Chemical Composition and Antimicrobial Activity of Volatile Components ofScorzonera undulata

Abstract

The volatile constituents of the aerial parts of Scorzonera undulata Vahl subsp. deliciosa (Guss.) Maire obtained by steam distillation were analyzed by GC and GC/MS. Thirty six constituents were identified in the oil and the main components of which were methyl hexadecanoate (30.4%), methyl linolenate (23.9%) and heneicosane (12.2%) The antimicrobial activity of the oil was also investigated. The Scorzonera undulata subsp. deliciosa oil exhibited an interesting antibacterial activity against Gram-positive and Gram-negative bacteria except for Pseudomonas aeruginosa but no antifungal activity was detected.

Phytochemical Composition and Biological Activities of Scorzonera Species

“…The authors suggest that greater activity against Gram-positive bacteria strains could be caused by easier penetration through the lipophilic cell membranes by hydrophobic ingredients of the oil. Unfortunately, no reference compound was assessed together with the oil, thus it is difficult to compare those results with any known antibacterial substances [ 90 ].…”

Composition of the Volatile Components Extracted from the Roots of <i>Scorzonera undulata</i> ssp <i>deliciosa</i> (Guiss) Maire: From Algeria

“…Previous phytochemical investigation on Scorsonera species showed that the main constituents of the aerial parts of S. undulata oil from Tunisia were the aliphatic esters and aliphatic hydrocarbons [3]. The main components of S. hispanica from Netherlands were aliphatics acid and aliphatic hydrocarbons [4], while aliphatic hydrocarbons and alcohols were the main constituents of S. mongolica oil from China [5].…”

Evaluation Of Anti-Fungal Potential Of Cinnamomum Zeylanicum Blume (Lauraceae) Barks Extract For Onychomycosis

“…Phenols are said to offer resistance to diseases and pests in plants. Grains containing high amount of polyphenols are resistant to bird attack [22]. Interestingly, phytochemical screening of the current investigation has revealed that extracts from both the plant parts possess at least three to four of the following classes of secondary metabolites: phenols, flavonoids, terpenoids, tannins, alkaloids and saponins.…”