.alpha.-Glycosyl-L-ascorbic acid, and its preparation and uses

Details .alpha.-Glycosyl-L-ascorbic acid, and its preparation and uses .alpha.-Glycosyl-L-ascorbic acid, and its preparation and uses

1990-03-30

1992-08-11

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

424401, 424422, 424439, 424451, 424464, 424489, 424 49, 424 59, 424 62, 514 25, 549315, 536 41, 536 185, 536 186, A61K 906, A61K 948, A61K 3170, C07D30762

Patent

active

051377233

ABSTRACT:
.alpha.-Glycosyl-L-ascorbic acid exhibiting no direct reducing activity is formed in a solution containing L-ascorbic acid and an .alpha.-glucosyl saccharide when subjected to the action of a saccharide-transferring enzyme. .alpha.-Glycosyl-L-ascorbic acid is superiorly stable, and readily hydrolyzable in vivo to exhibit the activities inherent to L-ascorbic acid. Thus, .alpha.-glycosyl-L-ascorbic acid is favorably useful as a stabilizer, quality-improving agent, antioxidant, physiologically active agent and uv-absorbent in food pharmaceutical and cosmetic industries.

REFERENCES:
patent: 4065557 (1977-12-01), Frommer et al.
Aga et al., "Synthesis of .alpha.-O-.alpha.-D-Glucopyranosyl L-Ascorbic Acid by Cyclomaltodextrin Glycanotransferase", Agric. Biol. Chem., 1991, 55(7), 1751-6, 1991.

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