Proximate Analysis of Nutritional Composition of Antifungal and Antinematicidal Activities of Different Seaweeds from the Coast of Karachi-Pakistan

Abstract

Seaweeds inhabit almost everywhere and known as the omnipresent organisms. They are renewable living resources which are also used as feed, wastewater treatment or for the industrial production of phycocolloids, thickening, and gelling agents in food and pharmaceutical industries. This research article is based on chemical composition and nutritional values from the coast of Karachi, Pakistan using sixteen seaweeds belonging to three different Phylum including Chlorophytcota, pheophycota and Rhodophycota. The oil was extracted with n-hexane then it was subjected for physical, chemical and biochemical composition of different marine algae by means of some of the known tests, like tests for lipids, carbohydrates, protein etc. After that the residue of these seaweeds were examine in vitro condition for antifungal activities using food poising technique against three pathogenic fungi e.g., F. oxysporum, R. solani and M. phaseolina and for nematicidal activities using mortality and hatching test against M. javanica species and conclusion, got highly significant results. This study has revealed an interesting array to create a nutritional data to the alternation of an efficient food for Pakistan food industry and envisage pesticides invention for agricultural department.