Process for stabilizing levogyre ascorbic acid (LAA), a stable a

Details Process for stabilizing levogyre ascorbic acid (LAA), a stable a Process for stabilizing levogyre ascorbic acid (LAA), a stable a

1997-10-22

2000-03-14

Owens, Amelia

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

514474, 424 59, C07D30702

Patent

active

060374810

ABSTRACT:
The present invention refers to a process for stabilizing LAA in an aqueous medium, which includes the step of contacting the LAA with at least one compound capable of forming hydrogen bridges with the LAA. In another aspect, the invention relates to a stable aqueous LAA composition which includes, in addition to said ascorbic acid, at least one compound which is linked to the LAA by hydrogen bridges, and to a process for preparing it. The present invention further relates to an emulsion including, in its aqueous phase, at least one compound linked to levogyre ascorbic acid (LAA) by hydrogen bridges. Further according to the present invention a vitamin product is provided, in which a stable LAA composition as described above is contained in organic envelopes which enable a gradual and prolonged release of the LAA into the organism. The vitamin product may further include a compound capable of stimulating the metabolism of the fibroblasts. The present invention further relates to a method for cosmetic, therapeutical or nutritional treatment, which includes the administration of a composition as described above.

REFERENCES:
patent: 2132662 (1938-10-01), Volwiler et al.
patent: 2721161 (1955-10-01), Maiese
patent: 4983382 (1991-01-01), Wilmert et al.
patent: 5140053 (1992-08-01), Darr et al.
WO 98/00102 WIPO, published Jan. 8, 1998.
WO 98/00103 WIPO, published Jan 8, 1998.

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