Prospects of using non-thermal technologies for chia seed mucilage extraction

Abstract

Chia seed mucilage (CSM) possesses a range of functional and bio-functional properties, making it a valuable hydrocolloid. The CSM extraction process includes stages such as hydration, separation, recovery, and purification of polysaccharides. Traditional methods using strong bases or acids and high temperatures can damage CSM and demucilaged seeds, which are useful for oil extraction. To address this issue, non-thermal technologies have shown significant promise as an environmentally friendly extraction method. Based on the existing literature, this review focuses on non-thermal techniques such as ultrasonication, cold plasma, microwave, and pulsed electric field, for potential future use. It highlights the benefits of non-thermal technologies on the physical and functional properties of CSM. The review emphasises the potential of CSM as a novel food hydrocolloid across various industries, including its use in pharmaceuticals and cosmetics, emphasising sustainable extraction and application.