Fechner Petra M, Wartewig Siegfried, Kleinebudde Peter, Neubert Reinhard H H
Institute of Pharmaceutics and Biopharmaceutics, Martin Luther University Halle-Wittenberg, W.-Langenbeck-Str. 4, 06120 Halle, Germany.
Carbohydr Res. 2005 Nov 21;340(16):2563-8. doi: 10.1016/j.carres.2005.08.018. Epub 2005 Oct 5.
The retrogradation of untreated wild-type starches (potato, maize, and wheat), waxy maize starches, and one pregelatinized, modified amylose-rich starch was investigated continuously using Raman spectroscopy. The method detects conformational changes due to the multi-stage retrogradation, the rate of which differs between the starches. The pregelatinized, modified amylose-rich starch shows all stages of retrogradation in the course of its Raman spectra. In comparison to amylose, the retrogradation of amylopectin is faster at the beginning of the measurements and slower in the later stages. The untreated starches can be ranked in the order of their rate of retrogradation as follows: potato>maize>wheat.
使用拉曼光谱法持续研究了未处理的野生型淀粉（马铃薯、玉米和小麦）、糯玉米淀粉以及一种预糊化、富含直链淀粉的变性淀粉的回生过程。该方法可检测由于多阶段回生引起的构象变化，不同淀粉的回生速率有所不同。预糊化、富含直链淀粉的变性淀粉在其拉曼光谱过程中显示出回生的所有阶段。与直链淀粉相比，支链淀粉的回生在测量开始时更快，而在后期则较慢。未处理的淀粉按其回生速率排序如下：马铃薯>玉米>小麦。
