摘要:
The invention relates to processes for producing supported gold catalysts on carbon supports, wherein the support is brought into contact with aqueous solution or suspension of a chlorogold acid precursor. The invention also relates to a carbon-supported gold catalyst and its use for the oxidation of alcohols, aldehydes, polyhydroxy compounds and carbohydrates.
摘要:
The invention relates to compositions containing mixtures of open-chain and cyclic molecules of the sugar alcohols D-sorbitol and D-mannitol, said molecules being esterified by means of at least one carboxylic acid. The invention also relates to methods for producing said compositions and the use of the inventive compositions as lubricants or as hydraulic fluid.
摘要:
The invention relates to solubilizers for metal ions and poorly soluble metal compounds, containing an oxidation product of starch hydrolysate as a solubilizing agent, to a method for solubilizing metal ions and to the use of said solubilizer.
摘要:
The invention relates to compositions containing mixtures of open-chain and cyclic molecules of the sugar alcohols D-sorbitol and D-mannitol, said molecules being esterified by means of at least one carboxylic acid. The invention also relates to methods for producing said compositions and the use of the inventive compositions as lubricants or as hydraulic fluid.
摘要:
The invention relates to a method for the selective oxidation of a carbohydrate in the presence of a gold catalyst comprising gold particles distributed in a nanodispersed manner on a metal oxide support, and to a method for the selective oxidation of an oligosaccharide in the presence of a gold catalyst comprising gold particles distributed in a nanodispersed manner on a carbon or metal oxide support. The invention also relates to aldonic acid oxidation products produced using said method.
摘要:
The invention relates to a method for production of galactosyl isomalt and galactosyl isomalt, the products and intermediate products obtained and the use thereof.
摘要:
The invention relates to a method for the selective oxidation of a carbohydrate in the presence of a gold catalyst comprising gold particles distributed in a nanodispersed manner on a metal oxide support, and to a method for the selective oxidation of an oligosaccharide in the presence of a gold catalyst comprising gold particles distributed in a nanodispersed manner on a carbon or metal oxide support. The invention also relates to aldonic acid oxidation products produced using said method.
摘要:
The invention relates to methods for producing supported gold catalysts from a porous metal oxide support and a chloroauric acid precursor, whereby the support is brought in contact with an aqueous solution of the chloroauric acid precursor. The invention also relates to a metal oxide-supported gold catalyst and to its use for oxidizing alcohols, aldehydes, polyhydroxy compounds and carbohydrates.
摘要:
This invention concerns a process for reducing dyes of the group consisting of sulfur and vat dyes. The reduction is carried out in an aqueous alkali medium using isomaltulose or a mixture containing isomaltulose as the reducing agent.
摘要:
The invention relates to the use of lactobionic acid, lactobionic-´-lactone, a salt of lactobionic acid or a mixture thereof as flavour enhancer, in particular where the flavour that is enhanced is chosen from the group consisting of: acidic flavours, fruit flavours, sweet flavours, savoury flavours, and salt flavours. The invention further relates to a food composition comprising a flavour-enhancing system, characterised in that the flavour-enhancing system comprises lactobionic acid, lactobionic-´-lactone, a salt of lactobionic acid or a mixture thereof.