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用原子力显微镜 ( AFM)对西洋参多糖的微观形貌进行观察 ,发现 PPQ- d呈多股紧密并行螺旋形排列 .这种现象是由于该多糖中所含糖醛酸发生糖链间氢键缔合所致
The microcosmic morphology of the American ginseng polysaccharides was observed by atomic force microscopy (AFM). It was found that the PPQ-d was arranged in a multi-strand tightly parallel spiral arrangement. This phenomenon is due to the occurrence of hydrogen bonds between sugar chains in the uronic acid contained in the polysaccharide. Caused by