Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results
L. monocytogenes is a foodborne pathogen responsible for a serious disease with a high mortality rate, particularly in vulnerable consumers. Recently, the scientific community has shown increasing attention to the search for new natural molecules with antimicrobial activity, aimed at preventing the...
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ftdoajarticles:oai:doaj.org/article:4f7f50c71969487eb5af04b224c66885 2023-05-15T13:45:19+02:00 Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results Iolanda Venuti Marina Ceruso Caterina D’Angelo Angela Casillo Tiziana Pepe 2022-06-01T00:00:00Z https://doi.org/10.4081/ijfs.2022.10320 https://doaj.org/article/4f7f50c71969487eb5af04b224c66885 EN IT eng ita PAGEPress Publications https://www.pagepressjournals.org/index.php/ijfs/article/view/10320 https://doaj.org/toc/2239-7132 doi:10.4081/ijfs.2022.10320 2239-7132 https://doaj.org/article/4f7f50c71969487eb5af04b224c66885 Italian Journal of Food Safety, Vol 11, Iss 2 (2022) Antimicrobials Listeria monocytogenes Pentadecanal Pseudoalteromonas haloplanktis Food processing and manufacture TP368-456 article 2022 ftdoajarticles https://doi.org/10.4081/ijfs.2022.10320 2022-12-31T02:42:12Z L. monocytogenes is a foodborne pathogen responsible for a serious disease with a high mortality rate, particularly in vulnerable consumers. Recently, the scientific community has shown increasing attention to the search for new natural molecules with antimicrobial activity, aimed at preventing the spread of foodborne diseases. Extremophilic microorganisms, typical of extreme temperature environments, are a valuable source of these molecules. The present work aimed to study the antibacterial activity of four pure compounds derived from a molecule, the pentadecanal, produced by the Antarctic bacterium Pseudoalteromonas haloplanktis, against two different pathotypes of L. monocytogenes. Growth assays were performed in 96-well polystyrene plates with serial dilutions of the tested compounds at different concentrations (0.6, 0.3, 0.15, 0.07 mg/mL). The plates were incubated at 37°C for 24 h, with a spectrophotometric reading at OD 600 nm. Preliminary results of this study showed that pentadecanal inhibits the growth of L. monocytogenes, with a MIC (Minimum Inhibitory Concentration) of 0.6 mg/mL. Acetal, carboxylic acid, and ester did not demonstrate antibacterial activity at the concentrations tested. These findings suggest the possibility of using pentadecanal as a natural antibacterial to improve safety standards along the food supply chain. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Italian Journal of Food Safety 11 2 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Italian |
topic |
Antimicrobials Listeria monocytogenes Pentadecanal Pseudoalteromonas haloplanktis Food processing and manufacture TP368-456 |
spellingShingle |
Antimicrobials Listeria monocytogenes Pentadecanal Pseudoalteromonas haloplanktis Food processing and manufacture TP368-456 Iolanda Venuti Marina Ceruso Caterina D’Angelo Angela Casillo Tiziana Pepe Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results |
topic_facet |
Antimicrobials Listeria monocytogenes Pentadecanal Pseudoalteromonas haloplanktis Food processing and manufacture TP368-456 |
description |
L. monocytogenes is a foodborne pathogen responsible for a serious disease with a high mortality rate, particularly in vulnerable consumers. Recently, the scientific community has shown increasing attention to the search for new natural molecules with antimicrobial activity, aimed at preventing the spread of foodborne diseases. Extremophilic microorganisms, typical of extreme temperature environments, are a valuable source of these molecules. The present work aimed to study the antibacterial activity of four pure compounds derived from a molecule, the pentadecanal, produced by the Antarctic bacterium Pseudoalteromonas haloplanktis, against two different pathotypes of L. monocytogenes. Growth assays were performed in 96-well polystyrene plates with serial dilutions of the tested compounds at different concentrations (0.6, 0.3, 0.15, 0.07 mg/mL). The plates were incubated at 37°C for 24 h, with a spectrophotometric reading at OD 600 nm. Preliminary results of this study showed that pentadecanal inhibits the growth of L. monocytogenes, with a MIC (Minimum Inhibitory Concentration) of 0.6 mg/mL. Acetal, carboxylic acid, and ester did not demonstrate antibacterial activity at the concentrations tested. These findings suggest the possibility of using pentadecanal as a natural antibacterial to improve safety standards along the food supply chain. |
format |
Article in Journal/Newspaper |
author |
Iolanda Venuti Marina Ceruso Caterina D’Angelo Angela Casillo Tiziana Pepe |
author_facet |
Iolanda Venuti Marina Ceruso Caterina D’Angelo Angela Casillo Tiziana Pepe |
author_sort |
Iolanda Venuti |
title |
Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results |
title_short |
Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results |
title_full |
Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results |
title_fullStr |
Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results |
title_full_unstemmed |
Antimicrobial activity evaluation of pure compounds obtained from Pseudoalteromonas haloplanktis against Listeria monocytogenes : Preliminary results |
title_sort |
antimicrobial activity evaluation of pure compounds obtained from pseudoalteromonas haloplanktis against listeria monocytogenes : preliminary results |
publisher |
PAGEPress Publications |
publishDate |
2022 |
url |
https://doi.org/10.4081/ijfs.2022.10320 https://doaj.org/article/4f7f50c71969487eb5af04b224c66885 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Italian Journal of Food Safety, Vol 11, Iss 2 (2022) |
op_relation |
https://www.pagepressjournals.org/index.php/ijfs/article/view/10320 https://doaj.org/toc/2239-7132 doi:10.4081/ijfs.2022.10320 2239-7132 https://doaj.org/article/4f7f50c71969487eb5af04b224c66885 |
op_doi |
https://doi.org/10.4081/ijfs.2022.10320 |
container_title |
Italian Journal of Food Safety |
container_volume |
11 |
container_issue |
2 |
_version_ |
1766220551844528128 |