直链淀粉是一种聚葡萄糖的多糖，与支链淀粉（amylopectin）一起构成淀粉。支链淀粉的糖苷键是α-1，4键。直链淀粉是用于识别，区分和鉴定淀粉酶（S）。直链淀粉被用作增稠剂，胶凝剂和乳化稳定剂。直链淀粉是用在药物运输膜和膜的制备中具有潜在的作用。 血清淀粉酶的底物。 用途 马铃薯中的直链淀粉已用作标准品，以通过碘结合比色法测定大米淀粉的表观直链淀粉含量（AAC）。 Amylose is a polyglucose polysaccharide which together with amylopectin makes starch(s). The glucosidic bonds of amylopectin are α-1,4 linkages. Amylose is used to identify, differentiate and characterize amylase(s). Amylose is used as a thickening agent, a gelling agent and emulsion stabilizer. Amylose is used in the preparation of films and membranes with potential use in drug A substrate for serum amylase. Application： Amylose in potato has been used as a standard to determine the apparent amylose content (AAC) of rice starch by iodine-binding colorimetry.