Antibacterial and antioxidant activity of wild-growing Angelica species (Apiaceae) from Balkan Peninsula against human pathogenic bacteria

2020 ◽  
Vol 32 (5) ◽  
pp. 464-473
Author(s):  
Nemanja Stanković ◽  
Tatjana Mihajilov-Krstev ◽  
Bojan Zlatković ◽  
Vesna Stankov-Jovanović ◽  
Branislava Kocić ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Pathogenic Bacteria ◽  
Balkan Peninsula ◽  
Human Pathogenic Bacteria ◽  
Antibacterial And Antioxidant Activity

scholarly journals Antibacterial and Antioxidant Activity of Traditional Medicinal Plants from the Balkan Peninsula

2016 ◽  
Vol 78 ◽  
pp. 21-28 ◽  
Author(s):  
Nemanja Stanković ◽  
Tatjana Mihajilov-Krstev ◽  
Bojan Zlatković ◽  
Vesna Stankov-Jovanović ◽  
Violeta Mitić ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Medicinal Plants ◽  
Balkan Peninsula ◽  
Traditional Medicinal Plants ◽  
Antibacterial And Antioxidant Activity

scholarly journals Antibacterial and Antioxidant Activity of Newly Keratinolytic Bacteria, Azotobacter chroococcum B4

2020 ◽  
Vol 13 (2) ◽  
pp. 123-127
Author(s):  
Jendri Mamangkey ◽  
Dwi Suryanto ◽  
Erman Munir ◽  
Apon Zaenal Mustopa
Keyword(s):  
Antioxidant Activity ◽  
Listeria Monocytogenes ◽  
Pathogenic Bacteria ◽  
Animal Feed ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Dpph Radical Scavenging ◽  
Antibacterial And Antioxidant Activity ◽  
Antibacterial Potential

Keratinolyticbacteria of A. chrocoocum B4 was evaluated for its potential of antibacterial and antioxidant activity. Kirby-Bauer method was used to know antibacterial potential of B4 againtsStaphylococcus aureus, S. epidermidis, Bacillus cereus, Bacillus pumilus, Bacillus subtilis, Listeria monocytogenes, Proteus sp., enteropathogenicEscherichia coli, Enterobactersakazakii, and Salmonella enterica. Antioxydant test was done using DPPH radical scavenging activity assay with ascorbic acid as a controll. In this study, hydrolysate of pellet, dialysis, and fraction 25 of B4 keratinase purification of previous study was used for antibacterial and antioxidant test. The result showed that B4 hydrolysatesinhibited Gram positive pathogenic bacteria such as Staphylococcus aureus and Listeria monocytogenes, and Gram negative Enterobacter sakazakii. All hydrolysates showed to have antioxidant properties in which fraction 25 showed higher compared to that of others. This study showed poultry waste-derived keratinase of B4 might be useful as supplementary protein, antibacterial, and antioxidant in the animal feed formulations.

Pro-/antioxidant and antibacterial activity of olive leaf extracts according to bioavailability of phenolic compounds

2020 ◽  
pp. 479
Author(s):  
J. Rocha-Pimienta, D. Martín-Vertedor ◽  
R. Ramírez, J. Delgado-Adámez
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Phenolic Compounds ◽  
Matrix Effect ◽  
Pathogenic Bacteria ◽  
Biological Activities ◽  
Future Application ◽  
Olive Leaf ◽  
Anti Oxidant ◽  
Antibacterial And Antioxidant Activity

