Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Investigating the Effect of Acanthaster planci Extractions for Anti-enzymatic and Anti-human Pathogenic Activity

Version 1 : Received: 1 July 2022 / Approved: 6 July 2022 / Online: 6 July 2022 (04:03:02 CEST)

How to cite: Siro, G. Investigating the Effect of Acanthaster planci Extractions for Anti-enzymatic and Anti-human Pathogenic Activity . Preprints 2022, 2022070085. https://doi.org/10.20944/preprints202207.0085.v1 Siro, G. Investigating the Effect of Acanthaster planci Extractions for Anti-enzymatic and Anti-human Pathogenic Activity . Preprints 2022, 2022070085. https://doi.org/10.20944/preprints202207.0085.v1

Abstract

Crown of thorns starfish (Acanthaster planci) are coral predators with advantages of having toxicity in their venom and tissue regeneration capabilities. With all these characteristics, only a handful of studies have highlighted the association of microorganisms with this organism. Crown of thorns starfish are common in Fiji and their analyses of microbial diversity for secondary metabolites could be of great interest to the scientific community. This study is an attempt to investigate Fijian-based A. planci for their venom and associated actinomycetes antibacterial activity and further identify the type of enzymes present in the crude venom extract. The CoTS venom extract (0.192 g) harbor enzymes such as gelatinase, caesinase, and amylase. An abundant and potent actinomycete strain, represented as FJA1 showed antibacterial activity against Enterococcus faecium with an inhibition zone of 10 mm. Moreover, all pathogenic test microorganisms were resistant against concentrations of 500 µg and 1 mg of A. planci venom extract.

Keywords

Crown of thorns starfish (CoTS); actinomycetes; venom extract; anti-enzymatic; antibacterial activity

Subject

Biology and Life Sciences, Immunology and Microbiology

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