Modern Technological impact in rural society

Society and Technology

1. INTRODUCTION Starch is a naturally occurring polysaccharide found in many plants, widely used in food, packaging, and industrial applications due to its biodegradability and versatility. Extrusion is a high-temperature, short-time processing method that forces material through a die to shape and modify starch properties, enhancing its functionality and digestibility. Ultrasonication uses high-frequency sound waves to modify the structural and physicochemical properties of starch. It can improve solubility, reduce particle size, and alter gelatinization behavior. 1

2. Objective of the Study Modify native starch using ultrasound and extrusion. Study physicochemical and structural changes. Compare ultrasonicated samples (US10,US15,US20). 2

3. PROCEDURE Preparing SG20 and SG25 Starch Strips Materials Required : Native starch Glycerol Distilled water Beaker Stirrer Twin-Screw Extruder Oven.   3 For SG20 (500g) Starch(55%) (275g) Glycerin (20%) (100g) Water (25%) (125g) For SG25 (500g) Starch (55%) (275g) Glycerin (25%) (125g) Water(20%) (100g)