Biochemical Engineering Research & Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India.
Biochemical Engineering Research & Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Chandigarh, India.
Int J Biol Macromol. 2019 Sep 15;137:475-482. doi: 10.1016/j.ijbiomac.2019.06.212. Epub 2019 Jun 29.
Hydrogels are three dimensional polymeric structures and are of great importance to industrial sector due to their signature physiochemical and mechanical properties. Use of natural polysaccharides as the components of hydrogel composite is of great interest due to their non-toxic nature, biodegradability, biocompatibility and viscoelastic properties. The present study reports a novel hydrogel composed of xanthan, gellan and pullulan. Unlike, pullulan and xanthan, this tri-composite formed a stable gel having high water retention ability and swelling ratio. The synergistic effects of individual components of the hydrogel on viscoelastic properties and flow behaviour were also studied. The hydrogel composite also indicated swelling ratio in alkaline environment attributed to the ionisation of hydrogel components in response to the presence of OH moieties. Overall results indicated that the composite hydrogel can have plausible application in food industry as it displays viscoelastic nature and flow behaviour index (n) values for composites within the desirable range.
水凝胶是三维聚合结构，由于其独特的物理化学和机械性能，对工业部门非常重要。由于天然多糖具有无毒、可生物降解、生物相容性和粘弹性等特性，因此将其作为水凝胶复合材料的成分具有很大的吸引力。本研究报告了一种由黄原胶、结冷胶和普鲁兰组成的新型水凝胶。与普鲁兰和黄原胶不同，这种三组分复合水凝胶形成了具有高保水能力和溶胀比的稳定凝胶。还研究了水凝胶各组分对粘弹性和流动行为的协同作用。该水凝胶复合材料在碱性环境中也表现出溶胀比，这归因于水凝胶成分在存在 OH 基团时的离子化。总体结果表明，该复合水凝胶可能在食品工业中有合理的应用，因为它显示出粘弹性和流动行为指数 (n) 值，复合水凝胶的 n 值在理想范围内。
