Using photomicroscopic analytical method,degradation process of potato starch in noncrystalline granular state by microorganisms was investigated in detail.

• 用光学显微分析测试方法,以原马铃薯淀粉为参照,对非晶颗粒态马铃薯淀粉在微生物作用下的降解过程进行了观察和研究。