Determination of the vapor pressure of Lippia gracilis Schum essential oil by thermogravimetric analysis

Oliveira, Carlos Henrique Rodrigues de; Cremasco, Marco Aurélio

doi:10.1016/j.tca.2013.11.023

Cited by 20 publications

(7 citation statements)

References 25 publications

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“…Most likely, this particular composition determines the two-recorded steps accompanied by mass-loss. The mass-loss steps recorded on TG/DTG/DTA curves for other plant essential oils were due to the evaporation processes, as was highlighted in previously published results 14,15,17,19 . Thermo-analytical curves for SHEOx-y samples are (Fig.…”

Section: Discussionsupporting

confidence: 64%

Chemical composition, antioxidant capacity, and thermal behavior of Satureja hortensis essential oil

Chambré

Moisă

Lupitu

et al. 2020

Sci Rep

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Saturejahortensis is one of the representative plants from the Lamiaceae family, and its essential oil has been used in various applicative fields, from the food industry to aromatherapy. The changes that occur in heated samples at different temperatures (160, 175, 190 ºC) over different periods (0.5 and 2.5 h) in Saturejahortensis essential oil composition and chemical properties were evaluated. The results showed that the major chemical composition constituents of the investigated essential oil are γ-terpinene + α-terpinolene and carvacrol + p-cymene and the thermal behavior is dependent on the content. This composition drastically changes through the heating of the samples and causes significant changes in thermal behavior. The present study demonstrated that the concentration of carvacrol in S.hortensis essential oil is increasing after heating treatment, and the sample heated at 190 ºC for 2.5 h contained more than 91% carvacrol. This simple treatment is a rapid way to obtain carvacrol from the essential oil that has high potential as a natural preservative suitable for the food industry and alternative and complementary medicine.

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Section: Discussionsupporting

confidence: 64%

Chemical composition, antioxidant capacity, and thermal behavior of Satureja hortensis essential oil

Chambré

Moisă

Lupitu

et al. 2020

Sci Rep

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“…The highest rate of EOCA degradation occurred at 120 °C. Overall, one simple stage of essential oil evaporation between 30 and 200 °C is reported in other studies. − Probably, the number of stages is related to the essential oil composition.…”

Section: Resultsmentioning

confidence: 64%

Antifungal Film Incorporated with Chenopodium ambrosioides L. Essential Oil for Postharvest Storage

Martins

Ferreira-Silva

Cruz

et al. 2022

ACS Food Sci. Technol.

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Fungi are responsible for the majority of postharvest diseases of fruits, which cause large postharvest losses. Active films are promising delivery systems for ingredients with bioactive properties, allowing for the improvement of food quality and safety. The present study aimed at producing essential oil of Chenopodium ambrosioides (EOCA), as well as developing active films incorporated with different concentrations of EOCA (0, 100, 200, 300, and 400 g kg–1). EOCA increased the films’ opacity, solubility, and extensibility while decreasing rigidity, resistance, and permeability to water vapor. Cellulose acetate provides a slight thermal stabilization of the EOCA. The active films were effective against the phytopathogens Fusarium oxysporum and Colletotrichum gloesporioides in the vapor phase. The active films containing EOCA were successfully obtained, and, according to the results, we can emphasize the potential application of the films developed as active food packaging, highlighting the postharvest preservation of fruits and vegetables.

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“…Briefly, the octanol–water partition and the air–water partition coefficients ( K aw ) of the solutes are introduced in a hypothetical two-dimensional diagram representing the environmental compartments, and the probable dispersion of the solute is determined by the relationship between K ow and K aw . The latter is directly calculated from water solubility data along with vapor pressures, which are available in the literature. − ,,,− …”

Section: Resultsmentioning

confidence: 99%

Octanol–Water Partition Coefficients and Aqueous Solubility Data of Monoterpenoids: Experimental, Modeling, and Environmental Distribution

Vilas-Boas

Costa

Coutinho

et al. 2022

Ind. Eng. Chem. Res.

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Terpenes and terpenoids encompass one of the most extensive and valuable classes of secondary metabolites. Their ten-carbon-containing oxygenated representatives, monoterpenoids, are the main components of plant essential oils, being widely exploited in the cosmetic, pharmaceutical, and food industrial areas. Due to its widespread use, it is crucial to investigate their environmental distribution. Thus, new water solubility data were obtained for six monoterpenoids ((1R)-(+)-camphor, (S)-(+)-carvone, eucalyptol, (1R)-(−)-fenchone, L-(−)-menthol, and (−)-menthone) at 298.2 and 313.2 K. Furthermore, octanol−water partition coefficients of 12 monoterpenoids (the six mentioned above plus carvacrol, (±)-β-citronellol, eugenol, geraniol, linalool, and thymol) were measured at 298.2 K. The COSMO-RS thermodynamic model and other more empirical approaches were evaluated for the description of the solubilities and partition coefficients, showing reliable predictions. Lastly, the distribution of the monoterpenoids in the different environmental compartments was assessed through an intuitive two-dimensional chemical space diagram based on the physicochemical equilibrium information reported.

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Determination of the vapor pressure of Lippia gracilis Schum essential oil by thermogravimetric analysis

Cited by 20 publications

References 25 publications

Chemical composition, antioxidant capacity, and thermal behavior of Satureja hortensis essential oil

Chemical composition, antioxidant capacity, and thermal behavior of Satureja hortensis essential oil

Antifungal Film Incorporated with Chenopodium ambrosioides L. Essential Oil for Postharvest Storage

Octanol–Water Partition Coefficients and Aqueous Solubility Data of Monoterpenoids: Experimental, Modeling, and Environmental Distribution

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