论文部分内容阅读
甲壳素(Chitin)是一种天然直链状酰胺类多糖,又称甲壳质、几丁质或壳蛋白。甲壳索部分和全部脱去乙酰基后就得到壳聚糖。甲壳素是地球上蕴藏最丰富的有机物之一,在蟹、虾壳中含量高达15%-30%。估计地球上海年由生物合成的甲壳素约有100亿吨之多,是仅次于纤维素的第二大再生天然资源。如果从海洋生物中提取甲壳素,年产量可达10亿吨,是一种取之不尽,用之不竭的再生天然资源。
Chitin is a natural linear amide polysaccharide, also known as chitin, chitin or shell protein. Chitosan is obtained after the chitosan is partially and completely deacetylated. Chitin is one of the most abundant organic substances on the earth. It contains up to 15%-30% in crab and shrimp shells. It is estimated that about 10 billion tons of chitin is biosynthesized in Shanghai on the Earth. It is the second largest renewable natural resource after cellulose. If chitin is extracted from marine organisms, the annual output can reach 1 billion tons, which is an inexhaustible renewable natural resource.