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| Number | Title | Issue Date |
| 8093436 | Process for synthesis of (3R,3′R)-zeaxanthin and (3R,3′S;meso)-zeaxanthin from (3R,3′R,6′R)-lutein via (3R)-3′,4′-anhydrolutein (3R,3′R,6′R)-Lutein and (3R,3′R)-zeaxanthin are two dietary carotenoids that are present in most fruits and vegetables commonly consumed in the US and accumulate in the human plasma, major organs, and ocular tissues. Another stereoisomer of (3R,3′R)-zeaxanth... | 01/10/2012 |
| 8034983 | Process for the preparation of xanthophyll crystals The invention describes the preparation and isolation of xanthophylls from plant sources, whereby a transesterification process is utilized without the necessity of an aqueous format. ... | 10/11/2011 |
| 8008532 | Processes and methods for extraction and purification of lutein from marigold esters A process is disclosed for simultaneously extracting, saponifying, and isolating lutein without the use of harmful organic solvents. In one embodiment the method includes (a) dispersing Marigold oleoresin in an alkane hydrocarbon alkanol solution, (b) adding a potas... | 08/30/2011 |
| 7943804 | Lutein extraction from ozone-treated plant sources The use of ozonation has been discovered to increase the lutein extraction from aflatoxin-free corn and for some batches of alfalfa. In addition, the ozonation will substantially decrease any aflatoxin in the plant source. The structure of lutein as indicated by HPL... | 05/17/2011 |
| 7812198 | Process for the manufacture of a composition containing at least one xanthophyll The present invention relates to a process for the manufacture of a composition containing at least one xanthophyll selected from the group consisting of lutein and zeaxanthin, said process comprising the steps of providing an extract of Marigold flower containing t... | 10/12/2010 |
| 7671242 | Isolation of aflatoxin-free lutein from aflatoxin-contaminated plants and plant products An efficient method is disclosed for extracting lutein from corn, sweet potato, and other plant products, and for extracting aflatoxin-free lutein from aflatoxin-contaminated plant grains and other plant products safely without any toxic by-products. The lutein is e... | 03/02/2010 |
| 7507865 | Method for obtaining calcipotriol hydrate Procedure to obtain the hydrate of calcipotriol. A procedure is described, used to obtain the hydrate of calcipotriol, which consists of the reaction of anhydrous calcipotriol in water, in the absence of organic solvents. ... | 03/24/2009 |
| 7390869 | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species A process for removing metal species from a composition comprising contacting: a. an oligomer mixture stream comprising the monomers of a partially aromatic polyester polymer and at least one metal species, or b. a... | 06/24/2008 |
| 7368613 | Sandal fragrances A compound of formula (Ia) or (Ib), wherein in each of formulae (Ia) and (Ib) R1 and R2, independently of one another, are H or CH3, and the use thereof as a sandalwood fragrance. ... | 05/06/2008 |
| 7321068 | Method for producing tricyclodecandialdehyde Process for preparing tricyclodecanedialdehyde by hydroformylation of dicyclopentadiene by means of a CO/H2 mixture at elevated temperature and under superatmospheric pressure in the presence of a rhodium catalyst which has not been modified by means of a... | 01/22/2008 |
| 7301057 | Process for preparing TCD-alcohol DM The present invention relates to a process for preparing 3(4),8(9)-dihydroxymethyltricyclo[5.2.102.6]decane by hydrogenating the hyd roformylation products of d icyclopentad lene. The process comprises carrying out the hydrogenation in the presence of wat... | 11/27/2007 |
| 7271298 | Process for isolation and purification of xanthophyll crystals from plant oleoresin A process for isolation and purification of xanthophylls crystals from plant oleoresin is disclosed. The organic solvents involved in the process is no other than food grade alcohol. The process includes saponifying the plant oleoresin containing xanthophyll diester... | 09/18/2007 |
| 7253294 | Isolation of lutein from alfalfa The present invention provides a process for an industrial scale extraction and purification of xanthophylls (e.g., lutein and zeaxanthin) from plant material (e.g., alfalfa or other leafy green crops having high levels of chlorophyll). The process involves harvesti... | 08/07/2007 |
