Hadiya Tahir, Aamir Hussain Dar, Kshirod Kumar Dash, Toiba Majeed, Shivangi Srivastava, Anurag Singh, Madiya Manzoor, Urba Shafiq Sidiqi, Arsheed A. Ganaie
Subcritical water extraction is used for extraction of various bioactive compounds, antioxidants, and colorants from algae. The bioactive compound extraction utilizing sustainable environmentally technology is currently of utmost importance, particularly in relation to functional foods and advanced healthcare solutions. When using Subcritical water extraction (SWE), the alteration of temperature and pressure allows for the selective extraction of particular bio active compounds, thereby reducing the quantum of components not required. SWE enables water to dissolve both polar and non-polar compounds because its dielectric constant decreases as the temperature increases. This process allows maintaining the bioactivity as well as desirable qualities of bioactive compounds being extracted. The use of water as solvent in SWE ensures that the safe and eco-friendly procedure. These improved characteristics of subcritical water solvent leads to high extraction efficiency. The objective of this study is the extraction of the bioactive compounds from the algae using the subcritical water extraction (SWE) and to discuss the various methodologies, their implementations, advantages as well as prospective advancements of SWE in relation to algae. The study further aims to emphasize the significantly efficient and sustainable extraction of bioactive compounds from algae, with the intent of applying them in diverse industrial applications.