Evaluation of Proximate Composition and Antioxidant Activities for Some Extracts of Hormophysa cuneiformis

Azzaz, Nabil; Hamed, Sahar; El-Said, Eman; Abd El-ghany, Somaya

doi:10.21608/djas.2025.430277

	Evaluation of Proximate Composition and Antioxidant Activities for Some Extracts of Hormophysa cuneiformis
Damietta Journal of Agricultural Sciences
Volume 4, Issue 2, July 2025, Pages 136-142 PDF (1.23 M)
Document Type: Original research papers
DOI: 10.21608/djas.2025.430277
Authors
Nabil Azzaz¹; Sahar Hamed¹; Eman El-Said²; Somaya Abd El-ghany^* ¹^{, 3}
¹Agricultural Biotechnology Department, Faculty of Agriculture, Damietta University, Egypt
²Animal, Poultry and Fish Production Department, Faculty of Agriculture, Damietta University, Egypt
³The Center for Excellence in Research of Advanced Agricultural Sciences (CERAAS), Faculty of Agriculture, Damietta University, Damietta, Egypt
Abstract
The brown seaweed Hormophysa cuneiformis (H. cuneiformis) is recognized as one of the most significant algal species along the Egyptian Red Sea coast and is considered as a promising source of bioactive compounds. This experiment evaluated the chemical components and scaving activity of three different extracts of H. cuneiformis (ethanolic, acidified ethanolic, and aqueous) collected from the Red Sea coast in Hurghada, Egypt. The reducing power, DPPH radical scavenging assay, total flavonoid content, total antioxidant capacity, and total polyphenol content are connotations of the antioxidant properties of H. cuneiformis. Additionally, nutritional analysis showed that H. cuneiformis is rich in fiber (34.24%), ash (30.93%), carbohydrates (28.5%), and proteins (5.24%), with low lipid content (1.09%) on an air-dry weight basis. In conclusion, the acidified ethanolic extract recorded the highest value of DPPH radical scavenging activity compared with the ethanolic and aqueous extracts. In addition, the flavonoid and total phenolic values were recorded the highest value in the acidified ethanolic and ethanolic extracts compared to other extract. Finally, we inferred that the acidified ethanolic extract had superior total antioxidant capacity and reducing power compared with the other extracts.
Keywords
Total phenols; Flavonoids; Antioxidant activity

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