Optimization of Ultrasonic-Assisted Extraction of Polysaccharides from Boat-Fruited Sterculia Seeds

Abstract

Abstract: To find optimal conditions for the ultrasonic-assisted extraction from polysaccharides from boat-fruited sterculia seeds, ultrasonic power and extraction time and solid/solvent ratio were used as independent variables and polysaccharide yield was used as response function in a three-variable, three-level regression analysis. The optimum conditions for the extraction of polysaccharides were 210 W, 28 min and 1:63 (g/mL). Under these conditions, the yield and purity of crude extract were 28.45% and 60.02%, respectively. This ultrasonic-assisted extraction procedure was stable and applicable for the extraction of polysaccharides from boat-fruited sterculia seeds. Compared with microwave-assisted extraction, this procedure required shorter time, saved water and provided increased crude extract yield and content.

Key words: boat-fruited sterculia seeds, polysaccharides, ultrasonic-assisted extraction, yield, response surface analysis

CLC Number:

TS201.1

References

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