A bruise can only appear when there is circulation, right?
Then why do fruits and vegetables, especially bananas, develope brown spots/bruises when they get hit, even after they being desolidarized from their tree?
Is there still “circulation” in the fruit? Is it oxidation? Or a form of osmosis?
In: Biology
You are thinking of human bruises which are the leakage of blood from capillaries after being damaged. Fruit bruises are are the result of oxygen (allowed in by the damage) reacting with an enzyme in the fruit to cause the “browning”.
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