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甲壳素,壳聚糖及其衍生物的应用 总被引:84,自引:2,他引:84
随着甲壳素,壳聚糖及其衍生物研究的迅速发展,其研究内容和应用范围越来越广泛。从发展历史,性质,提取及加工方法,应用,发展前景几个方面对其进行简要评述。 相似文献
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Dr. Luísa C. R. Carvalho Fausto Queda Cátia V. Almeida Santos Dr. M. Manuel B. Marques 《化学:亚洲杂志》2016,11(24):3468-3481
Chitin and chitosan are attractive biopolymers with enormous structural possibilities for chemical modification, creating platforms for new chemical entities with a broad scope of applications, ranging from material science to medicine. During the last few years, incredible efforts have been dedicated to the regioselective modification of these biopolymers paving the way for improved properties and tailored activities. Herein, the most recent advances in chitin/chitosan regioselective modification, reaction conditions, selectivity, and the impact on its applications are highlighted. Moreover, the recent focus on chitooligosaccharides, their regioselective and chemoselective functionalization, as well as their role in biological studies, including molecular recognition with several biological targets are also covered. 相似文献
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Chitin and chitosan are natural polymers extracted from various plants and animals. In recent years, these two polymers have attracted much interest because of their biodegradability, biocompatibility, wound-healing acceleration and many other unique properties. As a natural renewable resource, they offer many potential applications in a number of diversified fields. Chitin and chitosan fibers have been found useful as a biomaterial for potential applications such as sutures and wound dressings. This article presents a brief introduction to the properties of chitin and chitosan, and reviews the various attempts for the production of fibers from the two polymers. © 1997 John Wiley & Sons, Ltd. 相似文献
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甲壳素/壳聚糖在环境治理上的应用 总被引:4,自引:0,他引:4
天然高分子化合物甲壳素、壳聚糖具有原料丰富、无毒、易于生物降解等优点,国内外众多学者对它的开发应用展开研究,本文综述了甲壳素、壳聚糖及其衍生物对环境污染物的去除,介绍了它在环境治理尤其是废水处理中的研究和应用情况。 相似文献
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Enrique Agull María Susana Rodríguez Viviana Ramos Liliana Albertengo 《Macromolecular bioscience》2003,3(10):521-530
The conversion of processed discarded material into valuable by‐products and alternative specialty materials has been identified as a timely challenge for food research and development associated with numerous applications of chitinous products. Chitin, chitosan, calcareous chitin, and chitosan, N‐acetylated chitosan, N‐methylene phosphonic chitosan (NMPC), and N‐lauryl‐N‐methylene phosphonic chitosan (LMPC) are being studied as a result of their broad range of food applications. These biopolymers offer a wide range of unique applications including formation of biodegradable films, immobilization of enzymes, preservation of foods from microbial deterioration, as additives (clarification and deacidification of fruits and beverages, emulsifier agents, thickening and stabilizing agents, color stabilization), and dietary supplements. This review summarizes some of the most important developments in this field. 相似文献
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Diethylaminoethyl–chitin (DEAE–chitin) was synthesized by introducing DEAE groups onto the C(6)–OH in chitin. DEAE–chitin was N-deacetylated by heating in aqueous 10% sodium hydroxide containing sodium borohydride to prepare the diethylaminoethyl–chitosan (DEAE–chitosan). In addition, DEAE–chitin was quaternized with ethyl halide to produce triethylaminoethyl–chitin (TEAE–chitin). Their antibacterial activities were evaluated by using colony count against Staphylococcus aureus and Escherichia coli by means of shake flask method. The antibacterial activity was found to increase in order of DEAE–chitin, DEAE–chitosan, TEAE–chitin. DEAE–chitin was hydrolyzed by enzymes to investigate the effect of molecular weight on its antibacterial activities. The antibacterial activity was dependent on the structure, particularly on the molecular weight of chitin derivatives. © 1997 John Wiley & Sons, Ltd. 相似文献