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275509

Antibacterial Potential of Tridacna sp. and Pearl Oyster Aqueous Extracts on Food Spoilage Salmonella enterica

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Last updated: 01 Jan 2025

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Abstract

A high intake of synthetic food preservatives leads to a variety of health problems and diseases. Antibacterial compounds have been discovered in marine invertebrates. As a result, four marine bivalve molluscs species, three giant clams, Tridacna maxima, Tridacna gigas, Tridacna squamosa, and (pearl oysters) Pinctada margritifera were collected from the Red sea and assayed for antibacterial activity against the reference food spoilage pathogenic strain Salmonella enterica. Among the four bivalves, T. squamosa aqueous extract demonstrated a significant antibacterial effect on S. enterica, showing a MIC of 12.5mg/ ml. Phenolic and flavonoid total content of T. squamosa water extract were 18.5±1.63mg/ g and 2.67±1.48mg/ g, respectively. The antioxidant activity of T. squamosa water extract was demonstrated by a DPPH radical scavenging IC50 of 58.61±1.02 μg/ml. HPLC analysis confirmed the presence of polyphenol components, including gallic acid, chlorogenic acid, and methyl gallate. The IC50 value of T. squamosa aqueous extract for growth inhibition on normal PBMCs cells was 199.2±2.24µg/ ml, determining its safety. In addition, it might be employed as innovative dietary supplements and effective natural food preservatives instead of chemical ones.

DOI

10.21608/ejabf.2022.275509

Keywords

Bivalve, Marine shellfish, bioactive metabolites, Giant clams, Pearl oysters, Antioxidant activity

Authors

First Name

Mohamed S. M.

Last Name

Abd El Hafez et al.

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Volume

26

Article Issue

6

Related Issue

37580

Issue Date

2022-11-01

Receive Date

2022-12-22

Publish Date

2022-11-01

Page Start

737

Page End

749

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_275509.html

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https://ejabf.journals.ekb.eg/service?article_code=275509

Order

42

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Antibacterial Potential of Tridacna sp. and Pearl Oyster Aqueous Extracts on Food Spoilage Salmonella enterica

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Article

Created At

22 Jan 2023