Abstract:
The present invention relates to means and methods for producing an amide compound from a nitrile compound with less acrylic acid as by-product using a Nitrile hydratase (NHase) and Amidase producing microorganism as biocatalyst. Also provided is an aqueous amide compound obtained by the methods of the invention as well as a composition comprising acrylamide or polyacrylamide as well as a dried microorganism exhibiting a NHase/Amidase activity ratio of at least 400 when being brought into contact with a nitrile compound to convert said nitrile compound into an amide compound.
Abstract:
The invention relates to 5-isopropyl-3-aminomethyl-2-methyl-1-amino-cyclohexane (carvone diamine) and a method for the production thereof by a) reacting carvone with hydrogen cyanide, b) then reacting the carvone nitrile obtained in step a) with ammonia in the presence of an imine-forming catalyst, and c) subsequently reacting the reaction mixture that is obtained in step b) and contains carvone nitrilimine with hydrogen and ammonia on hydrogenation catalysts. The invention further relates to the use of carvone diamine as a curing agent for epoxy resins, as an intermediate product when producing diisocyanates, as an initiator entity when producing polyetherols, and/or as a monomer for producing polyamides.
Abstract:
The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula (III) and/or Formula (IV) and/or Formula (V) from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula (III) and/or Formula (IV) and/or Formula (V), including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula (IV) and/or Formula (V) in order to produce pest control compositions, in particular insecticides, comprising such compounds.
Abstract:
The invention relates to a method for producing at least one organic compound comprising at least 3 C-atoms or at least 2 C-atoms and at least 1 N-atom by fermentation. Said method comprises the following steps: a1) a starch source is ground in order to obtain a grinding material which contains at least one part of the non-starch containing solid components of the starch source; a2) the grinding material is suspended in an aqueous liquid and said grinding material contained in the aqueous liquid is liquefied in the presence of at least one enzyme which liquefies starch, an aqueous substance which contains dextrin (1), which contains at least one part of the non-starch containing solid components of the starch source, is obtained; and b) the aqueous substance which contains dextrin (1) is used in fermentation for cultivating a micro-organism which is capable of over-producing the organic compounds; enzymes, which hydrolyse the dextrin into monosaccharides, are not added or are added in an amount of less than 0.001 wt. %, in relation to the total weight of the used starch source.
Abstract:
The present invention relates to a method for manufacturing an aqueous glucose solution from the starch components of Triticeae grains, for example from rye-, triticale- or in particular wheat grains. The invention also relates to a glucose-based fermentation method for manufacturing organic compounds in which the glucose manufactured for fermentation is produced from the starch components of Triticeae grains by way of a method according to the invention.
Abstract:
The present invention relates to methods for cultivating a nitrile hydratase producing microorganism, compositions for cultivating a nitrile hydratase producing microorganism, and use of compositions comprising a saccharide and an organic acid for cultivating a nitrile hydratase producing microorganism. The composition provided in and to be employed in context with the present invention is particularly suitable for inducing both, growth and nitrile hydratase production of corresponding microorganisms.
Abstract:
The invention relates to a process for continuously preparing di-C1-3-alkyl succinates by reacting succinic acid with an C1-3-alkanol in the presence of a fixed-bed heterogeneous acidic esterification catalyst in a tubular reactor at a temperature in the range of from 60 to 100° C., wherein a mixture, comprising succinic acid, C1-3-alkanol, mono-C1-3-alkyl succinate, di-C1-3-alkyl succinate and water, is formed in a mixing stage and fed to the entrance of the tubular reactor, and wherein 5 to 75% of the outlet flow rate of the tubular reactor are recycled directly to the mixing stage as a recycle stream, and the molar ratio of C1-3-alkanol to succinic acid added to the mixing zone, and not including the C1-3-alkanol and succinic acid at the recycle stream, being in the range of from 2.0 to 9.5. The invention furthermore relates to a process for separating the reactor effluent of an esterification of succinic acid with an C1-3-alkanol to give di-C1-3-alkyl succinates by distillation, wherein the separation is performed in a divided wall column in which C1-3-alkanol and water are removed in a top draw of the column, di-C1-3-alkyl succinate is removed in a side draw of the column, and wherein mono-C1-3-alkyl succinate and succinic acid are removed in a bottom draw of the column.