Method for purifying pullulan

Details Method for purifying pullulan Method for purifying pullulan

1975-01-22

1977-01-25

Monacell, A. Louis

Textiles: fiber preparation

127 34, 536 1, C12D 1304

Patent

active

040049779

ABSTRACT:
A method for purifying pullulan which comprises cultivating a strain of Aureobasidium pullulans in a liquid medium, removing the cells from the culture broth, precipitating pullulan present in said broth with at least one solvent selected from the group consisting of alcohols, esters and ethers respectively with three or more carbon atoms and ketones with four or more carbon atoms to recover, and then dehydrating and/or drying the recovered pullulan.

REFERENCES:
patent: 3436311 (1969-04-01), Ferguson et al.
patent: 3827937 (1974-08-01), Kato et al.
patent: 3870537 (1975-03-01), Hijiya et al.
patent: 3915800 (1975-10-01), Kang et al.
Taguchi et al., "Structural Uniformity of Pullulan Produced by Several Strains of Pullularia pullulans", Agr. Biol. Chem. 37(7), pp. 1583-1588 (1973).
Elinov et al., "Extracellular Glucan Produced by Aureobasdium Pullulans", Chem. Abstracts, vol. 77, p. 253, No. 31328g (1972).
Neshataeva et al., "Formation of an Extra Cellular Polysaccharide by Pullularia Pullans under Semi-submerged Conditions", Chem. Abstracts, vol. 70, p. 86, No. 85130k, (1969).

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