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. 2017 Nov;24(7):1513-1521.
doi: 10.1016/j.sjbs.2015.10.017. Epub 2015 Nov 10.

Phytochemical and taxonomic evaluation of Rhazya stricta in Saudi Arabia

Najat A Bukhari  1 , Reem A Al-Otaibi  1 , Mohammed M Ibhrahim  1
Affiliations

Phytochemical and taxonomic evaluation of Rhazya stricta in Saudi Arabia

Najat A Bukhari et al. Saudi J Biol Sci. 2017 Nov.

Abstract

Rhazya stricta Decne is an important medicinal species used in indigenous medicinal herbal drugs to cure various diseases in South Asia (Pakistan, India and Afghanistan) and in the Middle East (e.g. Saudi Arabia, Qatar, United Arab Emirates (UAE), Iran and Iraq). Some of its alkaloids have been reported to have anticancerous properties. The aim of our study is to examine the morphological and taxonomical parameters for R. stricta in the Saudi Arabia; concentrations and distributions of some secondary metabolites; and also to determine the antioxidant and free radical scavenging activity. The results of present study showed that there was no influence of environment on the structure of stomata and trichomes as studying species with R. stricta. In conclusion our study shows no trichomes on leaf of R. stricta it is glabrous, whereas, variations between many secondary metabolites such as flavonoids and phenolic compounds occurred in response to changing climatic conditions.

Keywords: Antioxidant; Free radical scavenging activity; Medicinal plants; Rhazya stricta; Saudi Arabia.

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Figures

Figure 1
Figure 1
Rhazya stricta in Saudi Arabia.
Figure 2
Figure 2
Light micrographs of the leaf surface showing the type stomata of Rhazya stricta in Saudi Arabia.
Figure 3
Figure 3
SEM micrographs of the leaf surface showing stomata of Rhazya stricta in Saudi Arabia.
Figure 4
Figure 4
GC–MS of isolated flavonoid compounds in Rhazya stricta collected from the middle region (Riyadh) in Saudi Arabia.
Figure 5
Figure 5
GC–MS of isolated flavonoid compounds in Rhazya stricta collected from West region in Saudi Arabia.
Figure 6
Figure 6
Evaluation of Superoxide radical scavenging assay and scavenging of hydrogen peroxide of R. stricta collected from different regions of Saudi Arabia (Ry: Riyadh; W: West).
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