摘要:
The invention relates to the use of prebiotics for the preparation of food or pharmaceutical compositions which are intended for the treatment and/or prevention of hyperglycaemic syndromes and, in particular, for the treatment of Type II diabetes and/or the prevention of the onset of Type II diabetes in patients with a predisposition to developing the type of diabetes. The invention also relates to the food and pharmaceutical compositions containing the prebiotics.
摘要:
The invention relates to the use of prebiotics for the preparation of food or pharmaceutical compositions which are intended for the treatment and/or prevention of hyperglycaemic syndromes and, in particular, for the treatment of Type II diabetes and/or the prevention of the onset of Type II diabetes in patients with a predisposition to developing the type of diabetes. The invention also relates to the food and pharmaceutical compositions containing the prebiotics.
摘要:
Nucleic acid sequences of truncated or mutated alternansucrases, vectors containing these nucleic acids sequences, host cells transformed with the nucleic acid sequences encoding truncated or mutated alternansucrases are provided. Furthermore, a process to recombinantly alternansucrase with a high level of expression, while retaining the enzymatic activity is described.
摘要:
Nucleic acid sequences of truncated or mutated alternansucrases, vectors containing these nucleic acids sequences, host cells transformed with the nucleic acid sequences encoding truncated or mutated alternansucrases are provided. Furthermore, a process to recombinantly alternansucrase with a high level of expression, while retaining the enzymatic activity is described.
摘要:
Method for preparing the disaccharide α-D-glucopyranosyl-(1→4)-2-N-acetyl-2-deoxy-α-D-glucopyranoside, comprising the step of using a mutant of a wild type glycoside hydrolase.
摘要:
Method for preparing the disaccharide [α-D-Gldp(1→3)]-α-L-Rhap-YR wherein Y is selected from —O— and —S— and R is selected from the group consisting of: C1-C6 alkyl, C1-C6 alkenyl, aryl, allyl, —CO-alkyl (C1-C6), —CO-alkenyl (C1-C6), —CO-aryl comprising the step of using a mutant of a wild type glycoside hydrolase.
摘要:
The invention relates to an isolated polypeptide with an glycosyl transferase enzymatic activity for producing dextrans with α(1→2) sidechains, comprising at least one region for bonding to glucan and a catalytically active region situated beyond the region bonding to glucan. The invention further relates to polynucleotides coding for said enzymes and vectors containing the same.
摘要:
The present invention deals with a method of producing 2,4-dihydroxybutyric acid (2,4-DHB) by a synthetic pathway comprising the transformation of malate in 4-phospho-malate using a malate kinase, said 4-phospho-malate being transformed in malate-4-semialdehyde using a malate semialdehyde dehydrogenase and said malate-4-semialdehyde being transformed in 2,4-DHB using a DHB dehydrogenase.
摘要:
The present invention relates to a recombinant process for the production of truncated or mutated dextransucrases while conserving the enzymatic activity or their specificity in the synthesis of the α-1,6 bonds. The present invention relates to nucleic acid sequences of truncated or mutated dextransucrases, vectors containing the nucleic acid sequences and host cells transformed by sequences encoding truncated or mutated dextransucrases. In another aspect, the invention concerns a method for producing, in a recombinant manner, truncated or mutated dextransucrases which conserve their enzymatic activity or which conserve their specificity in the synthesis of α-1,6 bonds and can produce, from saccharose, dextrans with high molar mass and modified rheological properties compared with the properties of dextran obtained with the native enzyme and isomalto-oligosaccharides with a controlled molar mass and dextrans. The dextrans and isomalto-oligosaccharides of the invention can be used namely as texturing agents or as prebiotics.
摘要:
A method of producing 2,4-dihydroxybutyric acid (2,4-DHB) by a synthetic pathway that includes the transforming malate in 4-phospho-malate using a malate kinase, said 4-phospho-malate being transformed in malate-4-semialdehyde using a malate semialdehyde dehydrogenase and said malate-4-semialdehyde being transformed in 2,4-DHB using a DHB dehydrogenase.