Synthesis and characterization of a beta-cyclodextrin-copper metal-organic framework for enhanced ethylene adsorption to delay fruit ripening

Name: Sasina Kerdsiri

Organization : Kasetsart University. Faculty of Science

Name: Tanwawan Duangthongyou

Organization : Kasetsart University. Faculty of Science

Email : fscitwd@ku.ac.th

keyword: B-cyclodextrin

LCSH: Ethylene -- Absorption and adsorption

; Carboxymethylcellulose

LCSH: Metal-organic frameworks

LCSH: Copper compounds

Abstract: Ethylene gas is a crucial factor in accelerating fruit ripening, making its adsorption essential for extending the shelf life of fresh produce. This study focused on the synthesis of a Bio-Metal-Organic Framework (bio-MOF) that combines Cu with β-cyclodextrin (β-CD) to enhance ethylene adsorption. The material leverages the known ethylene-absorbing capacity of β-CD and the strong interaction between ethylene and Cu sites. While previous research has explored ethylene absorption using β-CD-K, this study investigated the effect of changing the metal component to Cu on the efficiency of ethylene adsorption, inspired by the proven effectiveness of Cu in HKUST-1. Various characterization techniques were employed to evaluate the properties of the synthesized β-CD-Cu. Fourier-transform infrared spectroscopy (FTIR) confirmed the chemical bonding, and X-ray diffraction (XRD) was used to analyze the crystalline structure. Scanning electron microscopy (SEM) combined with energy-dispersive X-ray spectroscopy (EDS) provided insights into the surface morphology and elemental composition of the material. Ethylene gas adsorption was quantified by gas chromatography (GC). The MOF was incorporated into carboxymethyl cellulose (CMC) to prepare an MOF@CMC film, and its mechanical properties were assessed by measuring the tensile strength and elongation for robustness and flexibility. Owing to its structural characteristics and expected ethylene-Cu interactions, β-CD-Cu is expected to have better ethylene adsorption potential than β-CD-K, providing a promising and sustainable solution for prolonging the storage life of fresh produce.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2025

Modified: 2025-10-28

Issued: 2025-10-28

บทความ/Article

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BibliograpyCitation : In The Chemical Society of Thailand under the Patronage of Professor Dr. Her Royal Highness Princess Chulabhorn Krom Phra Srisavangavadhana and Suranaree University of Technology. Institute of Science. School of Chemistry. Pure and Applied Chemistry International Conference 2025 (PACCON 2025) (pp.456-461). Bangkok : The Chemical Society of Thailand under the Patronage of Professor Dr. Her Royal Highness Princess Chulabhorn Krom Phra Srisavangavadhana in association with the School of Chemistry, Institute of Science, Suranaree University of Technology, 2025

eng

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