Polygalacturonic acid

Polygalacturonic acid (Galacturonic acid polymer) is transparent colloid, is a major component of the cell wall. Polygalacturonic acid can be used to prepare silver nanoparticles (AgNPs), as an antioxidant and anti-inflammatory that protect cells from destructive effect of elevated ROS and accelerate wound healing. Polygalacturonic acid nanoparticles also displays anti-bacterial activity.

Polygalacturonic acid can be used to format a durable hydrogel, to prolong the effect of drugs. Polygalacturonic acid hydrogel/hyaluronate, conjugated Ibuprofen for example, prevents epidural fibrosis, the severe scar tissue adhesion of laminectomized male adult rats, and increases the efficiency of local inflammation control and reduces the side-effect of Ibuprofen^[1].
Polygalacturonic acid hydrogel/hyaluronate (PGA-HA) (2%, 200 μL; 24 h) shows low cytotoxicity on L929 fibroblasts^[1].
Polygalacturonic acid (PGA) preparing (Ag-PGA/HA)-PVA nanoparticles, shows anti-bacterial activity against gram-positive bacterial strains; Bacillus Subtilis and Staphylococcus Aureus, as well as gram-negative bacterial strain; Escherichia Coli^[2].

Polygalacturonic acid (external application; 14 d) enhances a quick healing of wound infection in albino rats^[2].

[1]. Lin CY, et al. Ibuprofen-conjugated hyaluronate/polygalacturonic acid hydrogel for the prevention of epidural fibrosis. J Biomater Appl. 2016 May;30(10):1589-600.  

[2]. El-Aassar MR, et al. Wound healing of nanofiber comprising Polygalacturonic/Hyaluronic acid embedded silver nanoparticles: In-vitro and in-vivo studies. Carbohydr Polym. 2020 Jun 15;238:116175.