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September 10, 2025Journal of the Science of Food and Agriculture

Optimization of flavonoid extraction from Tarocco orange (Citrus sinensis L. Osbeck) peel using supercritical CO2 followed by ethanol: chemical composition, antioxidant, and antibacterial activities

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Authors

JLJielin LuoYPYaokun PangDLDan Liu

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Overview

This study demonstrates enhanced flavonoid extraction using supercritical CO2 and ethanol methods, suggesting improved bioactivity.

Key Points

  • The two-step extraction process significantly increased total flavonoids by 11.75% and polymethoxyflavones by 19.55%.
  • Qualitative analysis identified seven additional flavonoids, showcasing the benefit of the combined extraction method.
  • Antioxidant capacity was potent in residue ethanol extracts, while supercritical CO2 extracts exhibited superior antimicrobial activity.
  • This novel approach enables polarity-targeted flavonoid extraction, with implications for broader industrial applications.

Cite This Study

Luo et al. (2025) studied this question.

synapsesocial.com/papers/68d413ee713b0b5dfea619dahttps://doi.org/10.1002/jsfa.70136
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