Document Type : Original Article
Authors
1
Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
2
Polymer Department, Technical Faculty, South Tehran Branch, Islamic Azad University, Tehran, Iran
10.2234/crt.2024.187183
Abstract
Herein, Garcinia cambogia (GC) was introduced into the structure of sodium montmorillonite (Na+-MMT), and then the antimicrobial properties of the new product (GC-MMT) were evaluated. The results of the GC-MMT evaluation by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and thermogravimetric analysis (TGA) confirmed the presence of GC in the structure. The XRD results showed that after the exchange process, the peak appeared at lower values of 2θ and the d-spacing increased, which was due to the presence of GC. Also, the TGA results showed that approximately 17.5 wt.% of GC was present in the GC-MMT structure. The results of the antimicrobial evaluation showed that GC-MMT has an inhibitory and killing effect against Gram-positive and Gram-negative bacteria. In fact, GC contains bioactive compounds such as fukugetin, garcinol, guttiferone k, oxy-guttiferone k, arginine, glutamine, hydroxy citric acid, malic acid, citric acid, galic acid, procyanidine, which have the ability to exert antimicrobial properties.
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