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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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| 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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| 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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| Castro,Alejandra; Caballero,Maciel; Herbas,Adelina; Carballo,Sergio. |
| Yacon (Smallanthus sonchifolius (Poepp. and Endl.) H. Robinson) is a storage root originally grown in the Andean highlands. The fresh roots are perishable and quickly turn brown during handling and processing. Aiming to prolong shelf-life and to preserve the antioxidant compounds in yacon roots, 3 mm thick yacon slices were dried in a drying cabinet at 40, 50, and 60 ºC to a moisture content of 10-14%, and yacon strips were sun dried to a moisture content of 15-20%. The total phenolic content was measured by the Folin-Ciocalteu method, and the quenching capacity was evaluated by measuring the amount of DPPH (1,1-diphenyl-2-pidrylhydrazyl) inhibited in samples after drying and after 7 months of storage. The results showed that it is possible to preserve the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yacon; Phenolic content; Drying; Storage; Antioxidant capacity. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000300003 |
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| SAELEE,Manee; SIVAMARUTHI,Bhagavathi Sundaram; SIRILUN,Sasithorn; SIRITHUNYALUG,Jakkapan; PEERAJAN,Sartjin; CHAIYASUT,Chaiyavat. |
| Abstract Morinda citrifolia L., generally known as noni, is commonly used in Thai medicines and cuisine. Several bioactive phytochemicals have been isolated and identified from the noni plant, and their compositions differ based on the cultivars and harvesting period. Different types of fermented noni fruit juices (FNJ) were used as health supplement in several southeastern countries. The formation of a large amount of alcohol, especially methanol, in FNJ is one of the major hindrances to FNJ production. The current study explains the impact of starter culture (Lactobacillus plantarum SK15), pasteurization and addition of EGCG on alcohol content, bioactivity, and the physiochemical property of FNJ. The pH and sugar content of the samples were reduced... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morinda citrifolia L.; Methanol; Antioxidant; EGCG; Phenolic content; Fermentation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005000311 |
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