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Optimization of Extraction Technology and Property Analysis of CORTEX
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Abstract ［Objective］To optimize the extraction conditions of CORTEX ACANTHOPANACIS polysaccharides and analyze its property，so as to
provide a foundation for the development and utilization of CORTEX ACANTHOPANACIS polysaccharides． ［Method］By employing single factor experiment and orthogonal test，the extraction process of CORTEX ACANTHOPANACIS polysaccharides was optimized． After purification by concentration，dialysis and ethanol precipitation，the solubility，reducing sugar and protein of CORTEX ACANTHOPANACIS polysaccharides were determined． CORTEX ACANTHOPANACIS polysaccharides were finally identified by IR spectrum． ［Result］The optimum extraction conditions were： 90 ℃
extraction temperature，3 extraction times，100 solvent quantity and 2． 0 h extraction time． Under this condition，the yield of CORTEX ACANTHOPANACIS polysaccharides was up to 9． 38%． Good in solubility，rich in starch and low in reducing sugar，CORTEX ACANTHOPANACIS polysaccharides had a typical characteristic spectrum of polysaccharide． ［Conclusion］The optimum extraction conditions of CORTEX ACANTHOPANACIS
polysaccharides and their properties were obtained in this study，which provided a foundation for the development and utilization of CORTEX ACANTHOPANACIS polysaccharides．
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