压片
淀粉
颗粒(地质)
易碎性
压实
材料科学
复合材料
多孔性
玉米淀粉
粒径
流动特性
填料(材料)
挤压
食品科学
化学
聚合物
物理
物理化学
乙基纤维素
机械
作者
John Rojas,Yerlin Andres Plata Uribe,A Zuluaga
出处
期刊:PubMed
日期:2012-06-01
卷期号:67 (6): 513-7
被引量:4
摘要
Pregelatinized starch is widely used as a pharmaceutical aid, especially as a filler-binder. It is known that the tableting performance of excipients could be affected by their source. The aim of this study was to evaluate the powder and tableting properties of pregelatinized starches obtained from yucca, corn and rice and compare those properties with those of Starch 1500. This material had the lowest particle size, and porosity and largest density and best flow. However, yucca starch and corn starch showed an irregular granule morphology, better compactibility and compressibility than Starch 1500. Their onset of plastic deformation and their strain rate sensitivity was comparable to that of Starch 1500. These two materials showed compact disintegration slower that Starch 1500. Conversely, rice starch showed a high elasticity, and friability, low compactibility, which are undesirable for direct compression. This study demonstrated the potential use of pregelatinized starches, especially those obtained from yucca and corn as direct compression filler-binders.
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