Bioactive Compound Extraction from Avocado By-products
Summary
Avocado processing generates substantial volumes of peel, seed and paste residues that are rich in lipophilic and hydrophilic bioactive compounds. These by-products contain polyphenols, flavonoids, carotenoids and other antioxidant molecules with potential applications in food, nutraceutical and cosmetic industries. The environmental and economic impact of discarding such residues has driven research towards green and scalable extraction methods. Novel techniques such as deep eutectic solvents, microwave-assisted extraction, autohydrolysis and advanced mechanical disruption enable improved recovery yields while reducing reliance on toxic organic solvents. Optimisation protocols, often based on response surface methodology, balance operational parameters—temperature, time, solvent composition—to maximise phenolic and flavonoid content alongside antioxidant or antimicrobial efficacy. Valorisation routes encompass the incorporation of extracts into functional foods, edible coatings and active packaging, as well as their development into phytopharmaceutical ingredients. Across these initiatives, the integration of sustainable processing aligns with circular economy principles, transforming low-value waste into high-value resources and reinforcing the global significance of avocado by-product valorisation.
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Bioactive Compound Extraction from Avocado By-products publication trend
The graph below shows the total number of articles in bioactive compound extraction from avocado by-products across all publications each year (not limited to Nature Index journals).
Technical terms
Bioactive compound: A molecule from food or plant sources that exerts biological effects beyond basic nutrition, such as antioxidant or anti-inflammatory activity.
Polyphenol: A class of plant metabolites characterised by multiple phenolic rings, known for strong antioxidant properties.
Flavonoid: A subclass of polyphenols with a C6–C3–C6 structure that contributes to antioxidant, antimicrobial and anti-inflammatory effects.
Deep eutectic solvent (DES): A eutectic mixture of two or more components that forms a liquid phase at ambient temperature, used as a green alternative to conventional solvents.
Autohydrolysis: A hydrothermal technique where water under subcritical conditions acts as a solvent and catalyst to release soluble compounds from biomass.
Response surface methodology (RSM): A statistical and mathematical technique used to model and optimise processes by evaluating the relationships between multiple variables and desired responses.
References
- Valorization of Avocado Seed Wastes for Antioxidant Phenolics and Carbohydrates Recovery Using Deep Eutectic Solvents (DES). Antioxidants (2023).
- Study of Influence of Extraction Method on the Recovery Bioactive Compounds from Peel Avocado. Molecules (2023).
- Hydrothermal treatment of avocado peel waste for the simultaneous recovery of oligosaccharides and antioxidant phenolics. Bioresource Technology (2021).
- Simultaneous Optimization of Microwave‐Assisted Extraction of Phenolic Compounds and Antioxidant Activity of Avocado (Persea americana Mill.) Seeds Using Response Surface Methodology. Journal of Analytical Methods in Chemistry (2020).
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