Evonik Degussa Gmbh

Evonik Operations Gmbh

Degussa Gmbh

Christoph Kobler

Christoph Weckbecker

Klaus Huthmacher

Thomas Haeussner

Martin Hateley

Philipp Roth

Cornelia Borgmann

Georg Borchers

Jürgen Bilz

Thomas Häussner

Frank Fischer

Barbara Jaeger

Thomas Haas

Thomas Tacke

Ulrike Kottke

Olivier Zehnacker

Axel Ronneburg

Dieter Buss

Rainer Peter

Lucas Geist

Alexander Schraven

Javier Martin-Tereso Lopez

Karsten Portner

Katja Kelm

Barbara Jäger

Javier Martin-tereso Lopez

Isabela Pena Carvalho De Carvalho

Thomas Haussner

Javier MARTÍN-Tereso LÒPEZ

The present invention relates to a composition for feeding a ruminant comprising i) a non-protein nitrogen compound, and ii) a coating surrounding the non-protein nitrogen compound, wherein said coating comprises one or more layers of a mixture of a saturated fat and a fatty acid, and said coating comprises from 60 wt.-%+/−10% to 85 wt.-%+/−10% of the saturated fat, e.g. hydrogenated fat, and from 15 wt.-%+/−10% to 40 wt.-%+/−10% of the fatty acid, each based on the total weight of the coating; a process for the preparation of said composition and its uses, e.g., for improving nitrogen utilization in a ruminant.

Compositions and methods for improving nitrogen utilization in a ruminant

Disclosed are compositions comprising NPN compound coated with a bypass agent allowing ruminal bypass of the composition and a method for increasing fiber digestibility, a method for increasing feed intake, a method for increasing somatic growth, a method for increasing milk production, a method for reducing N excretion in a ruminant, a method for improving rumen pH stability in a ruminant, a method for preventing or reducing ammonia toxicity in the rumen. The compositions and methods of the invention are particularly suitable for ruminants that are held in harsh climates and/or at remote locations from a farm.

Compositions for improving nitrogen utilization in a ruminant

An animal feed mixture containing DL-methionyl-DL-methionine and salts thereof for animals kept in aquacultures is provided. Methods for preparing DL-methionyl-DL-methionine of formula (I) and methods to fractionate the diasteriomeric forms obtained are also provided.

Preparation and use of methionylmethionine as feed additive for fish and crustaceans

The invention relates to an improved method for releasing an organic acid, preferably a carbon, sulfone or phosphone acid, particularly an alpha or beta hydroxycarbon acid, from the ammonia salt thereof by releasing and removing ammoniac and simultaneous extraction of the released acid, having an amine as a suitable extraction means from the aqueous phase. This method corresponds to a reactive extraction. The reactive extraction of an organic acid from the aqueous ammonia salt solution thereof can be significantly improved by the use of a strip medium or carrier gas, such as nitrogen, air, water vapor or inert gases such as argon. The released ammoniac is removed from the aqueous solution by the continuous gas flow and can be resupplied into a production process. The free acid can be obtained by a method such as distillation, rectification, crystallization, reextraction, chromatography, adsorption or by a membrane method from the extraction means.

Method for producing a free acid from the salt thereof

A method for preparing &#x3b1;-keto acids, especially &#x3b1;-ketomethionine, and/or derivatives thereof, whereby an aldehyde is reacted with thiols to give a corresponding dithioacetal, the dithioacetal formed, is reacted with an electrophile in the presence of a strong base, and the resulting &#x3b1;,&#x3b1;-(dithio)carboxylic acid is solvolyzed with acid-catalysis to release thiol and give the &#x3b1;-keto acid or a derivative thereof. Umpolung of aliphatic or aromatic aldehydes is effected by reaction with thiols.

Process for preparing &#x3b1;-keto acids and derivatives thereof

A chemical compound of the general formula I or II is useful as feed additive: wherein X=O or NR, and R=H, C-C-alkyl (optionally branched), C-C-cycloalkyl, aryl, or aralkyl, and wherein R, R, are identical or different and in each case H, C-C-alkyl (optionally branched), C-C-cycloalkyl, allyl, aryl, or aralkyl; or Rand Rtogether are an C- to C-alkylene group (optionally C-C-alkyl substituted).

2-methylthioethyl-substituted heterocycles as feed additives

The invention relates to a method for production of D- and/or L-methionine via D- and/or L-homoserine with subsequent chemical transformation to give methionine.

Method for production of methionine from homoserine

Ketomethionine ketals and hemiketals and derivatives thereof are useful as feed additives, in particular for the nutrition of ruminants.

Ketomethionine ketals and derivatives thereof

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Alzenau, Germany

Christoph Kobler