Preparation and Stability Evaluation of Pectin Coated Galanga Essential Oil Liposomes

摘要

Galanga essential oil liposomes were prepared by ethanol injection method, and used pectin to coat galanga essential oil liposomes. The average diameter, PDI, zeta potential, entrapment efficiency and storage stability of pectin-coated galanga essential oil liposomes were investigated. Results showed that pectin-coated galanga essential oil liposomes (concentration of pectin (0.3%, w/v)) had similar entrapment efficiency (32.81±3.72%～35.58±3.53%), and the average diameter of liposomes generally increased from 65.72±5.81 nm to 125.62±13.35 nm, the zeta potential values of liposomes decreased from -3.31±1.12 mV to -35.53±2.45 mV. Then stored at 4°C and 25°C for 10 weeks, the pectin-coated galanga essential oil liposomes showed better storage stability, with the little change of average diameter and leakage of galanga essential oil.