Medicinal plant extracts with efflux inhibitory activity against Gram-negative bacteria

2011 ◽  
Vol 37 (2) ◽  
pp. 145-151 ◽  
Author(s):  
Mark I. Garvey ◽  
M. Mukhlesur Rahman ◽  
Simon Gibbons ◽  
Laura J.V. Piddock
Keyword(s):  
Medicinal Plant ◽  
Plant Extracts ◽  
Inhibitory Activity ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Medicinal Plant Extracts

scholarly journals Acetylcholinesterase Inhibitory Activity and Antioxidant Activity of Selected Medicinal Plant Extracts Used Against Cognitive Dysfunction and Memory Loss in Sri Lankan Traditional Medicine

2018 ◽  
Vol 6 (5) ◽  
pp. 16-25
Author(s):  
Anoja Priyadarshani Attanayake ◽  
Kamani Ayoma Perera Wijewardana Jayatilaka
Keyword(s):  
Antioxidant Activity ◽  
Medicinal Plant ◽  
Plant Extracts ◽  
Inhibitory Activity ◽  
Ricinus Communis ◽  
Centella Asiatica ◽  
Sri Lankan ◽  
Medicinal Plant Extracts ◽  
Ache Inhibitory Activity ◽  
Alzheimer’S Diseases

The objectives of the study were to determine the acetylcholinesterase (AChE) inhibitory activity and antioxidant activity in the selected Sri Lankan medicinal plants. AChE inhibitory activity of the selected medicinal plant extracts was determined using the Ellman’s method. The antioxidant activities were determined by four in vitro methods namely DPPH assay, FRAP assay, NO assay and TBA acid method.  The contents of total polyphenols and flavonoids were determined quantitatively.Out of the ten selected medicinal plant extracts Abrus precatorius, Centella asiatica, Strychnos nux-vomica and Ricinus communis showed IC50 values < 200 µg/mL for AChE inhibitory activity. A high antioxidant activity was shown in the extracts of Cardiosprmum halicacabum, Centella asiatica and  Ricinus communis in  the four selected antioxidant assays.  The total polyphenol content and total flavonoid content was in the range of 0.55-7.30 mg/g DW and 19.08±0.29-1283.08± 0.09 µg/gDW. The extracts of A. precatorius, C. asiatica, S. nux-vomica and R. communis are deserved to be as potent sources of AChE inhibitors as well as natural antioxidants. Considering the complex multifactorial etiology of Alzheimer's diseases, these plant extracts would be apt candidates for the development of novel pharmaceutical agents in the management of Alzheimer's diseases.  

scholarly journals Antibacterial activity of honey and medicinal plant extracts against Gram negative microorganisms

2014 ◽  
Vol 13 (4) ◽  
pp. 616-625 ◽  
Author(s):  
JN Ramalivhana ◽  
A Samie ◽  
BC Iweriebor ◽  
P Uaboi-Egbenni ◽  
J.E Idiaghe ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Plant Extracts ◽  
Gram Negative ◽  
Medicinal Plant Extracts

Screening of 50 medicinal plant extracts for quercetin-3-rutinoside

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
E Sofic ◽  
M Salihovic ◽  
S Huseinovic ◽  
S Cavar ◽  
A Copra-Janicijevic ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Plant Extracts ◽  
Medicinal Plant Extracts

Screening of Venezuelan medicinal plant extracts for cytostatic and cytotoxic activity against tumour cell lines

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
P Taylor ◽  
M Arsenak ◽  
MJ Abad ◽  
Á Fernández ◽  
R Gonto ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Cytotoxic Activity ◽  
Cell Lines ◽  
Plant Extracts ◽  
Tumour Cell ◽  
Medicinal Plant Extracts ◽  
Tumour Cell Lines

Effects of two kinds of medicinal plant extracts on citrus postharvest preservation

2013 ◽  
Vol 38 (6) ◽  
pp. 623-625
Author(s):  
Su-ming DAI ◽  
Jian-guo ZENG ◽  
Pi CHENG ◽  
Yi-ming CHEN ◽  
Xiang ZHOU ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Plant Extracts ◽  
Medicinal Plant Extracts
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