Oil soluble iron: Curcumin derivatives and their complex.

Amin Zarei, Leila Khazdooz, Anahita Khojastegi, Ataf Ali Altaf, Alireza Abbaspourrad

Food chemistry 2024 Jan 15

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Curcumin dibutanoate (CUDB) is a new oil soluble bidentate ligand which shows higher stability against heat and oxidation compared to curcumin. The oil solubility of this ligand increased an order of magnitude over curcumin. This biomolecule showed high digestibility in a simulated intestinal trial and was hydrolyzed in the presence of porcine pancreatin releasing ∼ 91% of the curcumin. When curcumin dibutanoate was complexed with Fe2+, Fe(CUDB)2 was formed as a new iron (II) complex. Due to the high hydrophobicity of the curcumin dibutanoate ligand, the solubility of Fe(CUDB)2 was found to be 2.8 mg/mL in canola oil. The steric hindrance afforded by the CUDB ligand, coupled with its hydrophobicity stabilized the iron (II) oxidation state within the complex compared to FeSO4·7H2O as measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. Fe(CUDB)2 has potential to be a new form of oil-soluble iron supplement which co-delivers iron (II) and curcumin. Copyright © 2023 Elsevier Ltd. All rights reserved.

Citation

Amin Zarei, Leila Khazdooz, Anahita Khojastegi, Ataf Ali Altaf, Alireza Abbaspourrad. Oil soluble iron: Curcumin derivatives and their complex. Food chemistry. 2024 Jan 15;431:137085