Preparation of mycelial chitosan and glucan fractions from micro

Details Preparation of mycelial chitosan and glucan fractions from micro Preparation of mycelial chitosan and glucan fractions from micro

1985-06-10

1989-02-21

Wiseman, Thomas G.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

435171, 435917, 536 20, C12P 1904, C12P 102, C12R 1685, C08B 3708

Patent

active

048064742

ABSTRACT:
Chitin from microbial biomass is converted to chitosan and recovered as an essentially glucan-free product. The method involves contacting the biomass with a strong alkali solution at a temperature within the range of from 60.degree. to 90.degree. C. for a period of at least 10 hours to form an insoluble chitosan/glucan residue. The chitosan is then recovered by adding dilute acid to the residue to dissolve it without dissolving the glucan which can then be recovered separately.

REFERENCES:
patent: 4195175 (1980-03-01), Peniston et al.
patent: 4282351 (1981-08-01), Muzzarelli
Stagg, C. M., et al., (1973), Biochem. Biophys. Acta, 320, 64-72.
Sielsma, J. H., et al., (1986)in: Chitin in Nature and Technology, Plenum Press (Muzzarelli et al., eds), pp. 63-69.
Biotechnology and Bioengineering, vol. XXII, pp. 885-896, (1980).

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