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Chitin

키틴 C화학적 특성, 용도, 생산

정의

이 품목은 게, 새우 등의 갑각류 껍질 또는 오징어의 뼈를 산성수용액에서 탄산칼슘을 제거한 후 약알칼리성수용액으로 단백질을 제거한 것으로서 주성분은 Ｎ-아세틸글루코사민(Ｎ-acetyl- glucosamine) 다량체이다.

성 상 이 품목은 백～엷은 황색 또는 적색을 띠는 분말 혹은 비늘모양 고체로서 약간 특유의 냄새가 있다.

순도시험

  (1) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 4.0ppm 이하이어야 한다.

  (2) 납 : 이 품목 5.0g을 취하여 원자흡광광도법 또는 유도결합플라즈마발광광도법에 따라 시험할 때, 그 양은 2.0ppm 이하이어야 한다.

확인시험

이 품목 0.2g에 안트론시액 5mL 및 물 1mL를 가하여 수욕상에서 가열할 때, 액은 청～녹색을 나타낸다.

강열잔류물

  이 품목을 건조물로 환산하여 강열잔류물시험법에 따라 시험할 때, 그 양은 5% 이하이어야 한다.

개요

Chitin is the most abundant natural amino polysaccharide. It has a similar annual yield as cellulose. Chitin is a kind of highly valuable material in biomedical applications because of its high biocompatibility, biodegradability and non-toxicity as well as its antimicrobial activity and low immunogenicity. It can be easily processed into gels, membrane, nanofibers, beads, nanoparticle, scaffold and sponges, enables its wide applications. In the tissue engineering, it can be used for manufacturing polymer scaffold to satisfy the demands of repairing, replacing, maintaining, or enhancing the function of a particular tissue or organ. In wound dressing, chitin can be used as antimicrobial reagent. In the field of drug delivery, the water-soluble carboxymethyl chitin (CMC) nanoparticle can be used as an effective carrier in drug delivery.

화학적 성질

Chitin is a colorless, crystalline or amorphous powder that is insoluble in water, organic solvents, dilute acids, and alkalis. It dissolves in concentrated mineral acids with simultaneous degradation of the polymer. Although chitosan is insoluble in water, it does dissolve in aqueous organic acids, for example, acetic and formic acids, as well as inorganic acids. Chitin and chitosan preparation can vary due to the source, with compositional differences. Similarly, the physicochemical characteristics of chitin and chitosan differ between crustacean species and preparation methods. Several studies have clearly demonstrated the specific characteristics of these products. The Mw and degree of deacetylation (DD) vary with process conditions. The physicochemical characteristics of chitin and chitosan influence their functional properties. Mw and DD vary with process conditions or different extraction methods. Chitosan's application depends on physical, biological, and chemical properties and chitosan depends on two parameters, such as DD and Mw.

용도

chitin (chitine) is a moisture retainer and film-forming agent. This is a naturally occurring polysaccharide found in the shells of crustaceans, such as shrimp and crab, as well as in some fungi and algae. It is also a naturally occuring fibre found in the shells of shellfish. Used for the analysis of chitinase. lysozyme substrate.

정의

ChEBI: Chitin is a polysaccharide comprisingchains of N-acetyl-d-glucosamine,a derivative of glucose. Chitin isstructurally very similar to celluloseand serves to strengthen the supportingstructures of various invertebrates. It is the second most abundant biopolymer on earth, found especially in insects and fungi.

농업용

Chitin is a polysaccharidec omprising chains of N-acetyl- D-glucosamine, a derivative of glucose, linked byβ-1,4 bonds and containing about 77 nitrogen atoms. It may be visualized as cellulose in which the hydroxyl groups on the second carbon are replaced by -NHCOCH₃ groups Chitin is structurally very similar to cellulose and serves to strengthen various invertebrates. It offers resistance to chemicals and is present in the cell wall of some fungi as well as in the exoskeleton of insects.

참고 문헌

Kumar, Majeti NV Ravi. "A review of chitin and chitosan applications." Reactive and functional polymers 46.1 (2000): 1-27.
Jayakumar, R., et al. "Biomedical applications of chitin and chitosan based nanomaterials—A short review." Carbohydrate Polymers 82.2 (2010): 227-232.

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키틴 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Maanshan Tiantai Biotechnology Co., Ltd.	+86-0555-8889890 +86-17356584060	GM@tiantaibio-tech.com	China	72	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12470	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	6011	58
Hebei Dangtong Import and export Co LTD	+8615632927689	admin@hbdangtong.com	China	984	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	19368	58
airuikechemical co., ltd.	+undefined86-15315557071	sales01@airuikechemical.com	China	994	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	2999	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21687	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58

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