Use of Chitosan as a Material Stabilizer for Acidic Polysaccharides

Abstract

Chitosan was used in this study to form polyelectrolyte complex (PEC) with water-soluble acidic polysaccharides, including gum arabic and pectin. Porous membranes made of gum arabic or pectin only were quiet fragile. After incorporating with chitosan, the usability of the membranes was greatly improved. The results showed that the gum arabic/chitosan composite membranes had detectable tensile stress and elongation capability. Moreover, the pectin/chitosan composite membranes had significantly improved tensile stress and elongation capability. Both of the two composite membranes had greater water uptake capability than the membranes composed of chitosan only. We have demonstrated that chitosan can function as a material stabilizer to maintain the solid status of the acidic polysaccharides and thus improve the performance of these acidic polysaccharides.

A Review of Gum Hydrocolloid Polyelectrolyte Complexes (PEC) for Biomedical Applications: Their Properties and Drug Delivery Studies

“…The addition of gum Arabic in the chitosan membrane improved the tensile strength of than pectinchitosan membrane. However, gum Arabic did not improve the elongation properties of the chitosan membrane [25]. The study by Tsai et al (2014) using the combination of pectin/gum Arabic/chitosan gave similar results; the best tensile strength was obtained at the ratio of C:P/A at 0.84:0.8.…”

“…Gellan gum (G) Chitosan (C) (% w/v) ratio G:C of (1.5, 1.75, 2):1, acid and alkaline condition [24] Gum Arabic (A) Chitosan % weight ratio A:C = 7:3 [25] Xanthan gum (X) Chitosan % weight ratio X:C = (2-10):0.5, spray dried and freeze dried [26] Carboxymethylated cashew gum Chitosan pH 4, ionic strength 0.05, molar charge ratio n + /n − : 0.1 to 20 [27] Gellan gum Acrylic ion exchange resin Weight ratio polyanion solution:acrylic ion exchange resin = 5:5, pH 5.5, 25 Gellan gum TiO 2 , ZnO, Ag nanoparticles (NP) (gram) weight ratio G:NP = 1:0.2, 1:0.4, and 1:0.6 [30] Gum karaya (K) Chitosan (gram) Weight ratio K:C = 0.938:0.062 [31] Methacrylated gellan gum (MeGG) Chitosan Ratio MeGG:C = 2:1, 1:1, and 1:2. pH MeGG 5.42 (−17 mV), pH Chitosan 4.06 (+38 mV) [32] Xanthan gum Chitosan % weight ratio X:C = 2:1, 1:1, and 0.5:1, 25 • C, volume of each polymers is 37.5 mL [33] Xanthan gum Ozarelix (O) Mass ratio X:O = 1:6, each polymer was dissolved in pH 6 of deionized water [34] Carboxymethyl gum kondagogu (CMGK) Chitosan (% w/v) ratio CMGK:C = 0.01:0.05 until 0.1:0.2 (statistical studies) [35] Gum ghatti (GG) Chitosan (% w/v) ratio GG:C = 0.1:0.05 until 0.5:0.25 (statistical studies) [36] Gum kondagogu (GKG) Chitosan Weight ratio GKG:C = 10:1 until 50:1, pH 1.2-6.0 [37] Gum odina (GO) Chitosan Weight ratio GO:C = 4:1, 5:1, 6:1. pH 4.5 [38] Xanthan gum Chitosan (% w/v) ratio X:C = 0.7:0.7 and 1.0:0.7 with pH Chitosan 4.5 and 6.2 [39] Alginate Chitosan Weight ratio polyanion:C = 75:75 [40] Xanthan gum…”