Assessment of NOx concentration level on Gosford street in Coventry-United Kingdom

Lopez, July Steffany Gonzalez; Ome, Arnold Ferney Torres; Mogollon, Omar Fernando Cuadro

doi:10.12988/ces.2018.8224

Cited by 1 publication

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“…On the other hand, the reference [15] reported the antibacterial activity of crude methanolic extract from Larrea tridentata leaves founding that Gram-positive bacteria are more sensible than Gram-negative bacteria. In fact Gram-negative bacteria sensibility could be explained by the presence of a cellular membrane, which limits access of the antimicrobial agents to their targets in the bacterial cell [16] [17]. The MIC value of the fruit extract ranged from 974 to 5754 µg/mL for tested bacteria.…”

Section: Antimicrobial Assaymentioning

confidence: 99%

In vitro antibacterial and antioxidant activity of muntingia calabura fruits extract

Mogollon¹,

González-Cuello²,

Lopez³

2018

ces

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The study aim was to evaluate the antioxidant and antimicrobial activity of Muntingia calabura fruits extracts, cultivated in Colombia. The antioxidant activities of the extracts were also examined using diphenylpicrylhydrazyl (DPPH) method. The antibacterial activity of the extracts was evaluated through disc diffusion method. M. calabura fruits extracts were tested against foodborne pathogens such as Staphylococcus aureus, Bacillus cereus, Pseudomonas aeruginosa, and Escherichia coli. Based on the minimal inhibitory concentration (MIC), the highest antimicrobial activity was found against S. aureus and B. cereus in comparison with P. aeruginosa and E. coli. It means that the inhibition degrees are different between Gram positive and Gram negative bacteria. With respect to the antioxidant activity, high values (IC50 = 83.17 ± 1.8) were obtained. These findings suggest the possibility of use of M. calabura for the active films development for the 882 Omar Fernando Cuadro Mogolln et al. food matrixes conservation. This study reports firstly a high degree of antibacterial and antioxidant activities of M. calabura fruit cultivated in Colombia against foodborne pathogens.

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Section: Antimicrobial Assaymentioning

confidence: 99%