Henkel Kommanditgesellschaft Auf Aktien

Cognis IP Management Gmbh

Henkel Corporation

Cognis Deutschland Gmbh & Co. Kg

Universidad De Sevilla

Wilhelm Johannisbauer

Lutz Jeromin

Bernhard Gutsche

Reinhold Sedelies

Michael Nitsche

Albrecht Weiss

Volkmar Jordan

Manfred Lindemann

Irina Obraztsova

Otto Michel

Baldomero Cordero

Juergen Plachenka

Herbert Wogatzki

Herminia Rodriguez

Franz-Josef Carduck

Georg Assmann

Theo Fleckenstein

Eberhard Peukert

Tracy K Hunt

Levent Yueksel

Erich Reuter

Andreas Sander

Albrecht Schwerin

Jean Rigal

Katrin Burmeister

Kenneth R McVay

Rene Armengaud

Karl-Heinz Buettgen

Dennis G Gaige

Horst Josten

Hermann Koerner

Bernard Cormary

Richard Ridinger

Guenter Wozny

Friedrich Hommers

Harald Roessler

Karl Hentschel

Magnus Topphoff

Angeles M Vargas

Lucia Martin

Franjo Skrapac

Helmut Hartmann

Rolf Brockmann

Klaus Thorausch

Heike Fleischmann

Helmut Meyer

Volkmar Jordon

Gerd Geobel

Stefan Blum

Bernd Holfoth

Heinrich Moormann

Gerd Matrong

Gerhard Dieckelm

Georg Fieg

Christiane Richard-Elsner

M Angeles Vargas

Martin Lucia

Baldomero F Cordero

MAngeles Vargas

Pulz Otto

Horst Franke

The present invention pertains to a method for the efficient production of carotenoids. In particular, the present invention is directed to a method for producing carotenoid and carotenoid-containing cells, especially astaxanthin and astaxanthin-containing cells, by generating mutant microorganisms belonging to the photoautotrophic algae of the Class Chlorophyceae and culturing same. The present invention further relates to methods of generating microorganisms producing high yields of carotenoids, in particular astaxanthin, products containing said microorganisms or said carotenoids, and the use of said carotenoids produced by the microorganisms according to the present invention and deposited mutant strains generated from said microorganisms.

[object Object]

A process of obtaining lutein in a high yield from green algae is described. Lutein and lutein-enriched products obtained by the process, which are suitable for use as dietary supplements and/or food additives, or cosmetic or pharmaceutical raw materials, are also described.

Process for obtaining lutein from algae

A process for reducing the odor of an oil. The oil being treated is first distilled by a carrier vapor or carrier gas distillation to form a distilled oil. The distilled oil is then contacted with a polymeric adsorbent; whereby the odor of the oil is reduced. The polymeric adsorbent is regenerated. The polymeric adsorbent can be a cross-linked polymer with an internal surface area of from 900 to 1500 m/gram.

Reducing the odor of oil components by means of adsorption with polymeric adsorbing agents

Processes for separating supercritical or near-critical mixtures containing hydrogen, a solvent gas, methanol and a fatty alcohol under an initial pressure of from 100 to 300 bar are described, wherein the processes comprise: (a) reducing the pressure of such a mixture in a first stage to a pressure of from 50 to 150 bar to form a first recycle gas and a first partially-separated intermediate mixture, wherein the reduced pressure in the first stage is at least below the initial pressure; (b) reducing the pressure of the first partially-separated intermediate mixture in a second stage to a pressure of from 10 to 50 bar to form a second recycle gas and a second partially-separated intermediate mixture; and (c) reducing the pressure of the second partially-separated intermediate mixture in a third stage to a pressure of from 1 to 10 bar to form a third recycle gas and a fatty alcohol product.

