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Study on Ultrasonic Assisted Extraction of Polysaccharides from Cordyceps Militaris

Shouqin Zhang

Abstract

The extraction of polysaccharides from Cordyceps militaris by ultrasonic technology was studied and the effects of solvent,ultrasonic power,extraction time,solid-liquid ratio on yield of polysaccharides were investigated.The optimized conditions were determined through orthogonal test:60 % ethanol,ultrasonic power was 250 W,solid-liquid ratio was 1∶35 (g/mL),extraction time was 13 min.The yield was 25.89 % under optimized conditions.

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Key concepts: Cordyceps militaris, Yield (engineering), Extraction (chemistry), Polysaccharide, Ultrasonic sensor, Solvent, Chromatography, Materials science