Carotene Or Derivative Patents (Class 585/351)
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Patent number: 5510551Abstract: A carotenoid-enriched fraction is extracted from natural sources, such as carrots, by (i) separating the carotenoid-containing natural source into a carotenoid-containing liquid fraction and a pulp fraction, (ii) adding a carotenoid precipitation agent including calcium chloride, calcium hydroxide, calcium lactate or calcium gluconate to the liquid fraction to form a carotenoid-enriched solid precipitate, and (iii) separating the carotenoid-enriched solid precipitate from the carotenoid-depleted liquid portion.Type: GrantFiled: April 28, 1994Date of Patent: April 23, 1996Assignee: Humanetics CorporationInventors: Frederic A. Graves, Daniel D. Gallaher
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Patent number: 5453447Abstract: A process for the continusous preparation of Beta-carotene together with an emulsifier by briefly heating Beta-carotene together with an emulsifier to give a homogeneous solution, rapidly cooling the latter to below 100.degree. C. by adding water, and subsequently adjusting to the required final concentration of Beta-carotene, comprises pumping a suspension, which has been preheated from 20.degree. to 80.degree. C., of 1 to 40% by weight of Beta-carotene in an emulsifier through a heating coil located in a heat transfer oil, where the solubilization mixture is at from 120.degree. to 180.degree. C. and the residence time is from 10 to 300 seconds, and subjecting the homogenous solution to turbulent mixing in a mixing chamber with an amount of water at from 10.degree. to 80.degree. C. to result in a solubilizate which contains from 0.5 to 6% by weight of Beta-carotene and is, if necessary, diluted to the required final concentration.Type: GrantFiled: October 1, 1991Date of Patent: September 26, 1995Assignee: BASF AktiengesellschaftInventors: Lutz End, Dieter Horn, Erik Lueddecke, Jachim U. Schneider, Peter P. Hoppe, Friedrich-Wilhelm Rensmann
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Patent number: 5453565Abstract: A novel strain of Adonis aestivalis having an average of 18-22 petals per flower head and containing an average of 200-350 .mu.g of astaxanthin pigment per flower head is cultivated, harvested and extracted to provide a source of natural astaxanthin. The extracted astaxanthin, or the harvested astaxanthin-containing plant material, can be used for example in salmonid fish diets to promote correct flesh pigmentation of the fish.Type: GrantFiled: October 11, 1994Date of Patent: September 26, 1995Assignee: Unilever Patent Holdings B.V.Inventor: Rodney Mawson
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Patent number: 5424478Abstract: The present specification relates to an industrially advantageous process for producing vitamin A derivatives which are useful as medicaments, feed additives, food additives and the like. The process provides vitamin A derivatives, particularly all-trans vitamin A derivatives in high yield and purity.Type: GrantFiled: March 22, 1994Date of Patent: June 13, 1995Assignee: Takeda Chemical Industries, Ltd.Inventors: Mitsutaka Tanaka, Tadashi Hanaoka, Kunio Takanohashi
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Patent number: 5382732Abstract: A process of preparing symmetric C.sub.40 -carotenoids by reacting a C.sub.15 -triphenylphosphonium salt of the formula ##STR1## and a 2,5-bis(1,1-dialkoxy-2-propyl)-2,5-dihydrofuran to form a reaction product containing a diacetyl and a triphenylphosphonium salt, adding a strong base to the reaction product to convert the triphenylphosphonium salt to a carbenium ion, hydrolyzing the diacetyl to a dialdehyde, subjecting the dialdehyde and the carbenium ion to a Wittig reaction to prepare a Wittig reaction product, and converting the Wittig reaction product to the C.sub.40 -carotenoid by acid treatment.Type: GrantFiled: May 27, 1993Date of Patent: January 17, 1995Assignee: BASF AktiengesellschaftInventors: Juergen Frank, Udo Rheude, Bernhard Schulz, Joachim Paust, Eckhard Hickmann
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Patent number: 5245095Abstract: A carotenoid-enriched fraction is extracted from natural sources, such as carrots, by (i) separating the carotenoid-containing natural source into a carotenoid-containing liquid fraction and a pulp fraction, (ii) adding a carotenoid precipitation agent including calcium chloride, calcium hydroxide, calcium lactate or calcium gluconate to the liquid fraction to form a carotenoid-enriched solid precipitate, and (iii) separating the carotenoid-enriched solid precipitate from the carotenoid-depleted liquid portion.Type: GrantFiled: April 12, 1991Date of Patent: September 14, 1993Assignee: Humanetics CorporationInventors: Frederic A. Graves, Daniel D. Gallaher
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Patent number: 5185468Abstract: Provided is a novel process for readily producing .beta.-carotene by reacting a sulfone compound represented by the general formula (1), (2) or (3) with an alkali, ##STR1## wherein R represents a phenyl group which may be substituted, R' a protecting group of acetal type and X a halogen atom.Type: GrantFiled: May 28, 1991Date of Patent: February 9, 1993Assignee: Kuraray Company Ltd.Inventors: Toshiki Mori, Hiroshi Fujii, Takashi Onishi, Kazuo Yamamoto
