方法：运用正交设计选取微波法和超声法的最佳工艺条件，用均匀设计选取渗漉法的最佳工艺条件，比较三种方法在最佳工艺条件下的得率。
Design of microwave method and ultrasonic method base on orthogonal, and selecting the best processes of percolation method through uniform design, then compare with the amount of polysaccharide.
结果渗漉提取率较高，而微波法提取则具有提取时间更短的优点。
Results There is a higher extraction rate of percolation, and the microwave extraction method has an advantage of shorter extraction time.
结果渗漉提取率较高，而微波法提取则具有提取时间更短的优点。
Results There is a higher extraction rate of percolation, and the microwave extraction method has an advantage of shorter extraction time.
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