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7279184 |
Methods and compositions comprising Ilex
The present invention comprises methods for making compositions derived from Ilex species, particularly Ilex paraguariensis , having lowered caffeine and tannin concentrations, compositions made...
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7022367 |
Oolong tea beverage and process of producing the same
The oolong tea beverage is produced by a cold water treatment step of bringing raw material oolong tea leaves into contact with water adjusted at pH about 4 to 6 and 25° C. or lower, eluting and...
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6544581 |
Process for extraction, purification and enrichment of polyphenolic substances from whole grapes, grape seeds and grape pomace
The present invention provides a novel process for extraction, purification and concentration of polyphenol substances from whole grapes, grape seeds and grape pomace without the need for membrane...
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6510949 |
Filter material having adjustable wettability and method for its manufacture
The invention concerns a filter material characterized in that it is impregnated with an amphiphilic substance or with a hydrophilic and a hydrophobic substance to control the water wettability and...
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6506304 |
Method for the regeneration of supercritical extractant
A method for recovering supercritical extractant, such as supercritical CO 2 , from a mixture containing the supercritical extractant and a solute is disclosed, which includes contacting the...
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6506430 |
Oak aged alcoholic beverage extract and accelerated whisky maturation method
An extract of an oak aged alcoholic product is produced by a process using a food grade solvent or a process which does not use a food grade solvent. The process using a good grade solvent includes...
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6344226 |
Process for producing an extract of an accelerated oak aged alcoholic concentrate
An extract of an oak aged alcoholic product is produced by adding a food grade solvent, such as ethyl acetate, to the oak aged alcoholic product and mixing the two liquids. The resulting mixture is...
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6210679 |
Method for isolation of caffeine-free catechins from green tea
The process of the present invention relates to the isolation and purification of caffeine-free mixtures catechins from various different biomass sources, preferably from green tea leaves. More...
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5989557 |
Process for extracting polyphenol fractions of tea and compositions produced therewith
The present invention relates to the preparation of novel polyphenol fractions of Camellia sinensis (tea), the use thereof and formulations containing them. The invention relates specifically to...
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5827560 |
Process for producing cold water soluble tea extract
A continuous process for producing a tea extract which contains solubilized tannins and which has good color. Tea solids are extracted from tea leaves using an extraction liquid to provide a tea...
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5728634 |
Caffeine adsorbent liquid filter
An adsorbent filter for removing caffeine from liquids. The filter is composed of a liquid permeable matrix of fibrous material having individual exposed surfaces; and a distribution of adsorbent...
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5702747 |
Process for decaffeinating aqueous caffeine-containing extracts
A process is described for decaffeinating caffeine-containing aqueous extracts with which the caffeine is extracted selectively with activated carbon fibers.
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5658571 |
Process for extraction and use of fenugreek (Trigonella foenumgraecum)
A process for preparing debitterised powder of the seed of the plant Fenugreek (Trigonella Foenumgraecum). The debitterised powder of the seed and formulations containing the debitterised powder of...
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5603830 |
Caffeine adsorbent liquid filter with integrated adsorbent
An adsorbent filter for removing caffeine from liquids. The filter is composed of a matrix of fibrous material; and adsorbent particulate material integrated within the matrix of fibrous material,...
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5490884 |
Method and system for extracting a solute from a fluid using dense gas and a porous membrane
This invention is directed to a method and system for extracting a solute from a fluid or a dense gas using a porous membrane. The invention includes providing a porous membrane having opposite...
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5338575 |
Process for the quasi-continuous decaffeination of raw coffee
A process for decaffeinating raw coffee by selective extraction of the caffeine by means of a solvent that is liquid under normal conditions. Raw coffee beans are extracted for between one and...
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5288511 |
Supercritical carbon dioxide decaffeination of acidified coffee
The present invention provides a method of decaffeinating green coffee beans without adversely affecting their acidity or the flavor of coffee beverages produced from them. The invention also...
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5266342 |
Method for decaffeinating coffee materials including a reverse osmosis permeate recycle
An improved method for extracting caffeine from a coffee material, preferably raw coffee solids, with an extractant comprising supercritical carbon dioxide. Caffeine is continuously absorbed from...
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5208056 |
Process for decaffeinating raw coffee
Caffeine is extracted from the raw coffee by means of an aqueous liquid and adsorbed from the latter on an adsorption agent such as activated charcoal. In order for the adsorption agent to absorb...
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5178899 |
Method for processing taste-modifier
A method for processing a taste-modifier which comprises formulating a taste-modifier comprising fresh Curculigo latifolia fruits, dried fruits thereof or a curuculin-containing material obtained...
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5153015 |
Decaffeinating coffee and tea
A process and apparatus for extracting ingredient substances from natural products by means of a pressurized fluid, particularly for decaffeinating tea leaves by means of carbon dioxide, wherein...
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5147674 |
Method for continuously decaffeinating raw coffee
A device for continuously decaffeinating raw coffee includes a first extractor having at least one cell for use in a first treatment stage where raw coffee is preswollen by a swelling fluid that is...
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5139799 |
Ultra-sonic removal of xanthines from cocoa beans
Xanthine compounds are removed from cocoa beans by subjecting a mixture of a cocoa bean feedstock and a xanthine leachant to ultrasonic radiation.
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5135766 |
Process for the decaffeination of raw coffee
A process for the decaffeination of raw coffee. The process involves increasing the moisture content of the raw coffee and selectively extracting caffeine from the raw coffee by using hydrous...
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5114728 |
Process for decaffeinating green coffee beans
A simple, reliable process for decaffeinating green coffee beans to a high degree while avoiding denaturation of the green coffee beans includes wetting the green coffee beans to a high water...
