ANTIOXIDANT ACTIVITY OF SOME GREEN AND RED SEAWEEDS FROM WEST COAST OF MAHARASHTRA, INDIA

Abstract

Antioxidant potential of methanolic, ethanolic and aqueous extracts of three green (Chaetomorpha antennina, Kuetz, Enteromorpha intestinalis (L.) Nees, Ulva fasciata ) and three red seaweeds (Acanthophora spicifera, (Vahl) Borgesen, Jania rubens (Lin) and Porphyra vietnamensis T. Tanaka and Pham-Hoang Ho) collected from Kunakeshwar in Sindhudurg district of Maharashtra. In present study antioxidant activities was determined with respect to DPPH, FICA, H2O2, reducing power and total antioxidant capacity. DPPH, FICA and TAC is good in both green and red seaweeds. DPPH activity was more than 70% in most the samples in three different solvents. In methanol TAC was even greater than 130mg/g and maximum was recorded in Enteromorpha intestinalis 193mg/g. In Enteromorpha intestinalis the FICA was more than 60% in all the three solvents. Chaetomorpha and Porphyra exhibited better H2O2 activity in all the three media used. Reducing power is better in red seaweeds. Organic solvent revealed better activity, however H2O2 is better in aqueous medium for both green and red seaweeds.