Biochemical and mineral compositions of six brown seaweeds collected from Red Sea at Hurghada Coast

摘要

The biochemical and mineral compositions of six brown seaweeds collected during spring season from Red Sea at Hurghada coast were determined to evaluate their significance in animal nutrition. The results suggested that the highest ash and protein contents were recorded in Padina gymnospora (45.48%) and Sargassum muticum (5.31%), respectively. The carbohydrates content was 24.0% in the studied seaweeds, while the fat content ranged from 0.11 to 0.27%, and the essential amino acids formed 38.13-42.34% of the total amino acids. Both Padina gymnospora and Turbinaria sp. had the majority of measured phenolic compounds. Also, the studied seaweed species were rich in vitamin B-2 ( 105.0 ppm), except Sargassum aspirofolium. The highest/lowest vitamin C content existed in Sargassum muticum (11.76 ppm) and Sargassum aspirofolium (3.96 ppm), respectively. Moreover, the tested seaweeds exhibited high amounts of essential minerals. Therefore, Red Sea brown seaweeds are good food sources for animal nutrition.