Selective extraction of Crocin from Saffron using modified magnetic nanoparticles coated with molecularly imprinted polymer

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Gholami Ali; Golestaneh Mahshid; Bigdeli Azari Hedyeh

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: NANOSCALE Year:2024 | Volume:11 | Issue:1 Page(s): 54-69

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Information Journal Paper

Title

Selective extraction of Crocin from Saffron using modified magnetic nanoparticles coated with molecularly imprinted polymer

Author(s)

Gholami Ali | Golestaneh Mahshid | Bigdeli Azari Hedyeh | Issue Writer Certificate

Keywords

Crocin

Saffron

Molecularly imprinted polymers

Magnetic nanoparticles

Selective extraction

Abstract

Crocin is one of effective ingredients of Saffron, which directly affects Saffron's quality and commercial value. Herein, a simple method has been developed based on magnetic Molecularly imprinted polymers (MMIPs) for sensitive and Selective extraction of Crocin from Saffron. MMIPs were prepared using gentiobiose as the template molecule, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linking agent, and Fe3O4@SiO2 as the magnetic support. Nanoparticle characterizations were performed using various techniques, including Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), and thermogravimetric analysis (TGA). Different parameters affecting extraction efficiency, isothermal absorption experiments, kinetics absorption experiments, and the selectivity of MMIPs was studied. The analytes were determined by UV-Vis spectrometry and high-performance liquid chromatography (HPLC). The result showed that the pseudo-second-order model describes the sorption of Crocin, and the adsorption equilibrium data fit with the Freundlich model. Also, the sorbent had a homogeneous structure, and the Crocin sorption occurred through multilayer reversible sorption. Under the optimized conditions, the linear range was between 0.05-50 mgL-1. The limit of detection and limit of quantification were 0.014 and 0.10 mgL-1, respectively. The proposed method in extracting Crocin from real samples showed satisfactory results.

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