What compound is responsible for the indigo flesh of purple sweet potatoes?
Answer
Anthocyanins
The vibrant indigo color observed in the flesh of purple sweet potatoes is directly attributed to the presence of anthocyanins. Anthocyanins are powerful pigments belonging to the flavonoid group of antioxidants. These compounds are widely recognized in nutrition science for their potential health benefits, often linked to protective effects against oxidative stress. While the sweet potato offers many nutrients, it is specifically the high concentration of these anthocyanins that gives the purple variety its distinctive hue, differentiating it visually and chemically from other potato types.
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