Process for preparing high .alpha.-glycosyl-L-ascorbic acid, and

Details Process for preparing high .alpha.-glycosyl-L-ascorbic acid, and Process for preparing high .alpha.-glycosyl-L-ascorbic acid, and

1992-12-14

1994-08-16

Gorgos, Kathryn

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041824, C25B 300

Patent

active

053384202

ABSTRACT:
A high .alpha.-glycosyl-L-ascorbic acid content product is prepared by subjecting an aqueous solution containing .alpha.-glycosylL-ascorbic acid together with L-ascorbic acid and/or a saccharide to electrodialysis wherein an anion-exchange membrane is used in order to allow the L-ascorbic acid to predominantly permeate the membrane and to separate the L-ascorbic acid from .alpha.-glycosyl-L-ascorbic acid, or in order to allow the .alpha.-glycosyl-L-ascorbic acid to predominantly permeate the membrane and to separate the .alpha.-glycosyl-L-ascorbic acid from the saccharide. Thus, a high .alpha.-glycosyl-L-ascorbic acid content product having a desirable stability and physiological activity is readily prepared.

REFERENCES:
patent: 4767870 (1988-08-01), Fujiwara et al.
K. Ideue, "Desalt Used Ion-Exchange Membranes," Up-to-date Food processing, vol. 21, No. 7, Jul. 1986 pp. 54-57.

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