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Incorporation of Glycine max Merrill Extract into Layered Double Hydroxide through Ion-Exchange and Reconstruction
Open AccessArticle

Zingiber officinale Extract (ZOE) Incorporated with Layered Double Hydroxide Hybrid through Reconstruction to Preserve Antioxidant Activity of ZOE against Ultrasound and Microwave Irradiation

by Hyoung-Jun Kim 1,†, Su-Bin Lee 1,†, Ae-Jin Choi 2 and Jae-Min Oh 1,*
1
Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Korea
2
Department of Agrofood Resources, National Institute of Agricultural Sciences of RDA, Wanju 55365, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nanomaterials 2019, 9(9), 1281; https://doi.org/10.3390/nano9091281
Received: 31 July 2019 / Revised: 21 August 2019 / Accepted: 4 September 2019 / Published: 8 September 2019
(This article belongs to the Special Issue Nanostructured Materials and Natural Extract)
We prepared Zingiber officinale extract (ZOE) incorporated in a layered double hydroxide (LDH) hybrid through a reconstruction method in order to preserve the antioxidant activity of ZOE from ultrasound and microwave irradiation. X-ray patterns, infrared spectroscopy, and scanning electron microscopy suggested that ZOE moieties were encapsulated in the interparticle space of reconstructed LDH, thus preserving its intact structure. Dynamic light scattering and zeta-potential measurement also supported the hypothesis that ZOE moieties were located in the interparticle pore of LDH rather than at the surface of LDH particles. Thermogravimetry analysis revealed that thermal stability of encapsulated ZOE could be enhanced by LDH encapsulation. Radical scavenging assay showed that antioxidant activity of ZOE–LDH hybrid was increased after ultrasound and microwave irradiation, while ZOE itself dramatically lost its antioxidant activity upon ultrasound and microwave treatment. View Full-Text
Keywords: layered double hydroxide; Zingiber officinale extract; antioxidant activity; ultrasound; microwave irradiation; protection layered double hydroxide; Zingiber officinale extract; antioxidant activity; ultrasound; microwave irradiation; protection
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Kim, H.-J.; Lee, S.-B.; Choi, A.-J.; Oh, J.-M. Zingiber officinale Extract (ZOE) Incorporated with Layered Double Hydroxide Hybrid through Reconstruction to Preserve Antioxidant Activity of ZOE against Ultrasound and Microwave Irradiation. Nanomaterials 2019, 9, 1281.

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