Denise Aline Casimiro Bezerra , Maria Anésia Sousa de Alencar , Dárcio Luiz de Sousa Júnior , Luciene Ferreira De Lima , Ítalo Mykaell da Silva Benjamim , Luiz Eduardo Oliveira Teotônio , Nadghia Figueiredo Leite Sampaio , Pedro Everson Alexandre De Aquino , Ítalo Rosal Lustosa , Joanda Paolla Raimundo e Silva , Josean Fechine Tavares , Marcelo Sobral da Silva , Micheline Azevedo Lima , Lucas Silva Abreu , Jaime Ribeiro-Filho , Francisco Assis Bezerra Da Cunha , Henrique Douglas Melo Coutinho
{"title":"Antibacterial effect of Vachellia farnesiana (L.) WIGHT & ARN. pod extract against gram positive and gram negative multidrug-resistant strains","authors":"Denise Aline Casimiro Bezerra , Maria Anésia Sousa de Alencar , Dárcio Luiz de Sousa Júnior , Luciene Ferreira De Lima , Ítalo Mykaell da Silva Benjamim , Luiz Eduardo Oliveira Teotônio , Nadghia Figueiredo Leite Sampaio , Pedro Everson Alexandre De Aquino , Ítalo Rosal Lustosa , Joanda Paolla Raimundo e Silva , Josean Fechine Tavares , Marcelo Sobral da Silva , Micheline Azevedo Lima , Lucas Silva Abreu , Jaime Ribeiro-Filho , Francisco Assis Bezerra Da Cunha , Henrique Douglas Melo Coutinho","doi":"10.1016/j.prenap.2025.100245","DOIUrl":null,"url":null,"abstract":"<div><div>Antibiotic resistance rates have increased over time, requiring the development of new antimicrobial drugs and the identification of bioactive compounds capable of improving the effectiveness of currently available antibiotics. <em>Vachellia farnesiana</em> (L.) is a species of the Fabaceae family characterized by phenolic compounds and terpenes. Thus, considering the evidence that these compounds have significant biological effects, this study aimed to characterize the chemical composition and antibacterial effects of the ethanolic extract of <em>V. farnesiana</em> pods against standard and multidrug-resistant (MDR) strains of <em>Staphylococcus aureus</em>, <em>Escherichia coli</em>, and <em>Pseudomonas aeruginosa</em>. The minimum inhibitory concentration (MIC) was determined to assess the antibacterial activity of the extract, as well as to investigate its enhancing the effectiveness of amikacin, gentamicin, and clindamycin against MDR strains. Therefore, the antibiotics were combined with a sub-inhibitory extract concentration (MIC/8). The extract showed significant antibacterial activity against <em>S. aureus</em> and <em>E. coli</em>. In addition, the association of antibiotics with a sub-inhibitory concentration (MIC/8) of the extract significantly reduced the MIC of at least two drugs against different strains, indicating potentiation. Finally, the HPLC-DAD-ESI-MS analyses detected the presence of 25 peaks, with the identification of 30 compounds in 22 peaks (88 %) in the extracts of <em>V. farnesiana</em> green pods.</div></div>","PeriodicalId":101014,"journal":{"name":"Pharmacological Research - Natural Products","volume":"7 ","pages":"Article 100245"},"PeriodicalIF":0.0000,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pharmacological Research - Natural Products","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2950199725001053","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Antibiotic resistance rates have increased over time, requiring the development of new antimicrobial drugs and the identification of bioactive compounds capable of improving the effectiveness of currently available antibiotics. Vachellia farnesiana (L.) is a species of the Fabaceae family characterized by phenolic compounds and terpenes. Thus, considering the evidence that these compounds have significant biological effects, this study aimed to characterize the chemical composition and antibacterial effects of the ethanolic extract of V. farnesiana pods against standard and multidrug-resistant (MDR) strains of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. The minimum inhibitory concentration (MIC) was determined to assess the antibacterial activity of the extract, as well as to investigate its enhancing the effectiveness of amikacin, gentamicin, and clindamycin against MDR strains. Therefore, the antibiotics were combined with a sub-inhibitory extract concentration (MIC/8). The extract showed significant antibacterial activity against S. aureus and E. coli. In addition, the association of antibiotics with a sub-inhibitory concentration (MIC/8) of the extract significantly reduced the MIC of at least two drugs against different strains, indicating potentiation. Finally, the HPLC-DAD-ESI-MS analyses detected the presence of 25 peaks, with the identification of 30 compounds in 22 peaks (88 %) in the extracts of V. farnesiana green pods.