Pakistan is enriched in a variety of seaweeds and other algae along its coastal and freshwater habitats respectively. There is no industry in Pakistan to utilize it as we see their vast utilization in other countries as food, fodder and fertilizer as well as in medicine and phycocolloid industries. Systematic scientific evaluation of algae to isolate and identify their secondary metabolites started in the earliest part of 20th century as a result, a new branch of phycology has been established as phycochemistry (Shameel, 1990). It deals with the study of natural products, secondary...