Table 4 Techniques employed for the purification of biopolymers
From: Biobased polymers of plant and microbial origin and their applications - a review
Purification techniques | Principle | Reference |
|---|---|---|
Adsorption | It is surface based phenomena in which biopolymers bind with surface of adsorbent | Agbovi and Wilson 2021 [6] |
Chromatography | It is a separation technique based on partial adsorption principle, in which chemical mixture can be transported through mobile phase and molecules can be separated on stationary phase on the basis of differential distribution of solute | Baidurah 2022 [14] |
Membrane separation | Different membrane separation techniques such as ultrafiltration, microfiltration, nanofiltration, elctrodialysis and gas filtration. These techniques are classified according to membrane pore size | Lin et al. 2023 [61] |
Precipitation/ Selective Dissolution | It is based on the solubility of biopolymer in a specific solvent and impurities can be removed. Barium hydroxide, Fehling solution and isopropanol etc. are different solvents being used for precipitation process | Amid and Mirhosseini 2012 [9] |