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EVALUATION OF ANTIOXIDANT ACTIVITIES OF SOME ABUNDANT MARINE MACROALGAE, EGYPT

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Last updated: 25 Dec 2024

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Abstract

This study investigated the antioxidant scavenging activity of nine marine macroalgae extracts collected from different Egyptian coasts. The extracts were tested using the DPPH assay to exhibit various antioxidant activities. All extracts showed lower DPPH free radical scavenging compared to ascorbic acid. Antioxidant effects increased with extract concentration, with brown algae exhibiting the highest activity among green and red algae. Specifically, the brown alga Polycladia myrica extract was most effective against DPPH free radicals, while the green alga Ulva fasciata demonstrated the lowest scavenging effect. At a concentration of 1000ug/ml, the most effective species against DPPH free radicals were brown macroalgae (Polycladia myrica > Turbinaria turbinata > Hormophysa cuneiformis), followed by red macroalgae (Jania rubens > Hypnea cornuta > Galaxura rugosa), whereas the green macroalgae showed the lowest scavenging effect (Caulerpa racemosa > Halimeda tuna > Ulva fasciata). The IC50 values indicated that Ulva fasciata, Halimeda tuna, and Caulerpa racemosa had the highest antioxidant activity, then red algae Galaxura rugosa> Hypnea cornuta> Jania rubens while brown algae Hormophysa cuneiformis, Turbinaria turbinata, and Polycladia myrica recorded the lowest values. Overall, the studied macroalgae species demonstrated significant antioxidant potential due to bioactive compounds like polyphenols, saponins, and tannins. Caulerpa racemosa exhibited the highest polyphenol concentration, while Galaxura rugosa had the lowest. Ulva fasciata, Hormophysa cuneiformis and Polycladia myrica showed the highest total saponins content, while Hypnea cornuta registered the highest total tannins content. These findings suggest that macroalgae could serve as dietary alternatives due to their strong antioxidant capabilities.

DOI

10.21608/bfsa.2023.327714

Keywords

Abundant marine macroalgae, Egyptian coasts, ascorbic acid, Antioxidant activity, DPPH scavenging

Authors

First Name

H.

Last Name

Ahmed

MiddleName

K.

Affiliation

Botany and Microbiology Department, Faculty of Science, Suez University

Email

hager.kamal@sci.suezuni.edu.eg

City

-

Orcid

-

First Name

S.

Last Name

Heneidak

MiddleName

-

Affiliation

Botany and Microbiology Department, Faculty of Science, Suez University

Email

-

City

-

Orcid

-

First Name

Abdel

Last Name

Rasmey

MiddleName

H. M.

Affiliation

Botany and Microbiology Department, Faculty of Science, Suez University

Email

-

City

-

Orcid

-

First Name

G.

Last Name

El Shoubaky

MiddleName

A.

Affiliation

Botany and Microbiology Department, Faculty of Science, Suez Canal University

Email

-

City

-

Orcid

-

Volume

46

Article Issue

2

Related Issue

44483

Issue Date

2023-12-01

Receive Date

2023-05-30

Publish Date

2023-12-01

Page Start

913

Page End

925

Print ISSN

1110-0052

Online ISSN

3009-7703

Article File

BFSA_Volume 46_Issue 2_Pages 913-925.pdf

PDF . 1.4MB

Link

https://bpsa.journals.ekb.eg/article_327714.html

Detail API

https://bpsa.journals.ekb.eg/service?article_code=327714

Order

327,714

Type

Original Article

Type Code

1,096

Publication Type

Journal

Publication Title

Bulletin of Pharmaceutical Sciences Assiut University

Publication Link

https://bpsa.journals.ekb.eg/

MainTitle

EVALUATION OF ANTIOXIDANT ACTIVITIES OF SOME ABUNDANT MARINE MACROALGAE, EGYPT

Details

Type

Article

Created At

25 Dec 2024