"The banana variety Nanicao contains non-starch polysaccharides (NSP), such as galacturons, arabinoxylans, cellulose, and hemicellulose in its cell wall, similar to those found in cereals like oats. The extracted NSP can be used as a component to promote prebiotic and aid in the development of a strong immune system. The amount of NSP extracted varies at different ripeness levels of bananas, and the accumulation of soluble sugars during banana ripening is a hindrance to the purification of NSP this experiment, two extraction methods were used: liquid-solid extraction (SLE) and ultrasonic extraction using ethanol as a solvent (UAE). And evaluate the efficiency of the dissolved sugar extraction process.