Abstract:
The invention relates to an improved method for producing D-pantothenic acid and/or salts thereof and to the use thereof as an additive for animal feed.
Abstract:
The invention relates to a method for the production of at least one microbial metabolic product having at least 3 C atoms or at least 2 C atoms and at least one N atom by means of sugar-based microbial fermentation. The inventive method involves the following steps: a) producing a sugar-containing liquid medium having a monosaccharide content of more than 20 weight percent from a starch source, wherein the sugar-containing liquid medium also comprises nonstarch-containing solid components of the starch source; b) fermenting the sugar-containing liquid medium for the production of the metabolic product(s) and c) separating or isolating at least one metabolic product from the fermentation broth, wherein the microorganism strain producing the desired metabolic product(s) is cultivated with the sugar-containing liquid medium, which is obtained by: a1) milling the starch source and a2) liquefying the ground material in an aqueous fluid in the presence of at least one starch liquefying enzyme and subsequently saccharifyng the resulting liquid using at least one saccharifying enzyme, wherein at least part of the ground material is liquefied into an aqueous liquid by continuous or discontinuous addition.
Abstract:
The invention relates to a method for the production of at least one microbial metabolic product having at least 3 C atoms or at least 2 C atoms and at least one N atom by means of sugar-based microbial fermentation. The inventive method involves the following steps: a) producing a sugar-containing liquid medium having a monosaccharide content of more than 20 weight percent from a starch source, wherein the sugar-containing liquid medium also comprises nonstarch-containing solid components of the starch source; b) fermenting the sugar-containing liquid medium for the production of the metabolic product(s) and c) separating or isolating at least one metabolic product from the fermentation broth, wherein the microorganism strain producing the desired metabolic product(s) is cultivated with the sugar-containing liquid medium, which is obtained by: a1) milling the starch source and a2) liquefying the ground material in an aqueous fluid in the presence of at least one starch liquefying enzyme and subsequently saccharifyng the resulting liquid using at least one saccharifying enzyme, wherein at least part of the ground material is liquefied into an aqueous liquid by continuous or discontinuous addition.
Abstract:
The invention relates to an improved method for producing an animal food supplement containing D-panthothenic acid and/or salts thereof, in addition to the use thereof.
Abstract:
The invention relates to an improved method for producing D-pantothenic acid and/or the salts thereof and the use of said substance as an additive for animal food.
Abstract:
The invention relates to an improved method for producing D-pantothenic acid and/or the salts thereof and to the use thereof as an additive for animal feed.
Abstract:
The invention relates to a process for the production of at least one microbial metabolite having at least 3 carbon atoms or at least 2 carbon atoms and at least 1 nitrogen atom by means of sugar-based microbial fermentation, comprising: a) the preparation of a sugar-containing liquid medium with a monosaccharide content of more than 20% by weight from a starch feedstock, the sugar-containing liquid medium also comprising non-starchy solid constituents of the starch feedstock; b) the fermentation of the sugar-containing liquid medium for the production of the metabolite(s); and c) depletion or isolation of at least one metabolite from the fermentation liquor, wherein a microorganism strain which produces the desired metabolite(s) is cultivated with the sugar-containing liquid medium, said liquid medium being obtained by: a1) milling the starch feedstock; and a2) liquefying the millbase in an aqueous liquid in the presence of at least one starch-liquefying enzyme, followed by saccharification using at least one saccharifying enzyme, where at least some of the millbase is liquefied by continuous or batchwise addition to the aqueous liquid.
Abstract:
Procedimiento para la producción de ácido D-pantoténico y/o sus sales, caracterizado porque e) se utiliza al menos un microorganismo que produce ácido D-pantoténico, cuya biosíntesis de ácido pantoténico (pan) y/o de isoleucina/valina (ilv) está desregulada y que forma al menos 2 g/l de sales del ácido pantoténico mediante la fermentación en un medio de cultivo, añadiéndose al medio de cultivo 0 - 20 g/l de Beta-alanina libre y/o sal de Beta-alanina, f) se conduce la solución de fermentación que contiene D-pantotenato mediante la aplicación de un campo eléctrico a través de una o varias membranas selectivas de iones, eliminándose los iones de bajo peso molecular de la solución que contiene D-pantotenato, g) se ajusta el ácido D-pantoténico libre contenido en la solución mediante la adición de una base de calcio y/o de magnesio hasta un valor de pH de 3-10, obteniéndose una solución, que contiene pantotenato de calcio y/o de magnesio y h) se somete la solución que contiene pantotenato de calcio y/o de magnesio a un secado y/o formulación.
Abstract:
The invention relates to an improved method for producing D-pantothenic acid and/or salts thereof and to the use thereof as an additive for animal feed.