Unlocking Quercetin's Neuroprotective Potential: A Focus on Bee-Collected Pollen

Area of Science:

• Natural Product Chemistry
• Neuropharmacology
• Food Science

Background:

• Neurodegenerative disorders (NDDs) are a growing global health concern.
• Synthetic drugs often have side effects, driving the search for natural alternatives.
• Flavonoids, particularly quercetin, show promise in combating NDDs due to their antioxidant activity.

Purpose of the Study:

• To review the prevalence of quercetin and its derivatives in bee pollen (BP).
• To analyze how botanical and geographical origins affect quercetin content in BP.
• To advocate for BP as a natural source for NDD prevention.

Main Methods:

• Literature review of published articles on the phenolic profile of BP.
• Analysis of data on quercetin and its derivatives in BP.
• Theoretical calculations based on recommended dietary intake for quercetin.

Main Results:

• Bee pollen (BP) contains significant amounts of quercetin, averaging up to 1000 mg/kg.
• Twenty-four quercetin derivatives were identified in BP, with rutin being the most abundant.
• Dietary intake of quercetin from BP can range from 0.1% to over 100% of recommended levels, depending on BP source and bioavailability.

Conclusions:

• Bee pollen (BP) is a valuable natural source of quercetin and its derivatives.
• BP can contribute significantly to meeting daily quercetin requirements for NDD prevention.
• Further research into BP's bioavailability is warranted to optimize its use as a natural therapeutic agent.