Consulta: subjectFacets:"Bactericidal"
Registros recuperados: 3
Data/hora: 04/06/2024 06:40:33

Sunscreen, antioxidant, and bactericide capacities of phlorotannins from the brown macroalga Halidrys siliquosa
Provedor de dados: 5
Autores: Le Lann, Klervi; Surget, Gwladys; Couteau, Celine; Coiffard, Laurence; Cerantola, Stephane; Gaillard, Fanny; Larnicol, Maud; Zubia, Mayalen; Guerard, Fabienne; Poupart, Nathalie; Stiger-pouvreau, Valerie.
The present study focused on a brown macroalga (Halidrys siliquosa), with a particular emphasis on polyphenols and their associated biological activities. Two fractions were obtained by liquid/liquid purification from a crude hydroethanolic extract: (i) an ethyl acetate fraction and (ii) an aqueous fraction. Total phenolic contents and antioxidant activities of extract and both fractions were assessed by in vitro tests (Folin-Ciocalteu test, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, reducing power assay, superoxide anion scavenging assay, and beta-carotene-linoleic acid system). For the most active fraction, i.e., the ethyl acetate fraction, the oxygen radical absorbance capacity (ORAC) value, antibacterial activities, and sunscreen...
Tipo: Text
Palavras-chave: Antioxidant; Bactericidal; Phenolic compounds; Phaeophyceae; Seaweed; ORAC value; Sunscreen potential.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00366/47682/47970.pdf

Antibacterial potential of a basic phospholipase A2(VRV-PL-VIIIa) from Daboia russelii pulchella (Russell's viper) venom
Provedor de dados: 80
Autores: Sudharshan,Shivalingaiah; Dhananjaya,Bhadrapura Lakkappa.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snake venom; Bactericidal; Antibiotics; Drug; Human pathogenic bacteria.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100322

Inactivation of Escherichia coli O157:H7 by essential oil from Cinnamomum zeylanicum
Provedor de dados: 55
Autores: Senhaji,Ouafae; Faid,Mohamed; Kalalou,Ichraq.
Escherichia coli O157:H7 is a pathogen strain, which causes hemorrhagic colitis, hemolytic uremic syndrome and thrombotic thrombocytopenic purpura in humans. The control of bacterial cells in foods is an important factor to reduce foodborne diseases due to E. coli O157:H7. Assays to inactivate E. coli O157:H7 were carried out by using the cinnamon oil obtained by steam distillation for 6 hours. When E. coli O157:H7 cells were incubated at 37°C for 2 hours in the presence of 0.025% of the essential oil from cinnamon, a dramatic decrease was observed in the viable counts (from 10(7) to 3.10(4) CFU/mL-1). In the presence of 0.05% of the oil, most of cells were killed after 30 min, suggesting that the antimicrobial activity of essential oil is bactericidal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial effect; Bactericidal; Essential oil; Cinnamon; E. coli O157:H7.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000200013