Study on affecting factors of KGM/XG hydrogels’ degradation performance | KGM/XG复合凝胶的降解性能影响因素研究
2009
Li Li, Shaanxi University of Technology, Hanzhong (China), School of Material Science and Engineering | Chen Ligui, Shaanxi University of Technology, Hanzhong (China), School of Material Science and Engineering
中国人. ［目的］研究魔芋葡甘聚糖含量、酶浓度对KGM/XG复合凝胶降解性能的影响，为魔芋葡甘聚糖（KGM）水溶胶的应用奠定基础。［方法］首先制备了KGM/XG复合凝胶，进行了水凝胶体外降解试验，并研究了不同KGM用量、酶浓度对水凝胶降解性能的影响。［结果］KGM/XG水凝胶可被含β-葡聚糖苷酶的纤维素酶降解，而不能被不含β-葡聚糖苷酶的胰酶等降解。水凝胶的平均降解速率随着KGM用量的增加而逐渐增加；随着酶浓度的增加，凝胶的降解速率逐渐升高。［结论］该水凝胶保持了KGM 的生物可降解性；降低XG含量能增加凝胶的降解速率；酶浓度的增加能有效地提高凝胶的降解速率。
显示更多 [+] 显示较少 [-]英语. ［Objective］The aim was to study the effect of KGM content and enzyme concentration on degradation performance of KGM/XG hydrogel and lay a foundation for its application. ［Method］ Firstly, prepared KGM/XG hydrogel, then carried out hydrogel degradation test in vitro, and studied effects of different KGM dosage, enzyme concentration on hydrogels’ degradation performance. ［Result］ This hydrogel could be degraded by cellulase with β-glucanase, but it couldn't be degraded by some enzymes such as pancreatin without β-glucanase. The average degradation ratio increased with the increasing concentration of KGM and the increasing concentration of cellulase E0240. ［Conclusion］ This hydrogel maintained the biodegradability of KGM. The hydrogels’ degradation ratio could be increased by increasing the concentration of KGM, or by increasing the concentration of cellulase E0240.
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