Chitosan-glucan complex, method for its production and end uses

Details Chitosan-glucan complex, method for its production and end uses Chitosan-glucan complex, method for its production and end uses

1979-06-04

1981-08-04

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

424180, C08B 3708, C07G 700

Patent

active

042823510

ABSTRACT:
A method for preparing a chitosan-glucan complex is disclosed, which comprises the steps of subjecting filamentary fungal masses from certain fungal species such as Allomyces, Aspergillus, Penicillium, Mucor, Phycomyces, Choanephora, Zygorrhynchus and like fungi, to a treatment with a concentrated aqueous solution of a strong alkali brought to its boiling point and for a time of from 4 to 6 hours. This treatment removes a number of undesirable components since a deacetylation of chitin occurs, the soluble components being concurrently removed.
Foaming substances, if present, may be removed by a preliminary treatment with a solution of strong alkalies, with a lower concentration than that of the solution used for chitin deacetylation.
The products thus obtained lend themselves well to the preparation of columns capable of retaining certain compounds or elements, e.g. transition metal ions and can be used for flocculation reaction, in chromatographic reactions and many other uses.

REFERENCES:
patent: 2910408 (1959-10-01), Pope et al.
patent: 3133856 (1964-05-01), Neely
patent: 3892731 (1975-07-01), Austin
Beran, et al., "Chem. Abst.", vol. 78, 1973, p. 4,0141(p).
Bomstein, "Chem. Abst.", vol. 82, 1975, p. 15,534(u).
Shinoda, et al., "Chem. Abst.", vol. 84, 1976, p. 150,870(g).

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