Stability of rutin using pectin-chitosan dual coating nanoliposomes
Alkassoumi Hassane Hamadou, Jiyao Zhang, Chao Chen, Bin Xu
Abstract
This work evaluated the effect of pectin (P) and chitosan (CH) dual coating on rutin (R) loaded nanoliposomes (NLs). Besides R loaded NLs (RNLs), CH coated RNLs (CH-RNLs) and P coated CH-RNLs (P–CH-RNLs) were prepared. The results showed a size increase of NLs due to the polymer coatings, confirming a successful deposition of CH and P onto the surfaces of NLs. A surface charge reversal was observed after coating RNLs and CH-RNLs with CH and P, respectively. The coating resulted in a significant decrease in encapsulation efficiency (EE) from 88.19% in RNLs to 78.89% in CH-RNLs and 73.44% in P–CH-RNLs. Due to protection provided by the P–CH barrier, P–CH-RNLs displayed better thermal, pH, ionic and oxidative stability. NLs were more stable at 4 °C as compared to 25 °C over 8 weeks, and P–CH-RNLs exhibited the best performance overall. This study revealed P–CH coating as a potential route to produce stable NLs for the delivery of hydrophobic rutin.