发明名称 |
METHOD OF PREPARING CHITOSAN |
摘要 |
FIELD: chemical industry, more particularly preparation of food chitosan. SUBSTANCE: method comprises alternating double treatment of shells of crustacean with 4% solutions of hydrochloric acid and sodium hydroxide, washing semifinished product after each stage to neutral reaction of wash water, treatment with 50% sodium hydroxide solution at 100 C for 30 minutes followed by washing to neutral reaction of medium and treatment with liquid nitrogen under airtight conditions for 2-4 minutes. EFFECT: improved quality of chitosan and shorter technological cycle. 5 ex, 1 tbl
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申请公布号 |
RU2147590(C1) |
申请公布日期 |
2000.04.20 |
申请号 |
RU19980117100 |
申请日期 |
1998.09.15 |
申请人 |
DAL'NEVOSTOCHNYJ GOSUDARSTVENNYJ TEKHNICHESKIJ RYB;OKHOZJAJSTVENNYJ UNI |
发明人 |
SAFRONOVA T.M.;IGNATJUK L.N.;MAKSIMOVA S.N. |
分类号 |
C08B37/08;(IPC1-7):C08B37/08 |
主分类号 |
C08B37/08 |
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地址 |
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