Natural Food Colours
Quercetin belongs to which class of flavonoids?
Quercetin belongs to which class of flavonoids?
Try to answer before revealing the correct option and explanation.
Correct Answer
✅ C. Flavonols
Explanation
Quercetin is one of the most abundant dietary flavonols. It is found mainly in onions, apples, berries, and leafy vegetables. Quercetin contributes to antioxidant activity because of its multiple hydroxyl groups that can neutralize free radicals.
Why Other Options Are Incorrect:
- Flavanones: Examples include hesperidin and naringin.
- Anthocyanins: Produce red, purple, and blue colors.
- Isoflavones: Examples include genistein and daidzein from soybean.
Key Concept
Quercetin → Flavonol Onion → Rich source of quercetin Strong antioxidant flavonoid
Related Sub-categories
References
- Damodaran, S., Parkin, K. L. (2017). Fennema’s Food Chemistry (5th Edition). CRC Press.
- Belitz, H. D., Grosch, W., & Schieberle, P. (2009). Food Chemistry (4th Edition). Springer.
- deMan, J. M., Finley, J. W., Hurst, W. J., & Lee, C. Y. (2018). Principles of Food Chemistry (4th Edition). Springer.
- Shahidi, F., & Naczk, M. (2004). Phenolics in Food and Nutraceuticals. CRC Press.
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