Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-?-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-?-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-?-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-?-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;5-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, caramel products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free food products, their production and use, in particular, coated food products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The invention relates to confections, in particular hard and soft confections, which contain a sweetener of 1-O-&agr;-D-glucopyranosyl-D-sorbitol (1,1 GPS), in particular 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6 GPS), 1-O-&agr;-D-glucopyranosyl-D-sorbitol (1,1 GPS) and 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1 GPM); and to the use of this sweetener in confections, in particular pharmaceutically active confections.

Abstract: The invention concerns improved sugar-free products, their production and use, in particular, coated products, their production and use. The products are characterized by their content in enriched mixtures of 1-O-&agr;-D-glucopyranosyl-D-mannitol (1,1-GPM) and 6-O-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS).

Abstract: The present invention relates to a compressed formulation containing 1,1-GPS (1-O-&agr;-D-glucopyranosyl-D-sorbitol) or a mixture of sweetening agents composed of 1,1-GPS, 6-0-&agr;-D-glucopyranosyl-D-sorbitol (1,6-GPS) and 1-0-&agr;-D-glucopyranosyl-D-mannitol (1,1 GPM).

Abstract: The invention relates to chewing gum containing 1.1-GPS (1-O-&agr;-D-glucopyranosyl-D-sorbitol), especially a sweetening agent mixture of 6-O-&agr;- D-glucopyranosyl-D-sorbitol (1.6-GPS), 1-O-&agr;-D-glucopyranosyl-D-sorbitol (1.1-GPS) and 1-O-&agr;-D-glucopranosyl-D-mannitol (1.1-GPM).

Abstract: Sugar alcohol mixtures are used as antimicrobially active compounds.

Abstract: The invention relates to a method for the preparation of rhamnose from rhamnolipids, for which an acidic emulsion of the rhamnolipid is hydrolyzed at 100.degree. to 200.degree. and subsequently cooled, the aqueous phase of the resulting hydrolysate is separated from the lipid phase, its pH is raised by the addition of a basic compound, any precipitate formed is removed, the remaining solution is concentrated and either processed further directly or chromatographed on ion exchange resin, rhamnose-containing fractions being obtained as eluate, which are processed further as such or worked up into crystalline rhamnose monohydrate.

Abstract: The invention relates to a process for the preparation of N-acyl derivatives of 5-aminolevulinic acid of general formula R-CO-NH-CH.sub.2 -CO-CH.sub.2 -CH.sub.2 -COOH, in which R stands for methyl, ethyl, propyl, isopropyl, butyl, phenyl, benzyl, furyl or furfuryl, as well as the hydrochloride of the free acid by acid hydrolysis, characterized in that the 5-hydroxymethyl furfural is condensed with a nitrile in acid solution and the N-acyl-aminomethyl furfural compound obtained is converted by photooxidation into a N-acyl-5-aminomethyl-5-hydroxydihydro-2,5-furan-2-one and the latter is reduced with zinc in acetic acid under ultrasonic treatment to N-acyl-5-aminolevulinic acid and by acid hydrolysis the 5-aminolevulinic hydrochloride is obtained.

Abstract: A cycloadduct of the formula ##STR1## is prepared by reacting 2,2'-(2,5-furandiyldimethylidine)bis-propanedinitrile with 8-methoxypheptafulvene to form a tetrahydroazulene intermediate and then heating a solution of the tetrahydroazulene intermediate in a boiling solvent to drive off methanol.

Abstract: The present invention refers to dicyanovinylsubstituted furan derivatives, processes for their production and their application. The new furan derivatives are represented by the general formula ##STR1## wherein x.sup.1 and x.sup.2 are equal or different and stand for H, alkyl, alkenyl, aryl, halogen, NO.sub.2 or CN.In the general formula I, n may be 0 or 1. In case of n=0, A means e.g. --CH.sub.2 OR.sup.1 (with e.g. R.sup.1 .dbd.H, alkyl or aryl).The compounds according to this invention can be used directly or in the form of their cycloadducts in several applications of electro-optical fields, e.g. for the manufacture of optical data recording systems or organic (electron) conducting materials or electron-transfer catalysts.

Abstract: Process of preparing 1,6-.beta.-D-anhydroglucopyranose (levoglucosan) in high purity is described, where the starting material with a water-content, adjusted to max. 20%, is pyrolyzed, the volatile components are condensed and this distillate is neutralized. After filtration and optional treatment with an adsorbent, the mixture is chromatographically separated over an ion-exchange resin with water as eluent. Levoglucosan containing fractions are concentrated and crystalline levoglucosan is obtained by an evaporation - and/or cooling crystallization from a supersaturated water solution.

Abstract: The present invention refers to a process for preparing 5-hydroxymethylfurfuraldehyde, which is also called HMF. This compound was yet prepared by dehydration of fructose-containing carbohydrates in the presence of various catalysts. Nevertheless, the separation of HMF from starting material, by-products and organic solvents was difficult and disadvantageous, especially by the presence of organic solvents. Surprisingly, it came out, that it is possible, to separate 5-hydroxymethylfurfuraldehyde from reaction mixtures, which are obtained by reactions of saccharides with an acid catalyst, in great purity and good yield with exclusive utilization of water as solvent, by means of ion exchangers, and to crystallize it out from chromatographic fractions.