❓ why
Why do bananas turn brown after ripening?
ScienceFood
Quick Answer
Bananas turn brown because enzymes break down cell walls and react with oxygen, creating brown pigments. As ripening continues, the skin also weakens and darkens.
The Full Story
As bananas ripen, they produce ethylene gas, which triggers changes in the fruit and skin. Enzymes such as polyphenol oxidase react with oxygen and cause browning in damaged or aging tissue, much like an apple turning brown after being cut. The peel also becomes thinner and loses chlorophyll, so the yellow color gives way to brown spots. This process is natural and signals that the fruit is very ripe. Bruising, warmth, and time accelerate the browning, especially in stored bananas.
Key Facts
1.Ethylene helps trigger ripening
2.Polyphenol oxidase causes browning
3.Banana peels darken as chlorophyll breaks down
YouTube Angle
Suggested video title for this topic:
"Why does a bright yellow banana quickly turn brown?"