To prepare the hybrid between natural product and inorganic material, we have utilized layered nanoparticles of Mg/Al mixed hydroxide, which is often referred to layered double hydroxide (LDH), as inorganic part and the root or flower extract of Angelica gigas Nakai as functional natural product. LDHs have been studied as encapsulant for vulnerable bio-substances and the extract of Angelica gigas Nakai have long been utilized as antioxidant agent or in the treatment of inflammation. LDHs with Mg/Al composition was obtained by coprecipitation and then clacined to mixed oxide for reconstruction. The scanning electron microscopic results exhibited that the hybrids have plate-like morphology having ~100nm size and the nanolayers are randomly stacked to create house-of-card structures with many macropores. From high performance liquid chromatography and UV-Vis spectometer, we investigated the amount of encapuslated extracts and the chemical compositions were evaluated with induced coupled plasma-atomic emission spectroscopy and CHNS elemental analysis.

Encapsulation of <i>Angelica gigas Nakai</i> extracts inorganic nanolayers via reconstruction route

244th National Meeting (2012)

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Encapsulation of Angelica gigas Nakai extracts inorganic nanolayers via reconstruction route