Optimization of extraction process of crude polysaccharides from Plantago asiatica L. by response surface methodology

Polysaccharide production from the aerial parts of Plantaoo asiatica L. was carried out using water decoction. Response surface methodology (RSM), based on a five level, four variable central composite design (CCD), was employed to obtain the best possible combination of extraction time (X₁: 1–5h…