1 Marine Biotechnology Laboratory, Department of Chemistry and Marine Bioprocess Research Center, Pukyong National University, Busan 608-737, South Korea; Department of Chemistry and Marine Bioprocess Research Center, Pukyong National University, Busan 608-737, South Korea; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai - 608 502, Tamil Nadu, India.