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Patent number: 5157132Abstract: A process and apparatus is disclosed for separation of fatty acid alkyl esters, carotenoids and tocotrienols from oil. Fatty acids in a vegetable oil are subjected to alcoholic esterification to form an ester-rich layer including fatty acid alkyl esters, carotenoids and tocotrienols. The ester-rich layer is exposed to solvolytic micellization to form a carotenoid-rich layer. The ester-rich layer is separated from the carotenoid-rich layer. The carotenoids in the carotenoid-rich layer are concentrated and can be adsorptively separated from the carotenoid-rich layer. Fatty acid alkyl esters are separated from the ester-rich layer to form a tocotrienol-rich layer. Individual tocotrienols in the tocotrienol-rich layer are adsorptively separated and concentrated.Type: GrantFiled: May 18, 1990Date of Patent: October 20, 1992Assignee: Carotech AssociatesInventors: Barrie Tan, Mohammed H. Saleh
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Patent number: 5061819Abstract: Processes for synthesizing novel phosphonate diester compounds of the general formula ##STR1## are disclosed and claimed. The claimed process includes forming a reaction mixture of a C-14 aldehyde and a methylene-bis-phosphonic acid ester, separating a pentadienyl phosphonic acid dialkyl ester intermediate from the reaction mixture, optionally isomerizing the intermediate in the presence of a basic catalyst, and isolating the desired pentadienylphosphonic acid dialkyl ester compound. The isolated phosphonate compounds made according to the processes of the present invention may be employed in synthesizing retinoids such as retinoic acid or carotenoids such as beta-carotene.Type: GrantFiled: February 5, 1990Date of Patent: October 29, 1991Assignee: Loyola University of ChicagoInventor: James H. Babler
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Patent number: 4916250Abstract: Novel phosphonate compounds of the formula ##STR1## are disclosed and claimed, as well as methods for manufacturing the phosphonates from C-14 through C-16 aldehydes. The phosphonate compounds of the present invention can be employed to form 13-cis retinoic acid, retin-A and beta-carotene.Type: GrantFiled: October 31, 1988Date of Patent: April 10, 1990Assignee: Loyola University of ChicagoInventor: James H. Babler
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Patent number: 4506096Abstract: 2-Alkyl-2,4-diacyloxy-but-3-enals of the formula ##STR1## where R.sup.1 is alkyl and R.sup.2 is hydrogen, alkyl, a cycloaliphatic radical or an aromatic radical, are prepared by reacting a buta-1,3-diene of the formula ##STR2## with an oxygen donor. The new compounds are valuable intermediates in the preparation of terpenes, e.g. retinal, .beta.-carotin and apocarotinoids.Type: GrantFiled: March 10, 1983Date of Patent: March 19, 1985Assignee: BASF AktiengesellschaftInventors: Hans-Martin Weitz, Rolf Fischer, Joachim Paust
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Patent number: 4439629Abstract: A process for extracting either or both beta-carotene or glycerine from algae containing these substances, especially from algae of the genera Dunaliella.Type: GrantFiled: November 6, 1981Date of Patent: March 27, 1984Assignee: Hoffmann-La Roche Inc.Inventor: Rudolf Ruegg
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Patent number: 4336201Abstract: A process for the preparation of an electrically conductive polyene, wherein a polyene which contains one or more chain members of the formula where R is hydrogen or methyl, and which contains a total of not less than seven aliphatic double bonds, is treated, in the absence of moisture and of oxygen, with a strong Lewis acid having a pk.sub.a of from -10 to +4, or with an alkali metal.Type: GrantFiled: November 3, 1980Date of Patent: June 22, 1982Assignee: BASF AktiengesellschaftInventors: Franz Feichtmayr, Herbert Naarmann, Joachim Paust, Klaus Penzien
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Patent number: 4331814Abstract: Sulphones useful for preparing polyenes have the formula: ##STR1## where the sulphonyl group replaces a hydrogen atom on carbon atom (a) or (b), R represents alkyl, aralkyl or aryl, optionally substituted, A and Q represent an optionally substituted hydrocarbon of 5n+1 carbon atoms (n is 1-5), methyl, optionally substituted by halogen, sulphide or sulphone, CH.sub.2 OH (or an ether or ester thereof), CHO (optionally protected), COOH (or an acid chloride, ester or nitrile thereof), with the proviso that when A represents a 2-(2,6,6-trimethylcyclohex-1-enyl) ethenyl radical, Q cannot represent --COOH or an ester thereof.Type: GrantFiled: February 1, 1973Date of Patent: May 25, 1982Assignee: Rhone Poulenc S.A.Inventors: Pierre Chabardes, Marc Julia, Albert Menet
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Patent number: 4225734Abstract: A process for the production of symmetrical olefins is provided comprising the reductive coupling of ketones and aldehydes with reactive Ti(II) and/or Ti(O) species.Type: GrantFiled: August 8, 1978Date of Patent: September 30, 1980Assignee: The Regents of the University of CaliforniaInventor: John E. McMurry
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Patent number: 4175205Abstract: Vitamin A alcohol and its lower alkanoic esters are prepared by desulphonation of corresponding sulphones with a solid potassium alcoholate of a primary or secondary lower alcohol at 10.degree. to 50.degree. C. in an anhydrous liquid hydrocarbon.Type: GrantFiled: July 25, 1977Date of Patent: November 20, 1979Assignee: Rhone-Poulenc IndustriesInventor: Jean-Pierre Decor