Meet Inspiring Speakers and Experts at our 3000+ Global Conference Series Events with over 1000+ Conferences, 1000+ Symposiums
and 1000+ Workshops on Medical, Pharma, Engineering, Science, Technology and Business.

Explore and learn more about Conference Series : World's leading Event Organizer

Back

Hilal Kılınç

Hilal Kılınç

Dokuz Eylül University, Turkey

Title: The new steroids from Silene Montbretiana

Biography

Biography: Hilal Kılınç

Abstract

Silene genus (Caryophyllaceae) is represented by 119 species, wild and cultivated, in Middle and East Anatolia, Azerbaijan, Iran and Iraq. Due to its wide range of biological and pharmacological effects, Silene species are used as herbal medicine. S. gonosperma, S. morcrooftiana W., S. edgeworthii, S. chlorifolia, S. acaulis, S. floscuculi L. and S. vulgaris have been used in the treatment of eye and skin problems, dysentery, inflammation, colic, malaria and stomach pains, urinary infection, respectively. S. vulgaris has been used for its sedative effect and as an anti-toxic agent. Modern biological studies have shown that Silene species exhibit a wide range of biological actions. It has been reported that S. armeria L. showed moderate antifungal activity against all plant pathogens. S. swertiifolia and S. spergulifolia had a high antibacterial activity against gram negative and positive bacteria. S. montbretiana was collected from Malatya, Turkey in 2010. Air-dried and powdered whole plant material was extracted with MeOH. After filtration, the residue was dissolved in water and then partitioned n-BuOH saturated with H2O. The n-BuOH phase was fractioned over RP-VLC to give eight main fractions. Fractions were subjected to open column chromatography by using normal and reverse phase silica gel as adsorbents. This is the first study that describes the isolation and identification of secondary metabolites from S. montbretiana. In this study, two new steroids (SM 4, SM 16) 2β,3β,14α,20S,25- pentahydroxy-cholest 7-en-6-one, 3-O-β-D-glucopyranosyl,25- O-β-D-glucopyranosyl-3β,25- dihydroxycholest-7-en-6-one, along with eight known compounds (six steroids, one flavonoid, and one cerebroside) were isolated from the methanolic extract. Their structures were elucidated by extensive spectroscopic methods including 1D- and 2D-NMR techniques as well as ESIMS and HRMS analyses.

 

Acknowledgement

This work is supported by TÜBITAK (114Z226) and Ege University Research Foundation (2012-Fen-047).

Recent Publications

1. Davis, P.H., 1967, Flora of Turkey and East Aegean Islands, Edinburgh University Press, Edinburgh.

2. Kayani , S. et al. 2015, J Ethnopharmacol,164:186-202.

3. Özdemir, E. and Alpınar, K., 2015, J Ethnopharmacol, 166:53-65

4. Moerman, D., 1998, Native American Ethnobotany, Timber Press, Oregon.

5. Leto, C. et al. 2013, J Ethnopharmacol, 146:90-112

6. Ballero, J. and Fresu, I., 1993, Fitoterapia, 64: 141-150.

7. Golovko, V.A. and Bushneva, O.A., 2007, B Exp Biol Med, 143:284-286

8. Bajpai, V.K. et al. 2008, Bioresource Technol, 99:8903-8908.

9. Karamian, R. and Ghasemlou, F., 2013, Int J Agric Crop Sci, 5:305-312.

Speaker Presentations

Speaker PPTs Click Here