How do onions get their color?

Onions get their color from a variety of pigments, but the most important one is flavonoids. Here's a breakdown:

* Red Onions: These onions contain anthocyanins, a type of flavonoid that produces red, purple, and blue colors.

* Yellow Onions: They contain quercetin, another type of flavonoid, which gives them their yellow color.

* White Onions: These onions have very low levels of flavonoids, giving them their lighter color.

Other factors that influence onion color:

* Genetics: The variety of onion plays a significant role. Some varieties are bred for specific colors.

* Growing Conditions: Factors like soil pH, sunlight exposure, and temperature can slightly affect onion color.

* Storage: Over time, onions can fade slightly, especially when exposed to light.

Interesting Note: The color of onions doesn't just influence their appearance; it also affects their flavor. Red onions tend to have a slightly sweeter and more pungent flavor than yellow onions, while white onions are milder.