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1 336 291

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A1

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IPC

(21) (22)

Application

3831457/13, 1984-12-25

(22)

Actual filing date

1984-12-25

(45)

Published

1998-09-10

(72)

Inventor

Safronova T.M.Radchenko N.G.

METHOD OF PREPARING CHITIN FROM CRUSTACEAN SHELL Russian patent published in 1998 - IPC

Abstract SU 1336291 A1

FIELD: fish, chemical, microbiological industries. SUBSTANCE: method involves two-stage alternating treatment of raw with sodium hydroxide and hydrochloric acid and washing out of semiproduct after each stage with 4-6% sodium chloride solution to neutral reaction of washing water. Method can be used in crustacean shells, insects and cellular microorganisms processing. The end product has increased chitosan viscosity. EFFECT: improved quality of chitin. 1 tbl

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SU 1 336 291 A1

Authors

Safronova T.M.

Radchenko N.G.

Dates

1998-09-10—Published

1984-12-25—Filed

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