Nutraceuticals and Bioactive Compound Extraction Techniques

Nutraceuticals encompass foods or food‐derived substances that convey health benefits exceeding basic nutritional value, often through anti‐inflammatory, antioxidant or metabolic regulatory activities. The key challenge in their development lies in the efficient isolation of bioactive compounds—such as polyphenols, flavonoids, terpenes and vitamins—from complex biological matrices. Conventional methods, notably solvent maceration and Soxhlet extraction, remain widely used but suffer from long processing times, high energy consumption and potential thermal degradation. In response, a suite of green and intensified technologies has emerged, including microwave-assisted extraction (MAE), ultrasonic-assisted extraction (UAE), supercritical fluid extraction (SFE), pulsed electric fields (PEF) and high-pressure assisted extraction (HPAE). These approaches improve mass transfer, reduce solvent volumes and shorten extraction durations while preserving compound integrity. Complementary analytical platforms—chiefly liquid and gas chromatography coupled to high-resolution mass spectrometry—enable detailed fingerprinting and quantification of isolated fractions, thus ensuring reproducibility, authenticity and bioefficacy. Together, these advances underpin more sustainable supply chains for nutraceutical ingredients, allow valorisation of agro-industrial by-products and support tailored formulations for personalized nutrition and therapeutic adjuncts.

Research from Nature Portfolio

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Research from all publishers

Recent reviews have mapped the landscape of green extraction methods applied to plant materials, highlighting MAE, UAE, HPAE, high-voltage electric discharge and SFE as key tools for recovering high‐added‐value bioactives in an eco-efficient manner. By optimising parameters such as temperature, pressure and solvent polarity, these techniques minimise organic solvent use and energy inputs, facilitating scale-up for industrial nutraceutical manufacture. Work on agro-industrial by-products has underscored the potential to recover antioxidant polyphenols from residues via enzyme‐assisted processes, ionic-liquid and deep eutectic solvent systems, and novel multi‐frequency multimode sonication. Such strategies not only reduce waste but generate ingredients with verified bioactivity. Parallel developments in analytical methodology—particularly HPLC-MS and GC-MS fingerprinting—have provided unparalleled sensitivity and selectivity for profiling carbohydrates, lipids, phenolics and other small molecules. High-resolution mass spectrometry has become indispensable for method validation, quality control and authentication of complex nutraceutical extracts, driving the integration of extraction and analytics into cohesive workflows.

Nutraceuticals and Bioactive Compound Extraction Techniques publication trend

The graph below shows the total number of articles in nutraceuticals and bioactive compound extraction techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Nutraceutical: A food or food component that offers health benefits beyond basic nutrition.

Bioactive compound: A naturally occurring molecule in food that modulates physiological functions.

Supercritical fluid extraction (SFE): Use of fluids above their critical temperature and pressure to selectively dissolve target compounds.

Ultrasonic-assisted extraction (UAE): Application of sound‐induced cavitation to disrupt plant matrices and enhance mass transfer.

Microwave-assisted extraction (MAE): Use of microwave energy to heat sample and solvent rapidly, improving extraction kinetics.

Deep eutectic solvent (DES): A designer solvent composed of hydrogen‐bond donors and acceptors that forms a low‐melting eutectic mixture, often biocompatible and tunable for green extraction.

References

1. Novel Food Processing and Extraction Technologies of High-Added Value Compounds from Plant Materials. Foods (2018).
2. Nutraceuticals: Focus on Anti-Inflammatory, Anti-Cancer, Antioxidant Properties in Gastrointestinal Tract. Antioxidants (2022).
3. Analytical Strategies for Fingerprinting of Antioxidants, Nutritional Substances, and Bioactive Compounds in Foodstuffs Based on High Performance Liquid Chromatography–Mass Spectrometry: An Overview. Foods (2020).
4. Crucial Challenges in the Development of Green Extraction Technologies to Obtain Antioxidant Bioactive Compounds from Agro-industrial By–Products. Chemical and Biochemical Engineering Quarterly (2021).