Vegetation and Biochemical contents of Caulerpa racemosa from Red Sea Coast at Hurghada-Egypt

Document Type : Original articles

Authors

1 Botany and Microbiology, Faculty of Science, Damietta University, Egypt

2 Botany and Microbiology, faculty of Science, Damietta University, Egypt

3 Zoology Department, Faculty Science, Damietta University

Abstract

Caulerpa racemosa strain from Red Sea Coast (Hurghada, Egypt) was identified classically by its morphological characteristics. The suitable trophic status of saline water and sand sediment at the study site resulted in the hyper massive growth (4250 g freshwt/m2 and/or 520 g drywt /m2) of Caulerpa racemosa at Red Sea Coast (Hurghada) - Egypt. Biochemical analysis of C. racemosa showed that generally the protein content was 22.65 mg/g dry wt. It was relatively low soluble carbohydrates content (30.67 mg/g dry wt) but high insoluble carbohydrates content (200.47 mg/g dry wt). Moreover, Caulerpa racemosa was contained 11.47 mg/g dry wt of lipids and rich in minerals contents (K, Na, Ca and P) but it has contained sodium content of 43.23 mg/g dry wt higher than the other minerals of K, Ca and P (5.3 mg/g dry wt., 8.7 mg/g dry wt. and 11.4 mg/g dry wt. respectively). Caulerpa racemosa has accumulated heavy metals like Fe, Co, Cu, and Cd which varied between 0.43 mg/g dry wt to 1.3 mg/g dry wt for Fe and Cd, respectively. Air dried algal materials of Caulerpa racemosa were extracted with organic solvents. Moreover the qualitative studies of natural product contents indicate that Caulerpa racemosa contain Alkaloids, Saponins, Flavonoids, Phenols and Quinones.

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