Three stage processes for the separation of supercritical or near-critical mixtures

Pure azelaic acid is obtained by working up a reaction mixture containing C.sub.1-18 monocarboxylic acids, mainly pelargonic acid, and C.sub.4-16 dicarboxylic acids, mainly azelaic acid, obtained from the ozonolysis of oleic acid or a starting mixture containing oleic acid. All but &lt;2% by weight of the monocarboxylic acids and part of the dicarboxylic acids with a chain length of &lt;C.sub.9 and &gt;C.sub.9 are separated off to obtain a prepurified product containing more than 75% by weight of oleic acid and the prepurified product is concentrated to more than 90% by weight of oleic acid in several process steps. In a first process step (1), the dicarboxylic acids with chain lengths of &lt;C.sub.9 present in the prepurified product are removed as first runnings by fractional distillation. In a second process step (2), the bottom product obtained is reacted with water to split carboxylic anhydrides present in the bottom product. In a third process step (3), the reaction mixture is subjected to overhead distillation. The third process step (3) is carried out after or at the same time as the second process step (2). The product yield is improved. The process is particularly suitable for working on an industrial scale.

Process for concentrating azelaic acid

Process for obtaining carotene from palm oil

Process for cleaning the waste gas from drying processes using heated gas

Aliphatic alcohols with up to 30 and especially with 6 to 18 carbon atoms are separated from a mixture of alkyl glycosides and alcohols which are unreacted during the production of these glycosides, by single or multi-stage distillation. The alcohols are distilled off by a drop film evaporator to impoverish the reaction mixture to residual alcohol contents of 5 wt % and under. The strip load of the drop film evaporator is set to at least 1.0 m.sup.3 /h m, especially at least 1.8 m.sup.3 /h m and preferably at least 3.0 m.sup.3 /h m. It is possible to reduce the alcohol content of the product to any value between 0.1 and 5 wt % at acceptable overall cost.

Process for the separation of alcohols by distillation

Starting from a mixture containing tocopherol, fats and/or fat derivatives, more particularly fatty acids, and optionally sterol and/or sterol derivatives, the free fatty acids present in the mixture are esterified with an alcohol. The mixture is then transesterified with an alcohol in the presence of a basic catalyst. After the transesterification, the excess lower alcohol is distilled off from the reaction mixture. The transesterification catalyst and the glycerol present, if any, are removed and the fatty acid alkyl ester is distilled off from the mixture. Distillation of fatty acid alkyl esters can be accomplished with a packed column in sequence with a wiped film evaporator. The simultaneous recovery of tocopherol and sterol is possible. Tocopherols and sterols can be separated by the crystallization of sterols from a blend of organic solvents.

Recovery of tocopherols

Recovery of tocopherol and sterol from tocopherol and sterol containing

The glycerol water (sweet water) accumulating in the high-pressure hydrolysis of natural fats and oils with steam into fatty acid and glycerol is continuously purified. Fats larger than 100 .mu.m in diameter are separated from the aqueous phase in a plate-type phase separator and are returned to the high-pressure hydrolysis process. The aqueous phase thus prepurified is passed through a cross-flow filtration membrane, more particularly a microfiltration membrane, and the concentrate is returned to the entrance of the plate-phase separator. Large product streams of glycerol water can be purified continuously, effectively and particularly economically despite frequent changes of provenance.

Process for the purification of glycerol water

The invention relates to a process for the removal of alcohols containing up to 30 and, more particularly, between 8 and 18 carbon atoms by distillation from a mixture of alkyl glycosides and alcohols remaining unreacted in the production of these alkyl glycosides, the alcohols being removed in two stages, a falling-film evaporator being used in the first stage and a thin-layer evaporator being used in the second stage.

Process for the removal of alcohols

Process for the separation of two liquid immiscible organic components

Process for the acid-catalyzed hydrolysis of fatty acid glycerides, wherein the process is carried out continuously with the glyceride and the water being moved countercurrent to each other, and apparatus therefor.

Process for the acid-catalyzed cleavage of fatty acid glycerides and

The invention relates to a process, more especially a discontinuous process, for conducting a reaction taking place at elevated temperature in which heat-sensitive products are formed. To increase the volume-time yield, a heat transfer unit independent of the reactor is used for heating. The invention also relates to an apparatus for the production of heat-sensitive products at elevated temperatures. This apparatus comprises a reactor and a heating system. To increase the volume-time yield, the heating system comprises at least one heat transfer unit arranged outside and connected to the reactor.

Process and apparatus for making a heat-sensitive material

Growing community of inventors

Erkrath, Germany

Wilhelm Johannisbauer