The new extraction technologies of citrus flavonoids in recent five years were reviewed, including low eutectic solvent extraction, subcritical fluid extraction and magnetic molecular blot selective extraction.the bioactivities and mechanisms of citrus flavonoids, such as antioxidant, anti-inflammatory, antibacterial, anti-obesity, anti-diabetes, anti-cancer, intestinal protection, cardiovascular protection, liver protection and neuroprotection, were also expounded, and suggestions for further study of citrus flavonoids were proposed.

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