The olive leaf extract (OLE) is an aqueous extract from dried olive leaves which contains high amount of phytochemicals with biological activities.  The aim of this work was to study the changes in phenolic compounds content, antibacterial and antioxidant activity of the OLE after an in vitro gastrointestinal process in presence of intestinal microorganisms. In addition, the matrix effect of major individual phenolic compounds was evaluated. The OLE individual phenolic compounds quantification was determined by HPLC. The OLE contained different phenolic compounds, such as hydroxytyrosol, oleuropein and tyrosol and after digestion, these amount bioavailable detected decreased. Additionally, the antibacterial and antioxidant activity of the extract was also significantly reduced after gastrointestinal digestion. Individual phenolic compounds of OLE showed a high antimicrobial activity against pathogenic bacteria and these showed a synergic and matrix effect in extract. Besides, these compounds showed a concentration-depend pro-/anti-oxidant activity. Therefore, although the extract is rich in phenolic compounds, the levels of these were reduced along digestion process advances, and also their antioxidant and antibacterial activity. In addition, the pro-/anti-oxidant activity shown by the extract and its major phenolic compounds must be delved into, as this may or may not be convenient depending on the future application of the extract.

scholarly journals ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY OF KIWI FRUIT

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
A Siddique ◽  
N Idrees ◽  
M Kashif ◽  
R Ahmad ◽  
A Ali ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Food Industry ◽  
Pathogenic Bacteria ◽  
Antioxidant Activities ◽  
Aspergillus Ochraceus ◽  
Aspergillus Versicolor ◽  
Kiwi Fruit ◽  
Natural Form ◽  
Processed Form ◽  
Antibacterial And Antioxidant Activity

The kiwi fruit has been drawing attention and a great deal of interest because of its health benefits. It is consumed in its natural form, while it is being presented in processed form by the food industry such as sweets, ice creams, frozen juice or pulp, and many other byproducts. The peel of kiwi fruit which is a byproduct of fruit is still under exploration, but it has raised much interest in this by-product because this has many bioactive molecule contents in it such as phenolic compounds. Kiwi fruit has shown antimicrobial activity apart from the antioxidant activity against many pathogenic bacteria i.e. Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Listeria monocytogenes as well as fungi like Penicillium funiculosum, Aspergillus niger, Aspergillus versicolor and Aspergillus ochraceus. With the presence of antibacterial, antifungal, and antioxidant activities in kiwi fruit, it may be used as a potential medicinal fruit.

scholarly journals TO STUDY THE ANTIBACTERIAL ACTIVITY OF VARIOUS EXTRACTS OF CLAUSENA DENTATA (WILLD.) ROEM.

2019 ◽  
pp. 69-73
Author(s):  
ANNAMALAI MADURAM ◽  
RAJU KAMARAJ
Keyword(s):  
Antibacterial Activity ◽  
Tamil Nadu ◽  
Pathogenic Bacteria ◽  
Volatile Oil ◽  
Stem Bark ◽  
Salmonella Typhi ◽  
Chloroform Extract ◽  
Klebsiella Pneumonia ◽  
Human Pathogens ◽  
Human Pathogenic Bacteria

Objectives: The objectives of the study were to study the antibacterial activity for the various extracts of Clausena dentata against human pathogens. Clausena (Rutaceae) is a genus of about 23 species of unarmed trees and shrubs. The stem bark of C. dentata is used in veterinary medicine for the treatment of wounds and sprains. Even though C. dentata has a lot of potential medical uses, the study of microbiological properties is very scarce. Methods: The plant C. dentata was collected from Kadagaman, near Tiruvannamalai, Tamil Nadu, India, and authenticated by Centre for Advanced Study in Botany, University of Madras, Chennai. The dry powder of stem bark was extracted with hexane, chloroform, and methanol. The extracts were subjected to qualitative phytochemical screening and antibacterial activity against human pathogenic bacteria such as Escherichia coli, Salmonella Typhi, Klebsiella pneumonia, Vibrio cholerae, and Staphylococcus aureus and compared with ciprofloxacin. Results: Qualitative chemical tests revealed the presence of various phytochemicals such as alkaloids, glycosides, carbohydrate, proteins and amino acids, phytosterols, and volatile oil. The antibacterial activity result reveals that all the extracts were are more active against V. cholerae. The activity against Pseudomonas aeruginosa was mild. Conclusion: The activity against V. cholerae was comparable with that of 5 μg/mL ciprofloxacin at the concentration of C. dentata 40 μg/mL. The orders of antibacterial activity against human pathogenic bacteria are hexane, methanol, and chloroform extract of C. dentata.

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