Arthropod body surface outside the main component of bone. By the combination of carbohydrates and ammonia molecules. Protect the body. Has been used to make photographic film, surgical sutures, artificial skin, contact lenses, etc..
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No. 2
Chitin (chitin) In insects, crabs and other arthropods found in the horny shell, but also exists in the internal structure of some invertebrates. Detailed description of chitin: Arthropods generally refers to a substance secreted by the body surface. Structure of β-poly-n-acetyl glucosamine. This substance containing carbohydrates and ammonia, of soft, flexible, mixed with the hardening of calcium, the formation of arthropod exoskeleton. Chitin is insoluble in water, alcohol, weak acid and weak base liquid, a protective function, but can be dissolved in concentrated hydrochloric acid, nitric acid and sulfuric acid. Decomposed under the action of the alkali deacetylation of chitin and acetic acid, further deacetylation of chitin in concentrated hydrochloric acid hydrolysis under the action of the glucosamine and acetic acid. Chitin is widely distributed in nature of a polysaccharide biological nitrogen polymer, the main source for shrimp, crabs, insects, crustaceans such as software shell and animal organs (such as squid cartilage), and fungi the cell wall and so on. Its reserves of natural polymer on earth in the second place, the estimated annual amount of natural biological synthesis of up to 1 × 1011 tons, second only to cellulose. Chitin, also known as chitin, chitosan or butanoic quality, is a polymer polysaccharides. It is not only in shrimps, crabs and other shell, but also in the mushrooms, fungus, algae, shellfish, cartilage, animals (such as squid, cuttlefish) cartilage and skin, arthropods (insects) and fungal cell walls is also pervasive.
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No. 3
Chitin is widely distributed in nature of a polysaccharide biological nitrogen polymer, the main source for shrimp, crabs, insects, crustaceans such as software shell and animal organs (such as squid cartilage), and fungi the cell wall and so on. Its reserves of natural polymer on earth in the second place, the estimated annual amount of natural biological synthesis of up to 11,011 tons, second only to cellulose. Generally derived from the shrimp and crab shell chitin, contains about 15% of the amino (-NH2) and 85% of acetyl (-COCH3). Chitin is not soluble in common organic solvents, inorganic acids or weak, does not dissolve in alkaline solution, only soluble in strong mineral acid. Chitin with strong moisture absorption, moisture effects are quite good, and has the function of heavy metal ions adsorption. Advantages: (1) Uniqueness: The only positively charged nature of active groups of the cellulose. (2) Human required: human health and survival of the sixth element required to improve the human body into a healthy state. (3) Security toxic side effects: 100% pure natural marine products. (4) nutrition and health: a food nutrition, but also has the dual role of adjuvant therapy. (5) The unique two-way adjustment: a two-way immune regulation - the role of immune activation and immune inhibition. (6) easy to absorb and use: a biological adaptation, easy affinity with the body, used by the body. (7) of high purity, high quality: the dedication of the modern high-tech, leading indicators, degree of deacetylation over 90%. Performance: (1) the role of immune activation (2) to prevent metastasis of cancer cells (3) the role of inhibition of cancer (4) to improve the effect of acidic (5) sterilization effect (6) to improve the role of diabetes (7) to increase the role of intestinal beneficial bacteria (8) Hemostatic effects of analgesic (9) inhibited the effect of hypertension (10) Strengthening the role of liver function