The influence of twin-screw extrusion (TSE), cold plasma (CP, 1, 5, and 9 min), and their combination (TSE-CP) treatment on the structural, physicochemical, rheological, solubility, and in vitro digestive properties of potato starches were studied. The results showed that CP slightly changed the starch granules morphology, maintained the growth ring and crystalline structure, promoted depolymerization of the amylopectin branch chain, and increased crystallinity and the ΔH value. It is worth noting that the resistant starch content increased from 84.80 to 86.46% in the short time CP modified potato starch. Meanwhile, TSE and TSE-CP treatments influenced surface morphology, growth ring of potato starch significantly. However, the dually modified potato starch using combined TSE and CP treatments promoted depolymerization of longer chains, increased the proportion of shorter chains and solubility, and improved the degree of hydrolysis. Furthermore, the single and dual treatments did not change the FT-IR spectra pattern. This study suggests that the combination between TSE and CP had more profound modification than the single treatment. The TSE combined with CP is an eco-friendly, thermal, and non-thermal combination technology, which can improve the multi-scale structure of starch and enhance physicochemical properties. Also, the dual treatment can be used to produce modified starch for industrial applications.

双螺杆挤出 (TSE)、冷等离子体（CP，1、5 和 9 分钟）及其组合 (TSE-CP) 处理对结构、物理化学、流变学、溶解度和体外的影响研究了马铃薯淀粉的消化特性。结果表明，CP略微改变了淀粉颗粒的形态，保持了生长环和晶体结构，促进了支链淀粉支链的解聚，提高了结晶度和ΔH值。值得注意的是，CP改性马铃薯淀粉在短时间内抗性淀粉含量从84.80%增加到86.46%。同时，TSE和TSE-CP处理显着影响马铃薯淀粉的表面形态、生长轮。然而，使用 TSE 和 CP 联合处理的双重改性马铃薯淀粉促进了较长链的解聚，增加了较短链的比例和溶解度，并提高了水解度。此外，单一和双重处理没有改变 FT-IR 光谱模式。这项研究表明，TSE 和 CP 之间的组合比单一治疗具有更深刻的改变。TSE与CP结合是一种环保、热、非热组合技术，可以改善淀粉的多尺度结构，增强理化性质。此外，双重处理可用于生产工业应用的改性淀粉。