Qualitative and quantitative analysis of Sargassum wightii and Kappaphycus alvarezii

Abstract

During the last four decades, numerous novel compounds have been isolated from marine organisms and many of these substances have been demonstrated to possess interesting biological activities. To date, numerous structurally unusual secondary metabolites, such as flavonoids (which play a role in removal of toxins from skin), alkaloids and phenolic compounds (a poweful free radical scavenging activity agent), sesquterpenes, diterpenes, phlorotannins have been frequently reported from various species of seaweeds. With this background two seaweeds Sargassum wightii (Sw1) and Kappaphycus alvarezii (Sw2) were analysed for their active metabolites qualitatively and quantitatively.