Is it still edible?
Yes.
ANNOUNCEMENT
If the buyer chooses eats a portion of the banana that is the same size as their thumb and the buyer posts a video of it on youtube then the artist will refund HALF of the purchase price of the art work. I admit this is just to one up that punter Maurizio Cattelan.*
*eligible buyers must be 18 years old where they live. They need to keep the banana down for at least 1 minute after. @Killyou, I will pay for the other half if you want it.