The relationship between molecular structure and crystalline and lamellar structures of fifteen types of rice starches was studied. GPC and HPAEC were used for the molecular chain analysis and WAXS, SAXS, and CP/MAS ¹³C NMR were employed for aggregation structural analysis. The amylopectin content and the average lengths of fb₁-chains (the degree of polymerization (DP) 13–24) were positively correlated with the amount of double helices (r² = 0.92 and 0.57, respectively). In contrast, amylose content was positively correlated with the amounts of amorphous materials in starch (r² = 0.77). The amount of double helices, which constitute a major part of the crystalline matrix, was positively correlated with the lamellar ordering (r² = 0.81), and negatively correlated with the thickness of crystalline lamellae (r² = 0.90) and lamellar repeat distance (r² = 0.84). Conversely, the amount of the amorphous matrix was correlated with these parameters in the opposite way (r² = 0.50, 0.75, and 0.75, respectively).

研究了十五种大米淀粉的分子结构与晶体结构和层状结构的关系。GPC和HPAEC用于分子链分析，WAXS，SAXS和CP / MAS ¹³ C NMR用于聚集结构分析。支链淀粉的含量和fb ₁链的平均长度（聚合度（DP）13-24）与双螺旋的量呈正相关（r ²分别为0.92和0.57）。相反，直链淀粉含量与淀粉中无定形物质的含量呈正相关（r ²= 0.77）。构成晶体基质主要部分的双螺旋的量与层状有序正相关（r ² = 0.81），与晶体层状膜的厚度（r ² = 0.90）和层状重复距离负相关（r ² = 0.84）。相反，无定形基质的量与这些参数以相反的方式相关（r ^2分别为0.50、0.75和0.75）。