【摘要】 以玉米多孔淀粉为原料,三氯氧磷为交联剂制备酯化交联多孔淀粉,利用扫描电子显微镜、布拉班德黏度仪、X-射线衍射等分析仪器对原淀粉、多孔淀粉和酯化交联多孔淀粉的理化性质、流变学性质和微观结构进行分析比较研究。结果表明,经交联处理后的交联多孔淀粉仍是A型图谱,晶形未发生改变,交联多孔淀粉的吸水率、吸油率与原淀粉和多孔淀粉相比有较大提高,冻融稳定性、糊稳定性优于原淀粉和多孔淀粉,交联改性提高了多孔淀粉的结构性能。更多还原

【Abstract】 The cross-linked porous starch was prepared from corn porous starch by using phosphorus oxychloride as cross- linking agents. By SEM, Brabender Viscograph and X-ray diffraction methods, the physical-chemical properties, rheology properties, microstructure properties of starch, porous starch and esterified cross-linked porous starch were analysed. The results showed that the cross-linked porous starch remains the same as in A chart and the crystal form does not change, while the absorption capability, stability of freeze thawing and stability of starch paste are all improved. It indicated that the cross-linked porous process is feasible for improving the starch quality.更多还原