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 a method for stripping sulfur and/or a sulfur-containing compound from a sugar, a sugar alcohol and/or from a sugar acid by bringing the sugar, sugar alcohol and/or the sugar acid in a liquid phase into contact with an adsorber. Sugar, sugar alcohol or sugar acid can be produced by using this method, and they can be used as constituents in pharmaceutical or cosmetic products or in foodstuffs or as a building block in chemical synthesis.
Abstract:
The present invention relates to a method for the production of at least one nonvolatile microbial metabolite in solid form by sugar-based microbial fermentation, in which process a microorganism strain which produces the desired metabolites is grown using a sugar-containing liquid medium with a monosaccharide content of more than 20% by weight based on the total weight of the liquid medium, and the volatile constituents of the fermentation liquor are subsequently largely removed, the sugar-containing liquid medium being prepared by: a1) milling selected starch feedstock from cereal grains; 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, for liquefaction purposes, at least a portion of the millbase is liquefied by continuous or batchwise addition to the aqueous liquid. Furthermore, the invention relates to a solid formulation, of a nonvolatile microbial metabolite, obtainable by the method according to the invention; and to the use of such a solid formulation as additive or supplement for human or animal nutrition or for the treatment of textiles, leather, cellulose, paper or surfaces.
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:
The present invention describes a process for the degradation of cellulose by dissolving the cellulose in an ionic liquid and treating it at elevated temperature, if appropriate in the presence of water.
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:
La invencion se refiere a un proceso para la produccion de al menos un metabolito microbiano con al menos 3 atomos de carbono, o al menos 2 atomos de carbono y al menos 1 atomo de nitrogeno mediante fermentacion microbiana basada en azucar, que comprende: a) la preparacion de un medio liquido que contiene azucar con un contenido de monosacarido de mas del 20% en peso proveniente de un alimento de almidon, en donde el medio liquido que contiene azucar tambien comprende constituyentes solidos distintos de almidon del alimento de almidon; b) la fermentacion del medio liquido que contiene azucar para la produccion del (os) metabolito(s); y c) la deplecion o el aislamiento de al menos un metabolito a partir del licor de fermentacion, en donde una cepa de microorganismo que produce el(os) metabolito(s) de interes se cultiva en el medio liquido que contiene azucar, en donde el medio liquido se obtiene por: a1)molienda del aliento de almidon; y a2) licuefaccion de la base de molienda en un liquido acuoso en presencia de al menos una enzima que licua el almidon, seguido de sacarificacion con al menos una enzima sacarificante, en donde al menos parte de la base de molienda se licua por adicion continua o en tandas al liquido acuoso.
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.