Proximate composition of seaweeds from red sea coast Proximate composition of three abundant species of seaweeds from red sea coast in Massawa, Eritrea
The present study investigates the preliminary information of proximate composition of the seaweeds collected from the Red Sea coast of Massawa, Eritrea. The proximate composition (moisture, protein, total soluble carbohydrates, lipids, fiber and ash) of three abundant samples; Enteromorpha clathrata, Gracilaria corticata and Sargassum linearifolium were analyzed. It was observed that the moisture content was high, ranging from 85.28% to 90.88%. High content was found in red seaweed G.
... seaweed G. corticata and minimum in brown seaweed S. linearifolium. Carbohydrate content of seaweeds ranged from 23.53% to 28.97%. The maximum carbohydrate was recorded in the green seaweed E. clathrata and the brown seaweed S. linearifolium recorded the minimum value. Quantitative analysis of protein content ranged from 6.93% to 13.64%. High protein was found in the green seaweed E. clathrata and low in the brown seaweed S. linearifolium. The lipid content varied from 0.20% to 1.42%, high in brown seaweed S. linearifolium and lower in red seaweed G. corticata. Ash content was observed to range from 51.16% to 26.86%. The maximum ash content was recorded in red seaweed G. corticata and the brown seaweed S. linearifolium recorded the minimum content. The fiber content ranged from 19.97% to 4.37%; high in brown algae S. linearifolium and lower in red algae G. corticata. The moisture and ash contents were recorded higher in red seaweed G. corticata than E. clathrata and S. linearifolium. The results of the present work indicates that, the seaweeds from the Red Sea are an alternative nutritional source. Various environmental factors as well as climatic changes affect the seaweed composition; especially minerals present in Red Sea coast are the major parameters for the ash content. Introduction: