Preparation and Characterization of Vitamin a Palmitate-Loaded Nanostructured Lipid Carriers as Delivery Systems for Food Products
Vitamin A Palmitate-loaded Nanostructured Lipid Carriers were prepared by High Pressure Homogenization (HPH) technique. The influences of storage conditions such as time and temperature on the physical and chemical storage stability of VAP-NLCs were studied in details. Preparation and physicochemical properties of VAP lipid nanoparticles were investigated using various analytical equipments such as TEM, photon correlation spectroscopy (PCS), laser diffractometry (LD) and ultraviolet spectrophotometer. The respective optimal HPH pressure and cycles were 70MPa and 5 cycles, so VAP-NLC dispersions under the optimized condition gave rise to the entrapment efficiency (EE) of 99.8%, PI of 0.234, mean diameter of 144±1.7 nm (2% VAP loading capacity). In addition, VAP lipid nanoparticle has a distinct spherical shape, its particle sizes were around 60–330 nm according to VAP contents and zeta potential values -18~-23 mV. Furthermore, the pH of VAP-NLC dispersion was near to 7.0. This study showed that VAP-NLC could hopefully be applied for food products.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
R. Kong et al., "Preparation and Characterization of Vitamin a Palmitate-Loaded Nanostructured Lipid Carriers as Delivery Systems for Food Products", Advanced Materials Research, Vols. 236-238, pp. 1818-1823, 2011