Abstract
The purpose of this study was to select the optimum ultrasound-assisted extraction (UAE) conditions for the extraction of polysaccharides from Pleurotus eryngii (DC. ex Fr.) Que (P. eryngii ). The main factors that affect the extraction yield of polysaccharides such as solid:liquid ratio, ultrasonic power, extraction time and extraction temperature were studied individually. An orthogonal experiment was designed to optimize the extraction parameters. It was found that UAE method was a reliable, simple and effective method for fast extraction of polysaccharides from P. eryngii. The optimum UAE conditions were as followings: Solid:liquid ratio of 1:35, Ultrasonic power of 55 W, Extraction time of 30 min and extraction temperature of 45°C.
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