A new kinetic model for the common juniper essenstial oil extraction by microwave hydrodistillation

Marković, Miljana; Milojević, Svetomir Ž.; Bošković‐Vragolović, Nevenka; Pavićević, Vladimir; Babincev, Ljiljana М.; Veljković, Vlada B.

doi:10.1016/j.cjche.2018.06.022

Cited by 16 publications

(8 citation statements)

References 19 publications

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“…In the batch desorption system, models describing the solubility of the essential oil from the surface and diffusing the essential oil within the materials were developed to explain the desorption kinetics of the extraction process. The pseudo-first model with nonlinear regression is widely used with high compatibility to explain the mechanism of the process in solid-liquid interaction [14,15,19,20].…”

Section: Kinetics Of Essential Oil Extractionmentioning

confidence: 99%

“…All three models described the experimental kinetic data of the distillation process well regardless of distillation apparatus type and its size, type of plant material, and operating conditions. Later attempts to further develop the phenomenological kinetic models adopts the three-stage mechanism that assumes three phases occurring simultaneously: washing, unhindered diffusion, and hindered diffusion [14,15]. Compared with well-known kinetic models, this kinetic model was considered a suitable one for the extraction of essential oil from juniper berries.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, pomelo peel essential oil was extracted by the steam distillation process which is considered a green method and can be used to improve the current industrial extraction processes. The experimental data on the extraction process was modeled according to Milojević et al [14,15]. In addition, other aspects of activation energy such as thermodynamics are also important in the process of extracting essential oils from pomelo peels.…”

Section: Introductionmentioning

confidence: 99%

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Central Composite Design, Kinetic Model, Thermodynamics, and Chemical Composition of Pomelo (Citrus Maxima (Burm.) Merr.) Essential Oil Extraction by Steam Distillation

et al. 2021

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Pomelo peel-derived essential oils have been gaining popularity due to greater demand for stress relief therapy or hair care therapy. In this study, we first performed optimization of parameters in the pomelo essential oil extraction process on a pilot scale to gain better insights for application in larger scale production. Then extraction kinetics, activation energy, thermodynamics, and essential oil quality during the extraction process were investigated during the steam distillation process. Three experimental conditions including material mass, steam flow rate, and extraction time were taken into consideration in response surface methodology (RSM) optimization. The optimal conditions were found as follows: sample weight of 422 g for one distillation batch, steam flow rate of 2.16 mL/min and extraction time of 106 min with the coefficient of determination R2 of 0.9812. The nonlinear kinetics demonstrated the compatibility of the kinetic model with simultaneous washing and unhindered diffusion with a washing rate constant of 0.1515 min−1 and a diffusion rate constant of 0.0236 min−1. The activation energy of the washing and diffusion process was 167.43 kJ.mol−1 and 96.25 kJ.mol−1, respectively. The thermodynamic value obtained at the ΔG° value was −35.02 kJ.mol−1. The quality of pomelo peel essential oil obtained by steam distillation was characterized by its high limonene content (96.996%), determined by GC-MS.

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Section: Kinetics Of Essential Oil Extractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Central Composite Design, Kinetic Model, Thermodynamics, and Chemical Composition of Pomelo (Citrus Maxima (Burm.) Merr.) Essential Oil Extraction by Steam Distillation

et al. 2021

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“…Herein, this paper investigates the influence of extraction temperatures (60–90°C) and reaction time (1–25 min) on the extraction of EPA. Kinetic models are developed based on first-order and second-order rate laws and Patricelli’s model [ 43 ]. Subsequently, the thermodynamic study of EPA extraction is implemented to determine Gibbs free energy, enthalpy, and entropy of the system.…”

Section: Introductionmentioning

confidence: 99%

Kinetic and thermodynamic studies of eicosapentaenoic acid extraction from Nannochloropsis oceanica using tetramethyl ammonium chloride and microwave irradiation

et al. 2022

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Microalgae have garnered widespread attention as a sustainable source of pharmaceuticals and nutraceuticals. As for extracting lipids from microalgae, the combination of microwave-assisted extraction (MAE) and ionic liquids (IL) is shown to be promising. However, such an undertaking usually requires a large consumption of expensive ILs. This study innovatively employs tetramethyl ammonium chloride ([TMAm][Cl]) as an additive in water medium to associate with microwave-assisted ionic liquid extraction (MAILE) in extracting lipids from Nannochloropsis oceanica (N. oceanica) microalgae. In extraction, knowledge of reaction kinetics is crucial since it provides the foundation for developing, controlling, and improving the processes of extraction. Herein, using MAILE, lipids are extracted from N. oceanica microalgae and transesterified to eicosapentaenoic acid (EPA). Mass transfer kinetics are, therefore, investigated using the first and second-order rate law and Patricelli’s model. In the development of models, the influence of temperature (60–90°C) and reaction time (1–25 min) on EPA extraction is empirically evaluated. From the thermodynamic study, the positive values of ΔS (+0.10 kJ mol-1K-1) and ΔH (+32.50 kJ mol-1) and the negative value of ΔG (-1.68 to -4.75 kJ mol-1) confirm that this process is endothermic in nature, irreversible and spontaneous. MAILE proves to be a promising approach for the extraction of high-quality EPAs. Due to its low cost, rapid operation, and environmental friendliness, it is seen to be suitable for both pharmaceutical and nutraceutical applications.

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“…The microwaveassisted hydrodistillation (MHD) is an advanced hydrodistillation method that utilizes water solvent for target component extraction, aided with microwave heating. Reports on the application of the MHD on extracting essential oils from numerous plant materials have also provided promising results [11][12].…”

Section: ■ Introductionmentioning

confidence: 99%

Microwave-Assisted Hydrodistillation of Clove (<i>Syzgium aromaticum</i>) Stem Oil: Optimization and Chemical Constituents Analysis

2021

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One of the extensively prosperous potential aromatic plants is the clove (Syzgium aromaticum). This is owing to all parts of this plant (bud, stem, and leaves) contain a decent amount of essential oils. The current study focuses on the use of microwave-assisted hydrodistillation (MHD) in extracting clove stem essential oils. This study aims to obtain the best possible combination of operating parameters for a high yield of clove stem oil using response surface methodology. The current study adopted a face-centered central composite design to optimize the MHD operational parameters, including the feed-to-solvent ratio, microwave power, and extraction time. The observed data from the experiments were fitted to a reduced quadratic polynomial equation. The three operational parameters were shown to significantly affect the extraction yield of the clove stem oil (p < 0.05), yet the statistical significance for the interaction between each parameter was considerably weak. Furthermore, the adjusted R2 value measured comparably to the corresponding R2 value with the difference below 0.2, implying a high correlation between experimental and model-predicted data. Thus, this result demonstrates the suitability of the model used in the experiment.

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A new kinetic model for the common juniper essenstial oil extraction by microwave hydrodistillation

Cited by 16 publications

References 19 publications

Central Composite Design, Kinetic Model, Thermodynamics, and Chemical Composition of Pomelo (Citrus Maxima (Burm.) Merr.) Essential Oil Extraction by Steam Distillation

Central Composite Design, Kinetic Model, Thermodynamics, and Chemical Composition of Pomelo (Citrus Maxima (Burm.) Merr.) Essential Oil Extraction by Steam Distillation

Kinetic and thermodynamic studies of eicosapentaenoic acid extraction from Nannochloropsis oceanica using tetramethyl ammonium chloride and microwave irradiation

Microwave-Assisted Hydrodistillation of Clove (<i>Syzgium aromaticum</i>) Stem Oil: Optimization and Chemical Constituents Analysis

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