β-Carotene nanodispersions: preparation, characterization and stability evaluation

• Main Authors: Tan, Chin Ping, Nakajima, Mitsutoshi
• Format: Article
• Language: English
• Published: Elsevier 2005
• Online Access: http://psasir.upm.edu.my/id/eprint/39988/1/%CE%B2-Carotene%20nanodispersions%20preparation%2C%20characterization%20and%20stability%20evaluation.pdf; http://psasir.upm.edu.my/id/eprint/39988/

The aim of the present study was to investigate the preparation of β-carotene nanodispersions as potential active ingredients for food formulations. Nanodispersions containing β-carotene were obtained by a process based on an emulsification–evaporation technique. The preparation method consisted of emulsifying an organic solution of β-carotene in an aqueous solution containing emulsifier using two different homogenizers (a conventional homogenizer and a microfluidizer), followed by direct solvent evaporation under reduced pressure. The influence of different homogenizing conditions (pressure and cycle) and two organic/aqueous phase ratios on particle size parameters and content of β-carotene was investigated. In addition, the stability of β-carotene nanodispersions was carried out at a storage temperature of 4 °C. The particle size distribution of β-carotene in nanodispersions was demonstrated with a laser diffraction particle size analyzer and the retention of β-carotene in the prepared nanodispersions was studied by high-pressure liquid chromatography. In general, homogenization pressure and cycle had significant (P < 0.05) effects on various particle size parameters. A volume-weighted mean diameter (D4,3) of β-carotene nanoparticles, ranging from 60 to 140 nm, was observed in this study.