Chemical Composition and Antibacterial Activity of the Essential Oil of Monticalia andicola (Asteraceae) Collected in Venezuela

Abstract

The essential oil from the leaves of Monticalia andicola Turcz., collected in November 2008, was analyzed by GC/MS. A yield of 0.15% oil was obtained by hydrodistillation. Thirty-six components were identified by comparison of their mass spectra with those in the Wiley GC-MS Library data base. The major components were α-pinene (19.6%), β-pinene (10.5%), α-longipinene (6.5%), δ-3-carene (6.2%), cyperene (5.4%) and β-phellandrene (5.2%). The antibacterial activity of the essential oil was evaluated against Gram-positive (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212) and Gram-negative (Escherichia coli ATCC 25992, Klebsiella pneumoniae ATCC 23357, Pseudomonas aeruginosa ATCC 27853) bacteria, using the disc diffusion agar method. The results showed a broad spectrum of activity with minimal inhibitory concentration (MIC) values ranging from 10 to150 μg/mL.

Improvement of a P450-Based Recombinant Escherichia coli Whole-Cell System for the Production of Oxygenated Sesquiterpene Derivatives

“…To date, transformations of (+)-α-longipinene, (−)-isolongifolene, and α-humulene have received remarkable attention from researchers because they are major constituents of plant essential oils, which have interesting biological properties. (+)-α-Longipinene is one of the major components of essential oils from many herbs and plants, such as Cedrus atlantica and Monticalia andicola with antioxidant and antibacterial activities. , Biotransformation of (+)-α-longipinene by Aspergillus niger was performed to investigate its derivatives . So far, 12-hydroxy-α-longipinene has been found in the heartwood of Juniperus chinensis Linn.…”

Determination of Terpene Profiles in Potential Superfruits

“…Information about health-enhancing properties of these compounds can be found in the published literature. [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48] Although α-phellandrene and β-myrcene were found in all the investigated fruits, the highest content of these compounds was measured in cherry silver berry fruits. The two previously mentioned terpenes have proven antioxidant properties.…”

“…All the of the previously mentioned terpenes display antioxidant properties. Additionally, β-pinene has antimicrobial, antibacterial, and anticancer properties, [36][37][38][39] while limonene is characterized by antimicrobial, antidiabetic, and antifungal activities. [40][41][42][43][44] On the other hand, ρ-cymene displays antibacterial, antinociceptive, and anti-inflammatory [45][46][47][48] properties.…”

Essential Oil Composition and Antimicrobial Activity of Aerial Parts and Ripe Fruits of Echinophora spinosa (Apiaceae) from Italy

“…The essential oils of E. spinosa flowering aerial parts and ripe fruits did not inhibit the growth of either the Gram-negative bacteria, Bacteroides fragilis and Escherichia coli, or the two bifidobacteria and lactobacilli tested, but exhibited a better antimicrobial activity against the Gram-positive bacteria Clostridium difficile, C. perfringens, Enterococcus faecalis, and Peptostreptococcus anaerobius, with MIC values ranging from 0.25 to 2.25%, v/v, for the aerial parts oil, and from 0.13 to 2.25%, v/v, for the ripe fruits oil. The oils also inhibited the growth of Candida albicans, with a MIC value of 0.50%, v/v ( Table 2) .With regard to the constituents of the essential oils, β-phellandrene and p-cymene, the major constituents of the oils of the flowering aerial parts and ripe fruits respectively, and also α-pinene, β-pinene and α-phellandrene are endowed with antimicrobial properties [10][11][12][13][14][15]. For this reason it could be hypothesized that the antimicrobial effect of the tested essential oils may be ascribed in part, but not exclusively, to the presence of appreciable amounts of p-cymene, α-pinene, and βphellandrene (only aerial parts); however, the contribution of other minor constituents cannot be completely excluded [16].…”