作者: Manisha Guha , S. Zakiuddin Ali
关键词: Chromatography 、 Degradation (geology) 、 Sepharose 、 Extrusion 、 Fraction (chemistry) 、 Amylopectin 、 Amylose 、 Starch 、 Gel permeation chromatography 、 Chemistry
摘要: ABSTRACT Effect of barrel temperature (80°–100°C) and amylose content (28.6 gkg−1, 22.3 gkg−1 5.0 gkg−1) rice upon extrusion cooking on macromolecular profile starch was studied by gel permeation chromatography (GPC) the flour Sepharose CL-2B. Starch in all samples separated into two main fractions, viz. Fraction-I, a high molecular weight, excluded gel, amylopectin, Fraction-II, low that entered amylose. Extrusion led to degradation weight fraction starch, extent increasing with severity conditions. The absorption maxima (λ max) iodine complex fraction-I showed an increase after this more non-waxy variety than waxy.