| 7214379 | Method for the purification of marigold oleoresin Marigold oleoresin having a low viscosity and a high lutein content which can be filled in soft capsules can be obtained according to the method of the present invention, which is characterized by combining a step of subjecting oleoresin to supercritical fluid extra... | 05/08/2007 |
| 7150890 | Process for the purification of marigold xanthophylls Description of a process to extract, saponify and purify lutein and zeaxantine contained in Marigold flowers free from any genetic manipulation, which have been harvested by hand and dried upon weather so that it neither contains epoxicarotenoids or cis-carotenoids.... | 12/19/2006 |
| 7138152 | Process for extracting carotenoids from fruit and vegetable processing waste A process of extracting carotenoids from a source of fruit or vegetable processing waste including the steps of: admixing the source, a first organic solvent and a surfactant to form a slurry, whereby surface tension in tissue cell structure of the source is decreas... | 11/21/2006 |
| 7115786 | Method for production of β-cryptoxanthin and α-cryptoxanthin from commercially available lutein The present invention relates to a method of reacting (3R,3′R,6′R)-lutein with a catalytic amount of an acid to obtain a mixture of anhydroluteins, rich in anhydrolutein III, with substantially no Z-isomers being formed. The mixture is converted to (3R)-β-crypt... | 10/03/2006 |
| 7067615 | Hydrotreating polyester precursors A process comprising contacting a liquid polyester stream with hydrogen in the presence of a hydrogenation catalyst comprising a metal supported on the surface of silicon carbide at a metal dispersion of at least 0.5% or graphite at a metal dispersion of at least 10... | 06/27/2006 |
| 6911564 | Method for production of rare carotenoids from commercially available lutein Disclosed are processes for conversion of (3R,3′R,6′R)-lutein to (3R,6′R)-α-cryptoxanthin, (3R)-β-cryptoxanthin, anhydroluteins I, II, and III (dehydration products of lutein), and a method for separating and purifying the individual carotenoids including th... | 06/28/2005 |
| 6909021 | Method of extracting lutein from green plant materials The present invention provides a method for extracting carotenoids from green plant materials using supercritical fluid extraction. A first and second supercritical fluid extraction is performed on the green plant composition at two different pressures to obtain two... | 06/21/2005 |
| 6867335 | Uncatalysed addition reactions The present invention relates to process wherein (+)-2-carene epoxide is coupled with a compound X—Y that contains nucleophilic and electrophilic moieties, to produce a compound of formula (5). The reaction mixture consists essentially of a source of (+)-2-carene ... | 03/15/2005 |
| 6818798 | Process for making a (3R,3′R)-zeaxanthin precursor A process for the conversion of (3R,3′R,6′R)-lutein to 3′-epilutein, a carotenoid precursor for industrial production of naturally occurring (3R,3′R)-zeaxanthin, is disclosed. ... | 11/16/2004 |
| 6743953 | Process for the preparation of xanthophyll crystals The invention disclosed in this application relates to a process for the preparation of xanthophyll crystals containing at least 85% total xanthophylls with at least 90% trans-lutein and/or zeaxanthin, trace amounts of cis-lutein and other carotenoids which comprise... | 06/01/2004 |
| 6737552 | Method for extracting lutein from green plant materials The present invention provides a method for extracting carotenoids from green plant materials using supercritical fluid extraction. A first and second supercritical fluid extraction is performed on the green plant composition at two different pressures to obtain two... | 05/18/2004 |
| 6639113 | Production of dry powders of one or more oxygenated carotenoids A process is described for preparing dry powders of one or more oxygenated carotenoids by a) dispersing one or more oxygenated carotenoids in an aqueous molecular dispersion or colloidal dispersion of a protecting colloid and b) converting the dispersi... | 10/28/2003 |
| 6576787 | Hydroxymethyl-group-containing alicyclic compound and process for producing the same Hydroxymethyl-group-containing alicyclic compounds that are useful for making photosensitive resins and other functional polymers. Processes for producing the hydroxymethyl-group-containing alicyclic compounds. Polymerizable alicyclic compounds. The alicy... | 06/10/2003 |
