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J Food Sci Technol. 2015 Oct;52(10):6143-56. doi: 10.1007/s13197-015-1742-2. Epub 2015 Feb 17.

Curcumin loaded self assembled lipid-biopolymer nanoparticles for functional food applications.

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Institute of Research and Development, Gujarat Forensics Sciences University, Gandhinagar, Gujarat 382 007 India.
Medicinal Chemistry and Pharmacology Division, Indian Institute of Chemical Technology, Habsiguda, Hyderabad, 500 037 India.


The supramolecular nano-assemblies formed by electrostatic interactions of two oppositely charged lipid and polymer have been made and used as nanocarriers for curcumin to address its bioavailability and solubility issues. These curcumin encapsulated nano-supramolecular assemblies were characterized with respect to their size (dynamic light scattering), morphology (TEM, SEM), zeta potential (Laser Doppler Velocimetry), encapsulation efficiency (EE), curcumin loading (CL) etc. Stability of the nano-assemblies was assessed at different storage times as a function of varying pH and temperature. The physicochemical characterization of nano-assemblies was performed using Fourier Transform Infra Red Spectroscopy (FT-IR) and Differential Scanning Calorimetry (DSC). The in-vitro antioxidant lipid peroxidation (TBARS), radical scavenging (DPPH, NO, H2O2, reducing power) activity assays of powdered curcumin and nano-encapsulated curcumin were performed. It was found that nano-encapsulated curcumin were roughly spherical in shape, presented high positive zeta potential (>30 mV), monodisperse (polydispersity index <0.3), amorphous in nature, stable in the pH range of 2-6 and have enhanced antioxidant potency in comparison to crystalline curcumin in aqueous media. In conclusion, the curcumin encapsulated nanocarriers system has great potential as functional food ingredient of natural origin.


Antioxidant; Aqueous food; Nano-encapsulation; Supramolecular assemblies

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