Science Assignment代写:大豆多糖

2017-02-20 13:07

大豆多糖是一种天然的崩解剂，不含任何淀粉或糖可用于营养产品。khalidindi26等人1982评估大豆多糖（一组来自大豆获得高分子量的多糖）是利用乳糖和磷酸氢钙作为填料直接压缩片剂崩解剂。交联羧甲基纤维素钠、玉米淀粉为控制崩解剂。大豆polysacchardie执行以及作为崩解剂在直接压片制剂结果并联的交联 Chitin和chitosan Chitin（β-（1→4）-乙酰氨基葡萄糖）是一种天然多糖，从虾壳。与壳聚糖中游离氨基相比，它具有与乙酰基共价连接的氨基。壳聚糖是商业上的脱乙酰几丁质产生的，它是甲壳类动物的外骨骼结构元素（如蟹和虾）和真菌细胞壁。bruscato等人1978报道，当甲壳素被列入普通片剂，片剂崩解在5和10分钟，不论药物的溶解度。利用表面自由能分析口腔崩解时间和润湿时间。Chitosan是最有名的天然多糖用于其在制药工业中的广泛应用 .

Science Assignment代写:大豆多糖

Soy polysaccharide It is a natural superdisintegrant that does not contain any starch or sugar so can be used in nutritional products. Khalidindi26 et al 1982 evaluated soy polysaccharide (a group of high molecular weight polysaccharides obtained from soy beans) as a disintegrant in tablets made by direct compression using lactose and dicalcium phosphate dihydrate as fillers. A cross-linked sodium carboxy-methyl cellulose and corn starch were used as control disintegrants. Soy polysacchardie performs well as a disintegrating agent in direct compression formulations with results paralleling those of cross-linked
Chitin and chitosan Chitin (β-(1→4)-N-acetyl-D-glucosamine) is a natural polysaccharide obtained from crab and shrimp shells. It possesses amino group covalently linked to acetyl group as compared to free amino group in chitosan. Chitosan is produced commercially by deacetylation of chitin, which is the structural element in the exoskeleton of crustaceans (such as crabs and shrimp) and cell walls of fungi. Bruscato et al 1978 reported that when chitin was included in the conventional tablets, the tablets disintegrated with in 5 and 10 minutes irrespective of solubility of the drug. The disintegration time in the oral cavity as well as wetting time could be analyzed by surface free energy. Chitosan is the best known natural polysaccharide used for its versatile applications in pharmaceutical industry.

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