Recent advances in emerging pectin-derived nanocarriers for controlled delivery of bioactive compounds

Pectin is one of the fascinating naturally occurring plant polysaccharides. The unique structural elements endow pectin with emulsifying property, stabilizing effect, and capacity to increase the viscosity of aqueous phase. Thus, the trend of using pectin as wall material for nano delivery application has been rapidly developed. This review article presents recent advances (2016–2022) in the utilization of pectin in the construction of various emerging nanocarriers, including polyelectrolyte nanocomplexes, protein-pectin core-shell nanoparticles, nanoemulsions, nanoliposomes, and nanofibers. These nanocarriers can exhibit an improved protection, stability, and controlled release of bioactive compounds. Better efficacy can be achieved through combining pectin with other biopolymers such as proteins. Here, we discuss the preparation methods, formation, structure, and properties of each nanocarrier. The focus is on the applications and challenges for delivery of bioactive compounds in the functional food field. This review may give an insight of understanding and potential of pectin-derived nanoencapsulating systems to obtain higher bioavailability and heathy benefits of bioactive compounds.