As bananas ripen, enzyme in them turns the starch to sugar. As fruit continues to ripen, sugar content increases. The hydrolysis of starch and the accumulation of sugars in peel and pulp alter both taste and texture of banana fruits.
In banana, sugar is the main soluble solids component which ultimately indicates sweetness.
The sugar increase results in a sweeter, more palatable pulp, associated with optimum fruit quality. The sugar to acid balance is also important for providing the peasant fruit taste.
The sugars content, normally 1-2% in the pulp of green fruits, increase to 15-20% in the ripe pulp.
Soluble sugars in banana pulp are mainly sucrose (66%), glucose (20%), fructose (14%) and only traces of maltose.
Sugar content in banana