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5089280 |
Process for decaffinating green coffee beans
A simple, reliable process for decaffeinating green coffee beans to a high degree while avoiding denaturation of the green coffee beans includes wetting the green coffee beans to a high water...
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5087468 |
Process for aromatization of treated tea
Moistened black tea is decaffeinated using carbon dioxide as a solvent. The mixture consisting of caffeine, water, aroma constituents and gaseous carbon dioxide obtained in the course of the...
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5018540 |
Process for removal of basic materials
A process is provided for the selective removal of basic materials from plant products, in particular, for removing nicotine from tobacco without materially affecting the content of the other...
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5011594 |
Process for the continuous extraction of mixtures of organic substances with supercritical solvents
A process for the continuous extraction of mixtures of organic substances including high boiling point constituents and/or constituents which do not boil but which melt with at least one solvent in...
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4976979 |
Process for the decaffeination of tea
The present invention provides a process for the decaffeination of tea containing 15 to 50% by weight of water with moist carbon dioxide at 255 to 350 bar at 50° to 80° C. in a pressure vessel,...
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4956176 |
Solids-fluid contacting apparatus with screen at fluid outlet
A screen is mounted in an apparatus for contacting particulate solids with a fluid. The apparatus comprises an elongate column for holding a bed of particulate solids for contact with a fluid, the...
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4938977 |
Process for the production of decaffeinated tea
By the extraction with CO 2 at 60 to 150 bar and 20° to 70° C., an aroma enriched fraction is taken from the moistened black tea, said fraction being added again to already decaffeinated and...
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4929462 |
Method and apparatus for continuous contact of supercritical fluid with particulate solids
Method and apparatus for contacting particulate solid matter with a fluid in a pressure vessel through which the fluid continuously moves at high, supercritical, pressure while the particulate...
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4885181 |
Process for decaffeinating green coffee
A process for decaffeinating green coffee by extraction of the coffee with water and treatment of the aqueous extract with activated carbon whereby the caffeine is largely absorbed by the activated...
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4877631 |
Process for recovering caffeine absorbed in activated carbon, and a process for decaffeinating coffee
A process for recovering from caffeine-loaded activated carbon by treatment f the loaded carbon with an acid. According to the present invention, activated carbon is treated with a compound having...
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4861607 |
Removal of xanthine stimulants from cocoa
Xanthine stimulants are extracted from a cocoa material containing a fat by adding water to the cocoa material for swelling it with at least 0.1 part by weight of water per part by weight of cocoa....
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4832951 |
Method of infusion extraction
Apparatus and method of removing desirable constituents from an infusible material by infusion extraction, where a piston operating in a first chamber draws a solvent into the first chamber where...
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4820537 |
Method for decaffeinating coffee with a supercritical fluid
A method of extracting caffeine from green coffee beans whereby an essentially caffeine-free supercritical fluid is continuously fed to one end of an extraction vessel containing green coffee beans...
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4818552 |
Process for recovering caffeine adsorbed to activated carbon
This invention relates to a process for recovering caffeine from laden acated carbon by treating the laden activated carbon with an organic acid. In order to achieve good extraction efficiencies,...
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4767634 |
Coffee decaffeination with caffeic acid
A method of decaffeination wherein a caffeine-containing coffee extract solution is contacted with caffeic acid in the presence of water. The caffeine and the caffeic acid form an insoluble...
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4755391 |
Removal of methylxanthines from cacao materials
A process is disclosed for removing substantially all of the theobromine normally present in cacao beans. The process includes a water extraction of cacao nibs at from about 45° C. to about 55°...
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4728525 |
Process for the decaffeination of green coffee
An improvement in the process of decaffeinating green coffee at high pressure with moist carbon dioxide gas in the supercritical state. The decaffeination takes place in a heating profile of at...
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4714617 |
Procedure for segregation of mixture of substances containing organic components
Mixtures of substances containing organic components are segregated by extraction with a gaseous solvent in high pressure extraction. One additive component is admixed to the charged solvent,...
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4548827 |
Separate recovery of caffeine and coffee solids adsorbed on activated carbon
The present invention relates to a method of separately recovering caffeine and non-caffeine solids adsorbed on activated carbon. Activated carbon containing the adsorbed solids is contacted with...
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4547378 |
Roasted coffee extract decaffeination method
A roasted coffee extract decaffeination method providing a soluble coffee of improved flavor is disclosed. A roasted coffee extract is contacted with a caffeine solvent so that caffeine and a...
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4545998 |
Multi-phase liquid solvent decaffeination
The process disclosed herein decaffeinates an aqueous caffeine feed solution by contacting it with a multi-phase extractant which comprises a continuous phase of a liquid, water-immiscible,...
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4508743 |
Caffeine adsorption
In the decaffeination of green coffee beans with an aqueous medium, caffeine is removed from the aqueous medium which also contain non-caffeine green coffee solids, contact with substantially...
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4495211 |
Process for the decaffeination of green coffee beans
A process for the decaffeination of green coffee beans by the extraction, process stage (a), of soaked green coffee beans with an equilibrium extract of coffee beans, from which extract caffeine...
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4490405 |
Single step extraction of bitter principle and tannins from hops
A process for extracting bitter principle and tannin from hops, uses ethanol as the extracting agent in a single extraction. By controlling the water content of the ethanol used, the quantity of...
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4481223 |
Decaffeination with treated activated carbon
An aqueous coffee extract is decaffeinated with a treated activated carbon. The activated carbon is first contacted with an ethyl cellulose solution in order to adsorb the ethyl cellulose on the...
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