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Chitosan can be absolutely degradated in nature by chitoanase, lysozyme and microorganism, it's a regenerated resource and environmental friendly material. This paper summerized the structure and chemical properities of polysaccharid and introduced the research progress about chemical modification on chitosan. It also introduced the application of modified chitosan in medicine, membrane separation, industrial wastewater treatment, daily chemical industry, food industry and so on. The preparation of catalyst£º chitosan supported noble metal and its research progress was summerized in this paper. [ Last edited by tangyt2008 on 2008-6-16 at 15:29 ] |
5Â¥2008-06-16 15:26:25
huahua840115
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- ×¢²á: 2008-02-25
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2Â¥2008-06-15 14:40:34
276856673
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3Â¥2008-06-15 15:53:26
| Chitosan is the only kind of naturally occurring basic polysaccharide which has been discovered by hunman so far. Its structure inludes the basic unit of chitosan and biodegradable ethyl phthalein glucosamine unit. So chitosan has chelation on metal ions especially some transition metal ions. Chitosan has extensive sources and good solubility. |
4Â¥2008-06-16 14:41:04













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