Synthesis of Chitosan and Glucosamine from Crustaceans Wastes (Shrimp, Crab, Lobster)
Processing Crustaceans results large amount of shell left overs. Chitin a natural polymer, constitutes the major part of this waste.Optimal application of this material in different fields may bring about a new era of activity based on chitin industry. Practically, large amounts of crustacean left overs is wasted. Glucosamine and chitosan, with a wide application are being made from these wastes., Heating chitin in the presence of sodium hydroxide. under nitrogen leads to formation of chitosan with 70 - 90%. purity degree. In presence of concentrated hydrochloric acid, chitin is converted into glucosamine with 60 - 70% purity degree. Chitin and Glucosamine are widely used in sewage treatrnent, glue production. food.industries, cosmetics paper mills, agriculture , medicine, dentistry, pharmaceutics, textile chromatography. photograiry. etc.
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| Format: | Journal Contribution biblioteca |
| Language: | Persian |
| Published: |
1993
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| Subjects: | Processing, Glucosamine, Chitin, Chromatography, Chitosan, Shrimp, Crab, Lobster, Synthesis, |
| Online Access: | http://hdl.handle.net/1834/12398 |
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| Summary: | Processing Crustaceans results large amount of shell left overs. Chitin a natural polymer, constitutes the major part of this waste.Optimal application of this material in different fields may bring about a new era of activity based on chitin industry. Practically, large amounts of crustacean left overs is wasted. Glucosamine and chitosan, with a wide application are being made from these wastes., Heating chitin in the presence of sodium hydroxide. under nitrogen leads to formation of chitosan with 70 - 90%. purity degree. In presence of concentrated hydrochloric acid, chitin is converted into glucosamine with 60 - 70% purity degree. Chitin and Glucosamine are widely used in sewage treatrnent, glue production. food.industries, cosmetics paper mills, agriculture , medicine, dentistry, pharmaceutics, textile chromatography. photograiry. etc. |
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