The Effect of Some Extraction Solvents on the Chemical Structure of the Starches from tobacco Leaf and Potato Tubers

Abstract

Tobacco leaf starch has been isolated as granules by mechanical extraction, and the viscosity, amylose content, f3-amylolysis limit, starch-iodine complex absorption spectrum, and apparent chain length compared with samples extracted by perchloric acid, sodium hydroxide, and chloral solution and purified as the starch-iodine complex. The efficiency of extraction of these methods was also compared. The same comparisons were made with potato granules and potato granules treated with these extracting reagents.