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Messaoudi, Mohammed; Benreguieg, Mokhtar; Merah, Maroua; Messaoudi, Zakarya Ayoub. |
Despite the presence of many antibiotics, bacterial resistance is growing steadily and some of these antibiotics have become ineffective, which poses a major challenge to the health sector. In this context, this work has demonstrated, in vitro, the inhibitory action of the bacterial growth resulting from methanolic and ethanolic extracts of Thymus algeriensis Boiss. & Reut., a medicinal plant species harvested from the Algerian South-west area, as well as the determination of the phenolic content of those crude extracts. The methanolic extract of Thymus algeriensis showed a significant antibacterial effect with 16.5 and 19 mm against Pseudomonas aeruginosa and Staphylococcus aureus, respectively. Klebsiella pneumoniae was not inhibited by both... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial effect; Extracts; Medicinal plant; Phenolic content; Thymus algeriensis.. |
Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48548 |
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Malheiros,Camila Krüger Cardoso; Silva,Joyce Sayonara Barbosa; Hofmann,Tânia Cristiane; Messina,Thiane Martins; Manfredini,Vanusa; Piccoli,Jacqueline da Costa Escobar; Faoro,Débora; Oliveira,Luís Flávio Souza; Machado,Michel Mansur; Farias,Fabiane Moreira. |
ABSTRACT The bark tea of Ceiba speciosa, a tropical tree of the Malvaceae family, is used in the Northwestern Region of Rio Grande do Sul state, Brazil, to reduce blood cholesterol levels. However, there are no scientific data on the efficacy and safety of this plant. The aim of the present study was to evaluate the in vitro antioxidant and toxic potential of bark extracts of C. speciosa. We performed a preliminary phytochemical analysis by high-performance liquid chromatography-diode array detection (HPLC-DAD) and evaluated the oxidative damage to proteins and lipids, the radical scavenging effect, and genotoxicity of the lyophilized aqueous extract (LAECs) and the precipitate obtained from the raw ethanol extract (Cs1). The phytochemical profile... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ceiba speciose/phytochemistry; Ceiba speciose/antioxidant activity; Phenolic content; Comet assay; DPPH scavenging capacity; Natural medicine; Safety. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000200616 |
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Ferreira,Bruna Mayara Roldão; Dagostin,João Luiz Andreotti; Andrade,Eriel Forville de; Takashina,Thiago Atsushi; Ellendersen,Luciana de Souza Neves; Masson,Maria Lucia. |
Abstract Yacon is a tuberous root from the Andean region being increasingly grown across the world due to the low caloric values of their roots and the functional properties of extractions of its leaves. However, there is still a gap in the knowledge of how the plant develops, and if physical and chemical changes are noticed regarding maturity. The subject of this work was to investigate the dynamics of a group of parameters and to establish correlations across them. To achieve this goal, leaves collected from three different parts of the plant in three months were assessed regarding size (plant height and leaf area), color and the presence of sesquiterpene lactones. Different methods of extraction were also studied and the total phenolic content was... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Smallanthus sonchifolius; Sesquiterpene lactones; Physical parameters; Chemical parameters; Phenolic content. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100430 |
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