| 6562782 | Oligocycloalkanoid compounds and methods of use The present invention related to an oligocycloalkanoid compound comprising formula (I) ##STR1## wherein m, n, and o are independently an integer from 0 to 2; A1 through A10 are independently a direct link, alkylene, alkylene-O--, ... | 05/13/2003 |
| 6548715 | Structural analogues of vitamin D A compound of the formula I: ##STR1## in which P is hydrogen or alkyl; Y and Y' are each hydrogen or, when taken together, represent a group .dbd.CH2 ; W and W' are each hydrogen; X is selected from the group consisting of a hydroxyalkyl, a hydroxya... | 04/15/2003 |
| 6504067 | Process to obtain xanthophyll concentrates of high purity An industrial process to obtain xanthophyll concentrates of high purity from plant extracts, comprising: refining the plant extracts by treating them with a diluted alkali, followed by treating them with a diluted organic or inorganic acid in order to eli... | 01/07/2003 |
| 6420614 | Process for obtaining 3'-epilutein A process for obtaining 3'-epilutein, by epimerization of a lutein-containing extract with an aqueous solution of a strong organic acid which is slowly added under agitation at room temperature, in the presence of an organic aprotic media, to obtain 3'-ep... | 07/16/2002 |
| 6380442 | Process for the isolation of mixed carotenoids from plants A practical and effective process for isolating and purifying mixed carotenoids containing higher concentrations of specific compounds, such as all-trans lutein, without the use of harmful organic solvents, is disclosed. The process employs hydrolysis of ... | 04/30/2002 |
| 6376722 | Lutein to zeaxanthin isomerization process and product A lutein to zeaxanthin isomerization process which includes a saponification or alkali treatment of a plant extract containing lutein followed by a heating period under controlled conditions, is carried out in the presence of a surface active agent having... | 04/23/2002 |
| 6353141 | Functionalized cyclopentene-derived oligomer mixtures, their preparation and their use Functionalized cyclopentene-derived oligomer mixtures are prepared by reacting oligomer mixtures which contain ethyleneic double bonds in one or more reaction steps starting from cyclopentene-derived oligomer mixtures of the formula I R1 R... | 03/05/2002 |
| 6329557 | Purification of xanthophylls from marigold extracts that contain high levels of chlorophylls The present invention provides an industrial scale process for obtaining lutein and zeaxanthin concentrates of high purity from saponified marigold extracts that may have high levels of chlorophyll.... | 12/11/2001 |
| 6262316 | Oral preparation for the prophylactic and therapeutic treatment of Helicobacter sp. infection An oral preparation for the prophylactic and/or therapeutic treatment of inflammation in the mucous membrane of mammalian gastrointestinal tract (especially the human stomach) caused by Hicobacter sp. (especially H. pylori) infection is described. The pre... | 07/17/2001 |
| 6191293 | Trans-xanthophyll ester concentrates of enhanced purity and methods of making same Trans-xanthophyll ester concentrates having a trans-xanthophyll ester content of at least four times greater and preferably at least nine times greater than the cis-xanthophyll ester content are obtained. Xanthophyll ester concentrates having a total xant... | 02/20/2001 |
| 6169217 | Method for extracting xanthophylls from corn The method of the invention uses raw corn, or a corn by-product as a source. The source is mixed with an alcohol to produce an alcohol-corn slurry. Centrifugation or filtration produces a clear filtrate from the alcohol-corn slurry. A membrane filtration ... | 01/02/2001 |
| 6162954 | Odorants The invention relates to compounds of the general formula ##STR1## in which R1 to R7 are, independently, H, methyl or ethyl, R8 +R9 together form methylene (--CH2 --) or a single bond, or R1... | 12/19/2000 |
| 6025531 | Processes for preparing optically active alcohols and optically active amines A process for preparing an optically active alcohol by reacting a prochiral ketone corresponding to the optically active alcohol and an acid with a mixture of (1) a boron-containing compound selected from the group consisting of i) a borane compound which... | 02/15/2000 |
| 5998678 | Process for preparing carotenoid pigments A process for the preparation of the carotenoid Zeaxanthin by isomerization and optional hydrolysis of a carotenoid precursor with an alkaline reagent in a polar organic solvent selected from the group consisting of an ether, polyhydroxyl alcohol, an ethe... | 12/07/1999 |
