Insights into Sweet Corn Starch Extraction Methods: A Comparative Analysis

Abstract

Abstract The study was conducted with the objectives to isolate and characterize sweet corn starch extracted by different methods. The starch from sweet corn was extracted using three extraction methods viz. distilled water, NaOH and Na2So4. The syneresis of the treatments increased with increase in storage time. The maximum syneresis among the treatments was observed in Sweet Corn Starch-Distilled Water at the end of the storage period. There was significant decrease in light transmittance of the starch extracted by different methods with increase in storage period. The swelling power of the starch in all the treatments increased significantly with increase in storage period. The L* value of Sweet Corn Starch- Na2SO4 was higher as compared to Sweet Corn Starch-Distilled Water and Sweet Corn Starch-NaOH. FTIR results showed that the starch extracted by Distilled water treatment has higher O-H, C-H, and C-O bending related with OH showed higher intensity as compare to other treatments. It was also observed that starch extracted by different treatments posses’ similar chemical structure.