Comparison of liquid–liquid extraction with headspace methods for the characterization of volatile fractions of commercial hydrolats from typically Mediterranean species

Paolini, Julien; Leandri, Christelle; Desjobert, Jean‐Marie; Barboni, Toussaint; Costa, Jean

doi:10.1016/j.chroma.2008.04.021

Cited by 64 publications

(39 citation statements)

References 34 publications

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“…Despite this low level of active principles, hydrosols have some interesting pharmacological and biological activities that make them useful for the food and cosmetic industry [10,15]. In addition, hydrolates also find application in agriculture to fertilize the soil and against fungi, mildew, and insects [6]. But, there is less information in these areas.…”

Section: Introductionmentioning

confidence: 99%

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Insecticidal effect of Mentha pulegium L. and Mentha suaveolens Ehrh. hydrosols against a pest of citrus, Toxoptera aurantii (Aphididae)

et al. 2015

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Essential oils proved their efficiency as natural insecticides to fight many pests of stored products and crops whereas the hydrosols have not been evaluated yet. The objective of this work is to assess the insecticidal effect of hydrosols extracted from Mentha suaveolens Ehrh. and Mentha pulegium L. toward an insect pest of citrus, Toxoptera aurantii (Homoptera, Aphididae). The extraction of hydrosols was carried out by hydro-distillation using Clevenger apparatus and then the chemical composition was identified by gas chromatography coupled with mass spectrometry. The chemical composition of two hydrosols revealed the abundance of hydrophilic and oxygenated compounds as piperitenone oxide and carvacrol. Different concentrations of each hydrosol were separately diluted in distilled water and applied topically to aphids. The results of this investigation have shown a high insecticidal effect, and the M. suaveolens hydrosol is more effective against citrus pests than that of M. pulegium L. Consequently, these natural compounds can be used in the management of aphids on citrus.

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Section: Introductionmentioning

confidence: 99%

“…Moreover, the chemical composition of hydrosols was a subject for only a few research studies [6][7][8][9][10][11][12]. The hydrosols are nearly free of irritating components such as the terpene hydrocarbons [10].…”

Section: Introductionmentioning

confidence: 99%

Insecticidal effect of Mentha pulegium L. and Mentha suaveolens Ehrh. hydrosols against a pest of citrus, Toxoptera aurantii (Aphididae)

et al. 2015

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“…The chemical composition of hydrosols of aromatic herbs produced in the same extraction process of EOs is not commonly studied. Their chemical analysis is the subject of only a limited number of publications (34,(59)(60)(61)(62). However, to the best of our knowledge, the chemical composition of T. capitata hydrosol has not been reported until now.…”

Section: Discussionmentioning

confidence: 99%

Hydrosol of Thymbra capitata Is a Highly Efficient Biocide against Salmonella enterica Serovar Typhimurium Biofilms

Karampoula

Giaouris

Deschamps

et al. 2016

Appl Environ Microbiol

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Salmonella is recognized as one of the most significant enteric foodborne bacterial pathogens. In recent years, the resistance of pathogens to biocides and other environmental stresses, especially when they are embedded in biofilm structures, has led to the search for and development of novel antimicrobial strategies capable of displaying both high efficiency and safety. In this direction, the aims of the present work were to evaluate the antimicrobial activity of hydrosol of the Mediterranean spice Thymbra capitata against both planktonic and biofilm cells of Salmonella enterica serovar Typhimurium and to compare its action with that of benzalkonium chloride (BC), a commonly used industrial biocide. In order to achieve this, the disinfectant activity following 6-min treatments was comparatively evaluated for both disinfectants by calculating the concentrations needed to achieve the same log reductions against both types of cells. Their bactericidal effect against biofilm cells was also comparatively determined by in situ and real-time visualization of cell inactivation through the use of time-lapse confocal laser scanning microscopy (CLSM). Interestingly, results revealed that hydrosol was almost equally effective against biofilms and planktonic cells, whereas a 200-times-higher concentration of BC was needed to achieve the same effect against biofilm compared to planktonic cells. Similarly, time-lapse CLSM revealed the significant advantage of the hydrosol to easily penetrate within the biofilm structure and quickly kill the cells, despite the three-dimensional (3D) structure of Salmonella biofilm. IMPORTANCEThe results of this paper highlight the significant antimicrobial action of a natural compound, hydrosol of Thymbra capitata, against both planktonic and biofilm cells of a common foodborne pathogen. Hydrosol has numerous advantages as a disinfectant of food-contact surfaces. It is an aqueous solution which can easily be rinsed out from surfaces, it does not have the strong smell of the essential oil (EO) and it is a byproduct of the EO distillation procedure without any industrial application until now. Consequently, hydrosol obviously could be of great value to combat biofilms and thus to improve product safety not only for the food industries but probably also for many other industries which experience biofilm-related problems.

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“…Numerous SPME methods have been developed in food chemistry for the analysis of aroma (Sides et al 2000;Kataoka et al 2000;Coleman and Dube 2005) and spices (Perez et al 2007). HS-SPME is also suitable for the analysis of essential oils (Kovacevic and Kac 2001;Paolini et al 2008). It has also been applied to volatile organic sulfur aroma compounds in black-and-white truffle (Pelusio et al 1995), and in beer (Xiao et al 2006).…”

Section: Figmentioning

confidence: 99%

The Modern Art of Identification of Natural Substances in Whole Plants

Chaimbault

2014

Recent Advances in Redox Active Plant and Microbial Products

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Comparison of liquid–liquid extraction with headspace methods for the characterization of volatile fractions of commercial hydrolats from typically Mediterranean species

Cited by 64 publications

References 34 publications

Insecticidal effect of Mentha pulegium L. and Mentha suaveolens Ehrh. hydrosols against a pest of citrus, Toxoptera aurantii (Aphididae)

Insecticidal effect of Mentha pulegium L. and Mentha suaveolens Ehrh. hydrosols against a pest of citrus, Toxoptera aurantii (Aphididae)

Hydrosol of Thymbra capitata Is a Highly Efficient Biocide against Salmonella enterica Serovar Typhimurium Biofilms

The Modern Art of Identification of Natural Substances in Whole Plants

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