Robusta Semi Ripe Bananas are around 6-7 inches long. Robusta has a dissimilar sweet flavor, good smell and the texture is mushy and smooth. They come neatly filled in their own wrapper, want not be washed before eating and are very moveable too. One banana supplies 30 percent of the daily B6 must and is rich in Vitamin C and potassium. It also has trace amounts of numerous amino acid, including tryptophan get during our diet.