Preparation and characterization of Maillard reacted chitosan films with hemicellulose model compounds
Preparation and characterization of Maillard reacted chitosan films with hemicellulose model compounds
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DOI：
10.1002/app.27842
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发表时间：
2008-05-15
影响因子：
3
通讯作者：
Kawai, Shuichi
中科院分区：
文献类型：
--
作者：
Umemura, Kenji;Kawai, Shuichi
研究了壳聚糖与半纤维素模型化合物甘露糖、木糖和葡萄糖醛酸的美拉德反应。将壳聚糖和化合物溶解在1%乙酸中，并在50 ℃下干燥。在所获得的膜的分析中，测量重量增加、色差、FTIR、游离氨基的相对量、对稀乙酸的不溶性和拉伸性能。随着化合物的加入，膜重逐渐增加，色差变化明显。此外，游离氨基的相对量迅速下降，不溶物显著增加。特别是木糖，在少量添加时带来了剧烈的变化。红外光谱分析结果表明，所有化合物均发生了壳聚糖糖基的断裂和杂环化合物的生成。随着大量化合物的加入，观察到羰基和羧基的形成。在10- 20wt%的添加量下，拉伸强度得到改善。(C)2008 Wiley Periodicals，Inc.
The Maillard reaction between chitosan and hemicellulose model compounds such as mannose, xylose, and glucuronic acid was investigated. Chitosan and the compounds were dissolved in 1% acetic acid and were dried at 50 degrees C. In an analysis of the film obtained, weight increase, color difference, FTIR, relative amount of free amino groups, insolubility to dilute acetic acid, and tensile properties were measured. The film weight increased gradually as the compounds were added, and the color difference changed significantly. In addition, the relative amount of free amino groups decreased rapidly, and the insoluble matter increased markedly. In particular, xylose brought about drastic changes in a small amount addition. According to the results of FTIR spectra, the cleavage of sugar unit of chitosan and the formation of heterocyclic compounds were observed in all compounds. The formation of carbonyl and carboxyl groups was observed with the addition of a large amount of the compounds. The tensile strength was improved in 10-20 wt % additions of the compounds. (C) 2008 Wiley Periodicals, Inc.