摘要:
The present invention is directed to a process for the preparation of a fermentation broth. This fermentation broth contains - at least one lactic acid bacterium, abbreviated with LAB, that produces folate, - at least one propionic acid bacterium, abbreviated with PAB, that produces vitamin B12, - free folate and folate present in intracellular form in said lactic acid bacterium, - vitamin B12 present in intracellular form in said propionic acid bacterium, - propionate, and - acetate.
摘要:
A stable pharmaceutical aqueous solution of cyanocobalamin comprised of cyanocobalamin and water wherein said solution of cyanocobalamin is suitable for intranasal administration, has a viscosity less than about 1000 cPs, and yields a bioavailability of cyanocobalamin when administered intranasally of at least about 5% relative to an intramuscular injection of cyanocobalamin. The present invention is also directed towards a method for elevating the vitamin B 12 levels in the cerebral spinal fluid (CSF) comprising administering intranasally a sufficient amount of a cyanocobalamin solution so as to increase the average ratio of vitamin B 12 in the CSF to that in the blood serum (B12 CSF/B12 Serum x 100) to at least about 1.1 comprising intranasally administering an aqueous solution of a cyanocobalamin, wherein said solution of cyanocobalamin has a bioavailability of at least 5% relative to an intramuscular injection of a cyanocobalamin.
摘要:
The invention relates to an improved method for producing vitamin B12, according to which a culture containing a microorganism in which at least the enzymes uroporphyrinogen-III-methyltransferase and precorrin-2-dehydrogenase that are involved in sirohaem synthesis have an increased activity as opposed to the corresponding endogenous enzyme activities is fermented.
摘要:
L'invention concerne des souches de E.Coli productrices de vitamine B12 transformées par un ADN hétérologue comportant tout ou partie de la région cobI et permettant l'expression de ladite région dans E.Coli . En particulier, la région cobI est la région de Salmonella typhimurium .
摘要:
57 A process for the separation of vitamin B 12 in pure form which comprises bringing a vitamin B 12 -containing liquid having impurities into contact with a divinylbenzene styrene copolymer resin, and causing vitamin B 12 to be adsorbed to the resin. The vitamin B 12 thus adsorbed is eluted an eluent which is an aqueous solution containing a compound selected from the group consisting of a lower ketone, a lower ester and a lower ether. The resin may be treated before elution with purified water or an aqueous low-acidity solution.
摘要:
A thermostable cellobiohydrolase, having a cellobiohydrolase catalytic domain including: (A) a polypeptide including the amino acid sequence represented by SEQ ID NO: 1 or 2, (B) a polypeptide including an amino acid sequence in which at least one amino acid has been deleted, substituted, or added in the amino acid sequence represented by SEQ ID NO: 1 or 2, and having hydrolysis activity against a substrate of phosphoric acid swollen Avicel at least under conditions of 75°C and pH 5, or (C) a polypeptide including an amino acid sequence having 60% or greater sequence identity with the amino acid sequence represented by SEQ ID NO: 1 or 2, and having hydrolysis activity against a substrate of phosphoric acid swollen Avicel at least under conditions of 75°C and pH 5.
摘要:
The present invention relates to a composition comprising at least one probiotic bacterial strain belonging to the species Lactobacillus reuteri as a vitamin B12 producer. In particular, the present invention relates to selected bacterial strains belonging to the species Lactobacillus reuteri as vitamin B12 producers. Finally, the present invention relates to a food composition or supplement or pharmaceutical composition comprising a bacterial strain belonging to the species Lactobacillus reuteri.