Renatured chitosan and process of making same

Details Renatured chitosan and process of making same Renatured chitosan and process of making same

1979-02-15

1982-01-05

Lieberman, Allan

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

Organic compounds

Carbohydrates or derivatives

106162, 264186, 264330, C08B 3708, C08L 508

Patent

active

043095348

ABSTRACT:
Renatured chitosan having an optical rotation in solution that is at least 20% more negative than that of untreated chitosan and the process of making same. The process for preparing such renatured chitosan is accomplished by aging a solution of chitosan in an aqueous acid at a pH of about 2.0 to 5.5. It is preferred to age the solution at room temperature for about 2 to 14 days until the optical activity shifts toward the negative by at least about 20%.

REFERENCES:
patent: 2040879 (1936-05-01), Rigby
patent: 2795579 (1957-06-01), Doczi
patent: 4059457 (1977-11-01), Austin

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