Neoteric Approaches for Extraction of Bioactives from Marine Macroflora

Abstract

More than 70% of the earth's surface is covered by the marine ecosystem. This habitat is home to a large number of marine species that produce very different metabolites as defense mechanisms. In recent years, a lot of research work has been done on the extraction of biologically active compounds using various methods in many commercial areas such as biomedicine, pharmaceuticals, cosmetics, nutrition and health care and chemical industry. In fact, many traditional extraction methods have several limitations, such as low efficiency, high energy costs, and low yields. Therefore, there is an urgent need for new and updated extraction methods. Because conventional extraction methods are solvent-intensive and time-consuming, consequently this review covers neoteric approaches like pressurized liquid extraction (PLE), ultrasonic assisted extraction (UAE), enzyme assisted extraction (EAE), extraction with supercritical fluids (SFE) and microwave assisted extraction (MAE) and working mechanism to extract bioactive components from marine flora. The advantages of the new technology include higher output, less time and lower cost. In addition, different combinations of new extraction technologies and technologies suitable for heat-labile compounds have also been identified. This article summarizes the most important bioactive compounds in marine flora and the latest developments in new extraction techniques.