NDLI: Major essential oil constituents, total phenolics and flavonoids content and antioxidant activity of Salvia officinalis plant in response to nano-titanium dioxide

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Major essential oil constituents, total phenolics and flavonoids content and antioxidant activity of Salvia officinalis plant in response to nano-titanium dioxide

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Indian Journal of Plant Physiology : Volume 20, Issue 2, June 2015

Indian Journal of Plant Physiology : Volume 20, Issue 1, March 2015

Indian Journal of Plant Physiology : Volume 19

Indian Journal of Plant Physiology : Volume 18

Major essential oil constituents, total phenolics and flavonoids content and antioxidant activity of Salvia officinalis plant in response to nano-titanium dioxide

Content Provider	Springer Nature Link
Author	Ghorbanpour, Mansour
Copyright Year	2015
Abstract	Medicinal plants produce a wide range of secondary metabolites to increase their performance upon exposure to various kinds of elicitors. The present study was undertaken to evaluate the impacts of various concentrations of nano-titanium dioxide (TiO$_{2}$) particles, viz., 0, 10, 50, 100, 200 and 1000 mg l$^{−1}$ on growth, biosynthesis of secondary metabolites such as essential oils, total phenolics, flavonoids and antioxidant efficacy of the extracts obtained from the treated Salvia officinalis plants, assayed using DPPH free radical scavenging and β-carotene/linoleic acid bleaching test systems. The results showed that the highest and the lowest dry weights of root and shoot tissues were obtained from plants exposed to 100 and 1000 mg l$^{−1}$ TiO$_{2}$, respectively. The highest total phenolic (35.2 mg GAE g$^{−1}$ dry wt.) and flavonoid (21.9 mg CE g$^{−1}$ dry wt.) contents were obtained in plants exposed to 200 and 100 mg l$^{−1}$ nano-TiO$_{2}$, respectively. Gas chromatography and mass spectrometry analysis showed that the major components of essential oils were monoterpenes, including Camphene, p-Cymene, 1,8-Cineol, Cis-Thujene and Camphor. The highest value of Cis-Thujene (34.5 %) and 1,8-Cineol (21.2 %) were achieved in extracts obtained from plants exposed to 200 mg l$^{−1}$ nano-TiO$_{2}$. However, the maximal content of Camphene (12.1 %) was obtained from plants exposed to 1000 mg l$^{−1}$ nano-TiO$_{2}$ treatment. Although the extract from all treated plants improved antioxidant activity, it was highest for the extract obtained from plants treated with nano-TiO$_{2}$ at 200 mg l$^{−1}$ with an IC$_{50}$ value of 2.44 µg g$^{−1}$ dry wt. as compared to that of control plants (6.42 µg g$^{−1}$ dry wt.) and butylated hydroxytoluene as positive probe (3.68 µg g$^{−1}$ dry wt.). It was suggested for the first time that nano-TiO$_{2}$ may act as an elicitor to improve secondary metabolism in S. officinalis plants for biosynthesis of natural antioxidants.
Starting Page	249
Ending Page	256
Page Count	8
File Format	PDF
ISSN	00195502
Journal	Indian Journal of Plant Physiology
Volume Number	20
Issue Number	3
e-ISSN	09740252
Language	English
Publisher	Springer India
Publisher Date	2015-07-15
Publisher Place	New Delhi
Access Restriction	Subscribed
Subject Keyword	Plant Biochemistry Salvia officinalis Nano-TiO$_{2-}$particles Plant Physiology Antioxidant metabolites Plant Sciences Cis-Thujone Plant Ecology Cell Biology Plant Genetics & Genomics
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

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