scholarly journals Phytochemical screening and in vitro evaluation of antioxidant and antibacterial activities of Teucrium trifidum crude extracts

Heliyon ◽  
2020 ◽  
Vol 6 (9) ◽  
pp. e04395
Author(s):  
Irene Rumbidzai Mazhangara ◽  
Emrobowansan Monday Idamokoro ◽  
Eliton Chivandi ◽  
Anthony Jide Afolayan
Keyword(s):  
Antibacterial Activities ◽  
Phytochemical Screening ◽  
In Vitro Evaluation ◽  
Crude Extracts

Antibacterial Activities and Phytochemical Screening of Crude Extracts from Kenyan Macaranga Species Towards MDR Phenotypes Expressing Efflux Pumps

2021 ◽  
Vol 11 (2) ◽  
pp. 119-126
Author(s):  
Ibrahim Hashim ◽  
Leonidah Kerubo Omosa ◽  
Vaderament-Alexe Nchiozem-Ngnitedem ◽  
John Mmari Onyari ◽  
Shital Mahindra Maru ◽  
...  
Keyword(s):  
Efflux Pumps ◽  
Antibacterial Activities ◽  
Phytochemical Screening ◽  
Crude Extracts

scholarly journals In-vitro Antimicrobial Activities and Phytochemical Screening of Selected Plant Extracts against Some Medically and Agriculturally Important Pathogens

2020 ◽  
pp. 167-189
Author(s):  
Yirgashewa Asfere ◽  
Ameha Kebede ◽  
Dejene Zinabu
Keyword(s):  
Stem Bark ◽  
Antibacterial Activities ◽  
Antimicrobial Activities ◽  
Plant Parts ◽  
Antibacterial And Antifungal Activities ◽  
Ruta Chalepensis ◽  
Crude Extracts ◽  
Growth Inhibitory ◽  
Scientific Justification

In Ethiopia, many plants are used for medicinal drive-by old-style naturopaths without any scientific justification for their therapeutic values. The principal aim of this study were to evaluate the in vitro antibacterial and antifungal activities of the leaf, root and stem bark extracts of Rhamnus prinioides (gesho), Justicia schimperiana (sensel) and Ruta chalepensis (Tena adam) against some common pathogenic species of bacteria and fungi. The results of this study shown that the crude extracts of ethanol, methanol, hexane and water crude extracts had antimicrobial activities on most bacterial and fungi species of some solvent extracts. Ethanol and methanol crude extracts had the highest growth inhibitory effects as compared with those of the aqueous and hexane crude extracts. But, the four solvent crude extracts had fewer antimicrobial activities than commercially available drug(chloramphenicol and clotrimazole). Campylobacter jejuni and Staphylococcus aureus were found to be the most vulnerable microbes to the crude ethanol (99.5%). The growth-inhibitory events of the crude extracts were found to be significantly dissimilar for both concentrations (30 and 60 mg/ml) in all plant parts (p < 0.05). In general, this study did not only indicate that the antibacterial activities of R. prinioides (gesho), J. schimperiana (sensel) and R. chalepensis (Tena adam). It also accesses a scientific justification for its old-style use against some diseases.

scholarly journals In vitro evaluation of the antibacterial activities of radezolid and linezolid for Streptococcus agalactiae

2020 ◽  
Vol 139 ◽  
pp. 103866
Author(s):  
Jin-xin Zheng ◽  
Zhong Chen ◽  
Zhi-chao Xu ◽  
Jun-wen Chen ◽  
Guang-jian Xu ◽  
...  
Keyword(s):  
Streptococcus Agalactiae ◽  
Antibacterial Activities ◽  
In Vitro Evaluation

Phytochemical screening and in-vitro evaluation of pharmacological activities of peels of Musa sapientum and Carica papaya fruit

2017 ◽  
Vol 32 (11) ◽  
pp. 1333-1336 ◽  
Author(s):  
Sarmad Siddique ◽  
Shamsa Nawaz ◽  
Faqir Muhammad ◽  
Bushra Akhtar ◽  
Bilal Aslam
Keyword(s):  
Carica Papaya ◽  
Phytochemical Screening ◽  
Pharmacological Activities ◽  
In Vitro Evaluation ◽  
Musa Sapientum

scholarly journals Tristemma hirtumand Five Other Cameroonian Edible Plants with Weak or No Antibacterial Effects Modulate the Activities of Antibiotics against Gram-Negative Multidrug-Resistant Phenotypes

2018 ◽  
Vol 2018 ◽  
pp. 1-12
Author(s):  
Gaëlle S. Nguenang ◽  
Armelle T. Mbaveng ◽  
Aimé G. Fankam ◽  
Hermione T. Manekeng ◽  
Paul Nayim ◽  
...  
Keyword(s):  
Antibacterial Activities ◽  
Multidrug Resistant ◽  
Phytochemical Analysis ◽  
Edible Plants ◽  
Phytochemical Screening ◽  
Antibacterial Effects ◽  
Gram Negative ◽  
Microdilution Method ◽  
Raphia Hookeri

In order to contribute to the fight against infectious diseases, thein vitroantibacterial activity and the antibiotic-potentiating effects ofTristemma hirtumand five other Cameroonian edible plants have been evaluated against Gram-negative multidrug-resistant (MDR) phenotypes. The microdilution method was used to evaluate the bacterial susceptibility of the extracts and their combination to common antibiotics. The phytochemical screening of the extracts was carried out according to standard methods. Phytochemical analysis of the extracts revealed the presence of alkaloids, triterpenes, steroids, and polyphenols, including flavonoids in most of the tested extracts. The entire tested extracts showed moderate (512 μg/mL ≤ MIC ≤ 2048 μg/mL) to weak (MIC > 2048 μg/mL) antibacterial activities against the tested bacteria. Furthermore, extracts of leaf ofTristemma hirtumand pericarpsofRaphia hookeri(at their MIC/2 and MIC/4) strongly potentiated the activities of all antibiotics used in the study, especially those of chloramphenicol (CHL), ciprofloxacin (CIP), kanamycin (KAN), and tetracycline (TET) against 70% (7/10) to 100% (10/10) of the tested MDR bacteria, with the modulating factors ranging from 2 to 128. The results of this study suggest that extracts from leaves ofTristemma hirtumand pericarps ofRaphia hookerican be sources of plant-derived products with antibiotic modifying activity.

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