Chemical composition and biological activities ofEruca vesicariasubsp. longirostrisessential oils

Abstract

Context To date, there are no reports to validate the Tunisian traditional and folklore claims of Eruca vesicaria (L) Cav. subsp. longirostris (Brassicaceae) for the treatment of disease. Objective Investigation of the chemical composition antimicrobial and antioxidant activity of essential oils from Eruca longirostris leaves, stems, roots and fruits. Materials and methods The essential oils of E. longirostris from leaves, stems, roots and fruits were obtained after 4 h of hydrodistillation. Chemical compositions were determined using a combination of GC/FID and GC/MS. The in vitro antimicrobial activity of the volatile constituents of E. longirostris was performed in sterile 96-well microplates against three Gram-positive, four Gram-negative bacteria and one strain as yeast. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration values were reported. Furthermore, the antioxidant activity was evaluated by DPPH and ABTS assays. Results The main compound for fruits, stems and roots was the erucin (96.6%, 85.3% and 83.7%, respectively), while b-elemene (35.7%), hexahydrofarnesylacetone (23.9%), (E)-b-damascone (15.4%), erucin (10.6%) and a-longipinene (9.6%) constituted the major compounds in the essential oil of the leaves. The experimental results showed that in all tests, essential oil of fruits showed the better antioxidant activity than the others. On the other hand, the oils of stems, fruits and roots showed significant antimicrobial activity with MIC values ranging from 0.125 to 0.31 mg/mL against Candida species, Gram-positive and Gram-negative bacteria, mainly Salmonella enterica. Conclusions The present results indicate that essential oils of E. longirostris can be used as a source of erucin. ARTICLE HISTORY

Cellular antioxidant activity and in vitro intestinal permeability of phenolic compounds from four varieties of mango bark (Mangifera indica L.)

“…An oxygen radical absorbance capacity (ORAC) assay was performed by the method previously described and the ORAC values were expressed as micromole of Trolox equivalents (TE) per gram of DW (µmol TE g −1 DW). The ABTS + radical scavenging activity was measured according to a method reported earlier . The values were expressed as micromole TE per 100 g of DW (µmol TE g −1 DW).…”

“…The ABTS + radical scavenging activity was measured according to a method reported earlier. 9 The values were expressed as micromole TE per 100 g of DW (μmol TE g −1 DW).…”

Anti-inflammatory and gastroprotective potential of leaf essential oil of Cinnamomum glanduliferum in ethanol-induced rat experimental gastritis

“…Benefits of essential oil stem from their reported medicinal uses as antioxidant, antimicrobial and anti-inflammatory properties (Eldahshan 2015;Salleh et al 2015;Eldahshan & Halim 2016;Omri Hichri et al 2016). Cinnamomum (Lauraceae) is a genus of evergreen shrubs and trees.…”

Establishing Gerger (<i>Eruca sativa</i>) Leaves as Functional Food by GC-MS and <i>In-vitro</i> Anti-lipid Peroxidation Assays

“…Food plays a significant role in reducing oxidative stress. Food antioxidants mitigate the development of cancer, diabetes mellitus, hypertension, inflammation, and obesity [10,21,25]. Gerger leaves regularly consumed raw by Saudi people and also worldwide can have health benefits owing to the antioxidant potential.…”

“…The methanol extract of gerger leaves was able to exhibit in-vivo antioxidant activity in rats [22], and the ethanolic extract improved the reproduction in male rats [23], also show in-vitro free radical scavenging activity [24]. The essential oil extracted from gerger leaves contain erucin, an isothiocyanate derivative shown to exhibit anticancer, antibacterial, and free radical scavenging activities [25,26]. Gerger leaves are also useful as anti-ulcer, astringent, antiphlogistic, diuretic, and laxative [16].…”