Singh Vandana, Tiwari Ashutosh, Tripathi Devendra Narayan, Sanghi Rashmi
Department of Chemistry, University of Allahabad, Allahabad-211002, India.
Biomacromolecules. 2005 Jan-Feb;6(1):453-6. doi: 10.1021/bm049518b.
Plants of Ipomoea genus are widely distributed in India as wild vegetation and are reported source for the seed gums. Seed gums from Ipomoea dasysperma, Ipomoea hederacea, and Ipomoea palmata plants were grafted with polyacrylonitrile (PAN) using potassium persulfate/ascorbic acid redox initiator for modifying their properties for potential industrial applications. Under identical grafting conditions, the extent of the grafting was observed to be dependent on the galactose-to-mannose ratio and the degree of the branching in the galactomannans. Viscosity, gel formation, film formation, and the shelf life of the grafted gum solutions and water and saline retention capacity of the grafted seed gums were determined and compared with the parent gums. Water retention of the alkalie hydrolyzed grafted seed gums were also studied. Grafted gums were characterized using FTIR, NMR, and XRD analysis.
甘薯属植物作为野生植被在印度广泛分布，据报道其种子是树胶的来源。使用过硫酸钾/抗坏血酸氧化还原引发剂将来自毛籽甘薯、裂叶牵牛和掌叶牵牛植物的种子树胶与聚丙烯腈（PAN）接枝，以改善其性能，用于潜在的工业应用。在相同的接枝条件下，观察到接枝程度取决于半乳糖与甘露糖的比例以及半乳甘露聚糖中的分支程度。测定了接枝树胶溶液的粘度、凝胶形成、成膜性和保质期以及接枝种子树胶的保水和保盐能力，并与母体树胶进行了比较。还研究了碱水解接枝种子树胶的保水性。使用傅里叶变换红外光谱（FTIR）、核磁共振（NMR）和X射线衍射（XRD）分析对接枝树胶进行了表征。
