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Joachim U Schneider

Joachim Paust

Hagen Jaedicke

Wolfgang Bewert

Horst Schumacher

Hans Kiefer

Bernhard Schulz

Udo Rheude

Paul Grafen

Peter Paul Hoppe

Hubert Tiefenbacher

Gerhard Schwarz

Wolfgang Buehler

Chiharu Fukamachi

Guenter Gaus

A process for preparing stable dry powders which are insoluble in hot water and which contain fat-soluble vitamins and/or carotenoids, which comprises the following steps:

Stable vitamin and/or carotenoid products in powder form, and the

A device for manometric measurement of the oesophagus has a catheter with a pressure sensor and a recording unit with a light source for monochromatic and coherent light, and a counting unit for light pulses. The pressure sensor is constructed as a Fabry Perot measuring section and has a pliable optical fiber embedded in elastic base material. The optical fiber is connected via a fiber-optic light guide to the recording unit (3). One end (6) of the optical fiber (5) is metal-coated and the other end (7) is partially metal-coated and connected to the fiber-optic light guide (8). The fiber-optic light guide (8) conveys not only the light from the light source to the optical fiber but also the light pulses from the optical fiber to the counting unit.

Device for manometric measurement of the esophagus

Pulverulent products composed of a water-insoluble core substance and of a protective covering, are obtainable by

Pulverulent products composed of a water-insoluble core substance and of

Powdered and/or granulated menadione sodium bisulfite formulations additionally contain a physiologically tolerated organic or inorganic acid. The novel formulations possess good water solubility and stability.

Stabilized menadione bisulfite formulations and their preparation

A stable mixture of an oxidation-sensitive compound contains triglycerides, complexing agents and coating substances as well as the oxidation-sensitive compound.

Stable mixture containing oxidation-sensitive compounds, preparation

A novel bisulfite adduct of menadione, the menadione choline bisulfite adduct, a process for its preparation, and its use as an antihemorrhagic agent.

Menadione choline bisulfite adduct, its preparation and antihemorrhagic

A process for the preparation of .beta.-carotene micellar solutions, wherein a non-ionic emulsifier which is suitable for the preparation of micellar solutions is heated at from 160.degree. to 180.degree. C. and a total of from 20 to 30% by weight, based on the emulsifier, of .beta.-carotene is introduced in the presence of a conventional antioxidant, the hot homogeneous mixture is cooled rapidly to below 100.degree. C. by adding water, and the formulation is brought to the desired concentration of from 3 to 6% by weight by adding further water, and the .beta.-carotene micellar solutions obtained by this process. The non-ionic emulsifiers used in this process have an HLB value of from 12 to 16, and are in particular oxyethylated triglycerides of fatty acids of 12 to 18 carbon atoms containing 20-60 oxyethylene units. Parenteral admininstration of the stable .beta.-carotene micellar solutions according to the invention to cattle relieves the disturbed estrus cycle and impaired fertility caused by .beta.-carotene deficiency.

Stable injectable .beta.-carotene micellar solutions and their

Process for the manufacture of canthaxanthin by oxidizing .beta.-carotene, retro-dehydro-carotene or echinenone with a salt of chloric or bromic acid in the presence of a catalyst and of an inert diluent or solvent.

Manufacture of canthaxanthin

Symmetrical carotenoids are prepared from the half-molecules by dimerizing the phosphonium salts of the half-molecules with peroxides, peroxo compounds or peroxy compounds in an alkaline medium.

Manufacture of symmetrical carotenoids

Echinenone is produced by oxidizing .beta.-carotene or retro-dehyro-carotene with iodic acid or a salt of iodic acid in the presence of a catalyst and of an inert diluent or solvent.

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Weisenheim, Germany

Joachim U Schneider