Sonchus erzincanicus (Compositae) is an endemic species for Turkey [1]. Six Sonchus species grow in Turkey and are known as „sütlük, kuzu gevreği, eşek marulu“ in Turkey [2]. It has been found that some Sonchus species contain sesquiterpene lactone glucosides, flavonoids, triterpenes and steroids [3,4]. In this study, the antibacterial and anticandidal activity of aerial parts of Sonchus erzincanicus Matthews methanol extract and fractions (CHCl3, EtOAc, aqueous) prepared from methanol extract were evaluated against clinical bacterial and Candida strains.
Tested organism
|
Zone of inhibition (mm)
|
|
Water
|
MeOH
|
EtOAc
|
CHCl 3
|
Escherichia coli
|
10
|
15
|
13
|
14
|
Staphylococcus aureus
|
-
|
10
|
-
|
5
|
Enterobacter aerogenes
|
-
|
10
|
-
|
-
|
Candida albicans
|
-
|
13
|
12
|
13
|
Candida glabrata
|
-
|
10
|
10
|
-
|
Candida parapsilosis
|
-
|
-
|
10
|
10
|
Ampicillin (10µg) >19–10mm sensitive Amphotericin B (10µg) >15–10mm sensitive
References: [1] Matthews, V.A. (1975) Sonchus L. Flora of Turkey and the East Aegean Islands, University Pres. Edinburgh, Volume: 5, pp. 690–696 (edited by Davis, P. H.). [2] Akartürk, R. (2001) Şifalı Bitkiler Flora ve Sağlığımız, Orman Genel Müdürlüğü Mensupları Yardımlaşma Vakfı (in Turkish). [3] Helal A.M. et al. (2000) Phytochemistry 53(4), 473–477. [4] Devkota, K.P. (2005). Ph. D. Thesis, Research Institute Of Chemistry/University of Karachi.