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Acta Biologica Hungarica
Authors: Erika-Beáta Kerekes, Anita Vidács, Julianna Jenei Török, Csilla Gömöri, Tamás Petkovits, Muthusamy Chandrasekaran, Shine Kadaikunnan, Naiyf S. Alharbi, Csaba Vágvölgyi, and Judit Krisch

References 1. Bakkali , F. , Averbeck , S. , Averbeck , D. , Idaomar , M. ( 2008 ) Biological effects of essential oils –a review . Food Chem. Toxicol. 46

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. Kalemba A. Kunicka 2003 Antibacterial and antifungal properties of essential oils Curr Med Chem 10 813

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Angelini, L.C., Carpanese, G., Cioni, P.L., Morelli, L., Macchia, M. & Flamini, G. (2003): Essential oils from Mediterranean Lamiaceae as weed germination inhibitors. J. Agric. Fd Chem. , 51

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Salvia fruticosa essential oils against human pathogenic fungi . J. agric. Fd Chem. , 46 , 1739–1745. Arsenakis M. Antifungal activities of Origanum vulgare subsp. hirtum

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Dobetsberger C, Buchbauer G: Actions of essential oils on the central nervous system: An updated review. Flavour Fragr. J. 26, 300–316 (2011) Buchbauer G. Actions of essential oils on the central nervous system: An updated review

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Abstract  

A capillary long neck glass sample holder is proposed for the determination of boiling temperatures of essential oils containing a majority component. Essential oils from Aniba dukei K. and Pimenta dioica L. containing linalool and eugenol, respectively, as major constituents were used after optimization of parameters such as scan rate, sample mass and starting temperature. Best performance in the determination of boiling temperatures was obtained with the proposed sample holder in comparison with commercial aluminum pans. Good agreement was obtained for the boiling temperature and enthalpy for the essential oil samples with the linalool and eugenol standards.

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The direct toxicity of four essential oils, Majorana hortensis Moench, Ros­marinus officinalis L., Mentha piperita L. and Lavandula officinalis Chaix, to adult females of the predacious mite Amblyseius swirskii Athias-Henriot were tested. Peppermint oil was the most toxic to females A. swiriskii while the French lavender oil was the least toxic to the pre­dator. All essential oils, at the two concentrations used, decreased the food consumption rate as well as egg laying. All four materials tested, at con­cen­tration 0.25% were considered to be safe for the predator since no mortalities had been recorded.

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Farag, D. S., Daw, Z. Y., Hewedi, F. M. & El-Baroly, M. F. (1989): Antimicrobial activity of some Egyptian spice essential oils. J. Fd Protect. , 52 , 665-667. Antimicrobial activity of some Egyptian spice essential oils

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Abstract  

The present study was aimed at determining the kinetics of evaporation and establishing vapor pressure curves for both single and multi-component systems by thermogravimetry (TG) and differential scanning calorimetry (DSC). Essential oils (e.g. lavender oil, orange oil, clove oil and eucalyptus oil, etc.) are typically multi-component systems consisting of various volatile pure components (e.g. linalyl acetate, limonene, cinnamaldehyde, etc.) which resemble single component systems. In this study linalyl acetate was taken as the calibration compound for TG. The vapor pressure curves for the pure substances were plotted using TG and vapor pressure plots for clove oil and eucalyptus oil were constructed using DSC. The thermodynamic and kinetic parameters of the pure compounds were compared to that of the multi-component systems to quantitatively and qualitatively measure the influence of different compounds on each other. The k-value from the vapor pressure data for linalyl acetate was calculated as 112006 Pa kg0.5mol0.5s-1 m-2 K-0.5. The vapor pressure values were used to determine the Antoine constants using the SPSS 10.0 software.

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citrus essential oils and their components: Detection using 1,1-diphenyl-2-picrylhydrazyl. J. agric. Fd Chem. , 48 , 4156–4161. Sawamura M. Radical scavenging activities of

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