A Comprehensive Review on Advanced Extraction Techniques for Retrieving Bioactive Components from Natural Sources.

Area of Science:

• Natural Product Chemistry
• Separation Science
• Green Chemistry

Background:

• Growing demand for natural and functional compounds in pharmaceuticals, food, and cosmetics.
• Need for efficient extraction methods to maintain integrity and bioactivity of natural components.

Purpose of the Study:

• To provide a comprehensive overview of advanced extraction techniques for bioactive components from natural sources.
• To highlight the principles, advantages, limitations, and optimization parameters of various extraction methods.
• To discuss emerging green and nanotechnology-based approaches for enhanced extraction efficiency and sustainability.

Main Methods:

• Review of literature on advanced extraction techniques.
• Detailed exploration of supercritical-fluid extraction, microwave-assisted extraction, ultrasound-assisted extraction, subcritical solvent extraction, and solid-phase microextraction.
• Analysis of factors influencing extraction: solvent, time, temperature, and amplitude.

Main Results:

• Comparison of different extraction techniques regarding efficiency, yield, and bioactivity.
• Case studies demonstrating the application of techniques for specific compounds (phenolics, flavonoids, alkaloids, essential oils).
• Evaluation of emerging green and nanotechnology-based methods for improved sustainability and efficiency.

Conclusions:

• Advanced extraction techniques are vital for obtaining high-quality bioactive components from natural sources.
• Optimization of parameters and exploration of novel methods are key to maximizing extraction yield and bioactivity.
• This review serves as a valuable resource for researchers and industry professionals in natural product extraction.