetyl oleanolic acid as the mother nucleus. The total phenol extract mainly contains hydroxyl mandelic, 3, 4-dihydroxy phenylethyl alcohol, salidroside and indicant compound and other derivatives with salidroside as the mother nucleus. The glossy privet fruit total triterpene extract and total phenol extract can be prepared by any method of solvent distillation, solvent extraction, deposition, macroporous resin absorption, supercritical fluid extraction, column chromatography and liquid-liquid countercurrent distribution chromatography, or any combination of these methods. The total percentage of various triterpenoids of the prepared glossy privet fruit total triterpene extract is 5 to 100 percent (w/w); wherein, the content of oleanolic acid and ursolic acid accounts for 5 to 100 percent (w/w) of the total triterpene. The total percentage of various phenols of the prepared glossy privet fruit total phenol extract is 5 to 100 percent (w/w); wherein, the content of salidroside accounts for 5 to 100 percent (w/w) of the total phenol.

The invention discloses a method for preparing total flavonoids of hovenia acerba. The method adopts one optional method of the solvent extraction method, the solvent extraction method, the macro-porous resin adsorption method, the liquid-liquid countercurrent distribution chromatography, the supercritical fluid extraction method or the column chromatography, or the free combination of the methods. The total flavonoids of hovenia acerba is prepared from any one part of hovenia acerba, such as fruit stems, fruits, seeds, seed-cases, roots, stems, leaves, flowers, branches, skins, skin and fruit residues, etc., and the combination thereof. The prepared total flavonoids is a combination of various flavonoid active components, wherein the total flavonoids comprises the main active components as follows: quercetin, kaempferol, (+)-dihydromyricetin, myricetin, north hovenia acerba alcohol, (+)-pyrocatechin, hovenia acerba I, hovenia acerba II, hovenia acerba III and the derivates thereof; the total percentage composition of various flavonoid components by the weight is 5% to 100%; and the preparation method is applicable to pharmaceutical industry, food industry, cosmetic industry and health-care product industry.

The invention provides a preparation method of haematococcus pluvialis extracts, a test method and application thereof. The preparation method of the haematococcus pluvialis extracts provided by the invention is a supercritical fluid extraction method using CO2 as extraction media. In the haematococcus pluvialis extracts prepared according to the method, the content of the astaxanthin can reach 2to 20 percent (w/w). The method provided by the invention has the characteristics of simple operation, low energy consumption, controllable quality and the like, the extracts also comprise various nutrient contents necessary for human bodies besides the functional ingredient of the astaxanthin, the haematococcus pluvialis extracts with high quality can be produced, and the raw material requirements required by medicine, health care food and ordinary food production can be met.

The invention relates to vegetable oil products, including palm oil products, containing one or more constituents from a group which includes monoacylglycerols, diacylglycerols, triacylglycerols, carotenes, tocols, phytosterols, squalene and free fatty acids, from vegetable oil sources and a process for the production thereof by using supercritical fluid extraction.

The process of separating capsorubin and capsaicine from hot pepper includes first extraction of capsorubin and capsaicine from hot pepper material with high concentration alcohol, decompression distillation and concentration to obtain oily coarse capsorubin and capsaicine product, and supercritical fluid extraction to separate capsorubin and capsaicine with different dissolubility in CO2. The process can obtain capsorubin and capsaicine with high purity, no residual solvent and no bad smell simultaneously. The process is simple, economic, easy in operation and suitable for industrial production. Capsorubin is used in food pigment, cosmetics and health food, and capsaicine is used in medicine.

The invention discloses a method for treating oily sludge through the multistage extraction-splitting coupling of a supercritical fluid. Oily sludge is subjected to harmless treatment and resource utilization by using oily sludge reduction, hardening and tempering, flash evaporation, multistage supercritical fluid extraction-supercritical water-splitting coupling technologies, wherein light oil components can be obtained by flash evaporation, heavy oil, high phenols and polycyclic aromatic hydrocarbon can be obtained by various supercritical fluid gradient extractions, residual heavy colloids and asphaltene in oily sludge are split into propylene, butylene, light oil and heavy oil components by supercritical water-splitting, and the heavy oil components are utilized against by supercritical fluid extraction. The method disclosed by the invention can carry out system separation and comprehensive utilization on oily sludge; required equipment scale is small, industrial amplification is relatively easy; treated oily sludge is relatively high in organic matter removal rate, can reach landfill standards, and is high in treatment efficiency; and compared with traditional oily sludge treatment methods, the method can maximally recover petroleum resources, therefore, the method has a relatively high industrial economic value, and remarkable economic and environment-friendly comprehensive benefits.

The invention discloses a lycopene microcapsule prepared by adopting a double-coating method and a preparation method thereof. An appropriate mixed wall material is adopted, an optimal emulsification condition and a drying technological parameter are researched, a supercritical fluid extraction technology and a superhigh-pressure isomerization treatment technology are combined, a double-coating method is adopted for preparing the lycopene microcapsule, a process for preparing the double-coated lycopene microcapsule adopts porous starch with the usage amount of 0.16% and beta-cyclodextrin with the usage amount of 0.16%, adsorption temperature is 50 DEG C, and adsorption time is 30 minutes; lycopene is closed in a capsule and isolated with the external environment, so that stability to light and oxygen is improved, serviceable range is expanded, the technical bottleneck existing in application of lycopene at present is effectively overcome, ratio of cis-isomer in the prepared lycopene microcapsule is 45-50%, and bioavailability is high; embedding rate can be 97.75%, lycopene carrying capacity is 40.70mg/g, and the lycopene microcapsule has strong practicability and high application value.

The invention discloses a method for extracting total flavonoids of hovenia dulcis. The method adopts the solvent extraction method and one optional method of the solvent extraction method, the macro-porous resin adsorption method, the supercritical fluid extraction method, the column chromatography or liquid-liquid countercurrent distribution chromatography, or the free combination of the methods. The total flavonoids of hovenia dulcis is extracted from any one part of hovenia acerba, such as fruit stems, fruits, seeds, seed-cases, leaves, flowers, roots, stems, branches, skins and fruit residues, etc., or the combination thereof and is further separated and purified. The prepared total flavonoids is a combination containing two or more flavonoid active components, wherein the total flavonoids comprises the main active components as follows: quercetin, kaempferol, myricetin, (+)-dihydromyricetin derivates, etc.; the total percentage composition of various flavonoid components by weight is 12% to 100%; and the preparation method is applicable to pharmaceutical industry, food industry, cosmetic industry and health-care product industry.

The invention belongs to the technical field of cigarette production, and particularly relates to a cigarette tar-reducing harm-reducing process, which includes placing tobacco shred or tobacco leaf in a rotating device for supercritical fluid extraction, and treating the extracted tobacco shred or tobacco leaves by microwave or hot air at 80 DEG C-150 DEG C after extraction. By the cigarette tar-reducing harm-reducing process, main aromatic ingredients of the tobacco leaf are maintained, and nicotine or other harmful ingredient precursors in the tobacco leaf are selected lowered. By the cigarette tar-reducing harm-reducing process, cigarette quality can be improved, release amount of tar and harmful ingredients in cigarette smoke can be reduced, and cigarette safety can be improved.

The present invention relates to a texturized whey protein composition having enhanced functional properties, including, for example, enhanced viscosifying properties, enhanced emulsifying properties, and/or enhanced gelling properties. In one embodiment, the texturized whey protein composition is a supercritical fluid extrusion product derived from whey protein. The present invention also relates to a process for preparing the texturized whey protein composition, where the process involves a supercritical fluid extrusion process. The present invention further relates to various products containing the texturized whey protein composition.