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. 2016 Jan 25:16:29.
doi: 10.1186/s12906-016-0998-z.

Chemical composition, antioxidant and anticholinesterase potentials of essential oil of Rumex hastatus D. Don collected from the North West of Pakistan

Sajjad Ahmad  1 , Farhat Ullah  2 , Abdul Sadiq  3 , Muhammad Ayaz  4 , Muhammad Imran  5 , Imdad Ali  6 , Anwar Zeb  7 , Farman Ullah  8 , Muhammad Raza Shah  9
Affiliations

Chemical composition, antioxidant and anticholinesterase potentials of essential oil of Rumex hastatus D. Don collected from the North West of Pakistan

Sajjad Ahmad et al. BMC Complement Altern Med. .

Abstract

Background: Ethnomedicinally Rumex hastatus D. Don has been used since long for various ailments especially in neurological disorders. The reported data and the importance of Rumex genus demonstrate the vital medicinal value of R. hastatus.

Methods: In the current investigational study, isolation of essential oil and its antioxidant and anticholinesterase assays were performed. The essential oil of R. hastatus was analyzed by GC-MS for the first time. The essential oil was evaluated for anticholinesterase and antioxidant assays. The anticholinesterase assay was conducted at various concentrations (62.5 to 1000 μg/ml) against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). Similarly, the antioxidant potential was determined using DPPH and ABTS free radicals.

Results: The GC-MS analysis of essential oil showed 123 components. The result recorded for the anticholinesterase assays demonstrated a marked potential against AChE and BChE with IC50 values of 32.54 and 97.38 μg/ml respectively which were comparable with the positive control i.e., galanthamine (AChE, IC50 = 4.73 μg/ml and BChE, IC50 = 11.09 μg/ml). The antioxidant assays against DPPH and ABTS free radicals also exhibited significant scavenging potential with IC50 values of 3.71 and 6.29 μg/ml respectively, while for ascorbic acid the IC50 value was <0.1 μg/ml against both free radicals.

Conclusions: Based on the current investigational studies, it may be concluded that R. hastatus is an effective source of essential oil's components having anticholinesterase and antioxidant potentials, which after subjecting to drug development may lead to novel drug candidates against neurodegenerative disorders.

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Figures

Fig. 1
Fig. 1
Antioxidant potential of essential of Rumex hastatus against DPPH and ABTS
Fig. 2
Fig. 2
a. Regression and correlation of percent BChE inhibition of essential oil Vs Galanthamine. b. Regression and correlation of percent AChE inhibition of essential oil Vs Galanthamine
Fig. 3
Fig. 3
Structures of some important components of essential oil of Rumex hastatus
Fig. 4
Fig. 4
GC-MS Chromatogram of essential oil of Rumex hastatus
See this image and copyright information in PMC

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