Chemical composition and antimicrobial activities of essential oil from the peel of bingtang sweet orange (Citrus sinensis Osbeck)

Abstract

The chemical composition of the essential oil obtained from the peel of Bingtang sweet orange (Citrus sinensis Osbeck) was analysed by gas chromatography and gas chromatography ⁄ mass spectrometry (GC ⁄ MS). Twenty-seven components were identified. The monoterpenes and sesquiterpene hydrocarbons with 96.03% (w ⁄ w) of the total oil were the principal compound groups. Among which, limonene was observed dominant (77.49%), followed by myrcene (6.27%), a-farnesene (3.64%), c-terpinene (3.34%), apinene (1.49%), sabinene (1.29%) and other minor components. Results by disc diffusion method and minimum inhibitory concentration (MIC) determination method showed that the essential oil had a wide spectrum of antimicrobial activities against Staphylococcus aureus, Penicillium chrysogenum, Bacillus subtilis, Escherichia coli and Saccharomyces cerevisiae, with their inhibition zones ranging from 14.57 mm to 23.37 mm and the MIC ranging from 4.66 lL mL )1 to 18.75 lL mL )1 .

D-limonene rich volatile oil from blood oranges inhibits angiogenesis, metastasis and cell death in human colon cancer cells

“…Similar results were reported by other researchers examining C. sinesis grown in other parts of the world (K rbaslar et al, 2009;Njoroge et al, 2005;Selli et al, 2007;Sharma and Tripathi, 2006). For example, twenty-seven components were identified in essential oil obtained from the peel of Bingtang sweet orange (C. sinensis Osbeck) from China with 77.48% of D-limonene (Tao et al, 2009). The variation in chemical composition may be due to the treatment of sweet orange flavedo with dilute calcium hydroxide; also, the sample was dried at 45°C during sample preparation.…”

Composition of the Essential Oil of Bidens tripartita L. Roots and Its Antibacterial and Antifungal Activities

“…The antifungal effect caused by essential oil appears to be connected with interaction of proteins of the fungal cell membrane and components of the oil. 15,29 Comparison of our results with previous studies and literature data is very difficult because of differences in chemical composition of essential oils obtained from different part of the same plant, different fungal and bacterial strains, and their sensitivity. There is also no consensus as to how to correlate activity of essential oil with its composition.…”

Composition of the Volatiles ofCitrus macropteravar.annamensisand Evaluation of Bioactivity

“…Citrus species where limonene was reported as the major compound in the Citrus volatile oils [28][29][30][31] . 1,8-Cineole, α-humulene, geranial, geraniol and nerol were identified in trace amounts.…”