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Direct compaction (DC) attracts more and more attention for tablet manufacturing; however, its application in natural plant product (NPP) tablets is still extremely limited. In this study, 8 kinds of composite particles (CPs) based on the Zingiberis Rhizoma extracted powder (ZR) (a natural plant product powder with poor DC properties) were prepared with different shell materials, including hydroxypropyl methylcellulose (HPMC), polyvinylpyrrolidone (PVP), dextran, inulin, mannitol, silica, and their combinations. Their physical properties and compacting parameters were characterized comprehensively. The results demonstrated that (i) fluid bed coating was not a simple process of superposition and transmission of the physical properties of raw materials; and (ii) all the shell materials studied could improve the DC properties of problematic ZR to some degree and the combination of 7% HPMC and 1% silica showed to be the best to markedly improve both the compactibility and flowability of ZR. As a whole, by virtue of the design of core-shell particles, qualified tablets with high ZR loadings were successfully produced via continuous DC in this study. These findings are beneficial to boosting the development of natural plant tablets through DC.
This article was published in the following journal.
Name: International journal of pharmaceutics
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Specialized regions of the cell membrane composed of pits coated with a bristle covering made of the protein CLATHRIN. These pits are the entry route for macromolecules bound by cell surface receptors. The pits are then internalized into the cytoplasm to form the COATED VESICLES.
TRANSPORT VESICLES formed when cell-membrane coated pits (COATED PITS, CELL-MEMBRANE) invaginate and pinch off. The outer surface of these vesicles is covered with a lattice-like network of COP (coat protein complex) proteins, either COPI or COPII. COPI coated vesicles transport backwards from the cisternae of the GOLGI APPARATUS to the rough endoplasmic reticulum (ENDOPLASMIC RETICULUM, ROUGH), while COPII coated vesicles transport forward from the rough endoplasmic reticulum to the Golgi apparatus.
Vesicles formed when cell-membrane coated pits (COATED PITS, CELL-MEMBRANE) invaginate and pinch off. The outer surface of these vesicles is covered with a lattice-like network of the protein CLATHRIN. Shortly after formation, however, the clathrin coat is removed and the vesicles are referred to as ENDOSOMES.
Tablets coated with material that delays release of the medication until after they leave the stomach. (Dorland, 28th ed)
Vesicles formed when cell-membrane coated pits (COATED PITS, CELL-MEMBRANE) invaginate and pinch off. The outer surface of these vesicles are covered with a lattice-like network of coat proteins, such as CLATHRIN, coat protein complex proteins, or CAVEOLINS.