Using restructuring technology, A- or B-type crystalline granular potato starch was produced from amorphous granular potato starch (AGPS). AGPS was prepared using ethanol-heat processing, and hydrothermal treatments were performed with different moisture contents (18, 29, 200% d.b.) and temperatures (4, 25, 40, 60, 80 °C) for 3 weeks. AGPS showed no endothermic peak in a DSC thermogram, while hydrothermally treated AGPS (HAGPS) revealed endothermic peaks. In X-ray diffraction, AGPS displayed an amorphous pattern, and HAGPS displayed A- or B-type crystalline patterns depending on treatment temperature and moisture content. Neither AGPS nor HAGPS had typical RVA pasting curves, and their viscosities gradually increased. Raman spectroscopy and FT-IR confirmed that ordered structure and crystalline regions increased in HAGPS. Resistant starch (RS) and slowly digestible starch (SDS) contents of HAGPS increased but rapidly digestible starch (RDS) content decreased compared to AGPS. These results elucidated that hydrothermal treatment could change the physicochemical properties of AGPS and produce an identical material, such as granular potato starch with A-type and B-type crystalline granular potato starch.

使用重组技术，由无定形马铃薯淀粉（AGPS）生产A型或B型结晶马铃薯淀粉。使用乙醇热处理制备AGPS，并在不同的水分含量（18、29、200％db）和温度（4、25、40、60、80°C）下进行水热处理3周。AGPS在DSC温谱图中未显示吸热峰，而水热处理的AGPS（HAGPS）则显示了吸热峰。在X射线衍射中，取决于处理温度和水分含量，AGPS显示出无定形图案，而HAGPS显示出A型或B型晶体图案。AGPS和HAGPS都没有典型的RVA粘贴曲线，并且它们的粘度逐渐增加。拉曼光谱和FT-IR证实HAGPS中的有序结构和晶体区域增加。与AGPS相比，HAGPS的抗性淀粉（RS）和缓慢消化性淀粉（SDS）含量增加，但快速消化性淀粉（RDS）含量降低。这些结果说明水热处理可以改变AGPS的理化性质并产生相同的物质，例如具有A型和B型结晶性马铃薯颗粒淀粉的马铃薯颗粒淀粉。