Alternative Methods of Bioactive Compounds and Oils Extraction from Berry Fruit By-Products-A Review

Berry waste isn't just trash—it's a treasure trove of polyphenols and nutritious oils, waiting to be unlocked with smarter, greener extraction methods.

Berry fruit by-products—seeds, skins, and pulp left after juicing—are packed with polyphenol compounds and highly nutritious oils. In a circular economy, these leftovers can be reborn as valuable ingredients. But getting them out isn't always easy. Traditional solvent extraction often falls short, struggling to achieve high yields or target specific compounds.

Enter the alternatives. Ultrasound-assisted extraction uses sound waves to disrupt cell walls, while pulsed electric fields zap the material to enhance release. Microwave-assisted extraction heats from within, and supercritical fluid extraction uses pressurized CO2 for a clean, selective pull. These methods don't just boost efficiency—they're also greener, consuming less energy, solvent, and time.

This review pulls together studies on these non-conventional techniques, examining how they influence the composition of extracts and oils from berry waste. The takeaway? With the right tool, berry by-products can become a sustainable source of high-value bioactives, turning waste into wellness.

Key Points

• Berry by-products are rich in polyphenols and oils.
• Alternative extractions boost yield and selectivity.
• Green methods save energy, solvent, and time.