Preparation and functional properties of extracts from bee bread.

Area of Science:

• Food Science
• Biochemistry
• Pharmacology

Background:

• Bee bread, a bee product, is recognized for its nutritional value and potential health benefits.
• Its functional properties, including antioxidant and radical scavenging activities, are of significant interest for health food and medicinal applications.

Purpose of the Study:

• To evaluate the protein and total phenolic content of different bee bread extracts.
• To assess the antioxidative and reactive oxygen species scavenging abilities of these extracts.

Main Methods:

• Preparation of three bee bread extracts: hot-water fraction (HWF), water-soluble fraction (WSF), and ethanol-soluble fraction (ESF).
• Quantification of protein and total phenolic content.
• Assay of antioxidative and scavenging activities, including against 1,1-diphenyl-2-picrylhydrazyl (DPPH) and hydroxyl radicals.

Main Results:

• All three extracts exhibited high protein and total phenolic content.
• The water-soluble fraction (WSF) at 100% concentration displayed the highest overall antioxidative and scavenging ability.
• The ethanol-soluble fraction (ESF) at 10% concentration showed the most potent activity against DPPH and hydroxyl radicals.

Conclusions:

• Bee bread extracts possess significant functional properties, particularly antioxidant and radical scavenging activities.
• WSF and ESF show distinct efficacies, suggesting varied applications for different health benefits.
• Bee bread holds promise for increased use as a health food and in medicine due to its demonstrated bioactivities.