Effect of Drying Temperature and Air Velocity on the Essential Oil Content of <i>Mentha aquatica</i> L.

Karami, Hamed; Rasekh, Mansour; Darvishi, Yousef; Khaledi, Rozhin

doi:10.1080/0972060x.2017.1371647

Cited by 21 publications

(18 citation statements)

References 15 publications

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“…Schematic diagram of used hybrid dryer: 1—air collector, 2—electric heater, 3—photovoltaic cell, 4—storage batteries, 5—dryer chamber, 6—fan, 7—control unit (Karami et al, )…”

Section: Methodsmentioning

confidence: 99%

“…Sun drying is limited because of some reasons such as low temperature, debris, rain, and insect infestation (Mirzaee, Rafiee, & Keyhani, 2010;Shafiur Rahman, 2007). By applying industrial methods, the dried vegetables retain their original color and do not undergo any undesirable variations in quality and chemical properties (Karami, Rasekh, Darvishi, & Khaledi, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Schematic diagram of used hybrid dryer: 1-air collector, 2-electric heater, 3-photovoltaic cell, 4-storage batteries, 5-dryer chamber, 6-fan, 7-control unit(Karami et al, 2017) equations, the particles which want to find the optimal solution are moved around the search space area. Particles movements are guided by their own best position (P best ) as well as the entire particles global best position ( g best ).…”

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confidence: 99%

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Using PSO and GWO techniques for prediction some drying properties of tarragon (Artemisia dracunculus L.)

Karami

Kaveh

Mirzaee‐Ghaleh

et al. 2018

J Food Process Engineering

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In this article, the effects of air temperature and velocity on drying characteristics of tarragon (Artemisia dracunculus L.) were investigated. The experiments were done at four temperatures of 40, 50, 60, and 70 °C and three air velocities of 1, 1.5, and 2 m/s. According to the results, the drying term of tarragon reduced significantly with increasing drying air temperature. The values of effective moisture diffusivity (Deff) were ranged between 1.34 × 10−10 and 2.74 × 10−10 m2/s. Also, by increasing drying air temperature the values of specific energy consumption (SEC) were decreased. The values of SEC were between 20.50 and 66.90 MJ/kg. Also Deff and SEC values were modeled by particle swarm optimizer (PSO) and gray wolf optimizer (GWO) algorithms. Drying air velocity and air temperature were considered as input parameters for the models. Based on three statistical parameters includes R2, MSE, and MAE for predicting Deff and SEC, GWO performance was better than the PSO. Practical applications The purpose of drying crops is decreasing of moisture content for providing secure storage and significant influence on the quality of dried crops. In this research, the effective moisture diffusivity (Deff) and specific energy consumption (SEC) values were modeled by PSO and GWO algorithms. The procedure can be applied in postharvest processing of medicinal plants.

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“…Schematic diagram of used hybrid dryer: 1—air collector, 2—electric heater, 3—photovoltaic cell, 4—storage batteries, 5—dryer chamber, 6—fan, 7—control unit (Karami et al, )…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Using PSO and GWO techniques for prediction some drying properties of tarragon (Artemisia dracunculus L.)

Karami

Kaveh

Mirzaee‐Ghaleh

et al. 2018

J Food Process Engineering

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“…Every 100 g of dried thyme matters was 1,000 ml distilled water using a Clevenger-type at 100 C, and the mixture was boiled for 2 hr with three replications in each case. The value of oil was estimated in a calibrated tube after an extract from the distilling unit without any addition of solvent, and the essential oil extracted was saved at 4-8 C until analysis (Karami et al, 2017).…”

Section: Essential Oil Isolationmentioning

confidence: 99%

“…Piper umbellatum L. leaves (do Nascimento Silveira Dorneles et al, 2019), pennyroyal (Kaveh et al, 2020), Mentha aquatica L. (Karami et al, 2017), Artemisia dracunculus L. (Karami, Kaveh, Mirzaee-Ghaleh, & Taghinezhad, 2018), thyme (Sarimeseli et al, 2014), rosemary (Arslan & Musa, 2008), A. dracunculus L. (Karami & Rasekh, 2018), and mint (Ozbek & Dadali, 2007).…”

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confidence: 99%

Assessment of kinetics, effective moisture diffusivity, specific energy consumption, and percentage of thyme oil extracted in a hybrid solar‐electric dryer

Karami

Tahvilian

2020

J Food Process Engineering

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This research deals with the analysis process of thyme in a hybrid (solar‐electric) dryer. The drying process was administered using three air velocities of 1, 1.5, and 2 m/s and four temperatures of 40, 50, 60, 70°C. The drying rate developed with the increase in temperature and air velocity, therefore decreased the drying time. Ten mathematical models were applied to predict the drying kinetics of thyme. Consequently, the best model to describe the drying kinetics of thyme was Midilli model. The values activation energy and effective moisture diffusivity were ranged between 10.9 to 16.33 kJ/mol and 2.172 × 10–10 to 1.23 × 10–10 m2/s, respectively. The oil yield was significantly affected by drying situations. The essential oil of the leaves was determined by hydrodistillation. So, the highest essential oil amount equal to 2.4 CC (vol/wt) was obtained at temperature of 40°C and air velocity of 1.5 m/s.Practical ApplicationsDrying is the most significant process to maintain agricultural crops. The purpose of drying crops is the decrease of the moisture content to a level that provides secure storage over an extended term, and significant influence on the quality of dried crops. In this research, drying kinetics of Thyme at different air velocity and air temperatures in hybrid dryer were studied. Moreover, simplistic models for the simulation of the drying process were offered. Consequently, the aim of this work was to Introducing a new hybrid dryer for herbal plants, to decrease volatile loss or degradation of essential oil extracted from Thyme. It is application in medicinal plants post‐harvest technology.

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Effect of air temperature and velocity on drying kinetics and essential oil composition of Piper umbellatum L. leaves

Dorneles

Goneli

Cardoso

et al. 2019

Industrial Crops and Products

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Effect of Drying Temperature and Air Velocity on the Essential Oil Content of Mentha aquatica L.

Cited by 21 publications

References 15 publications

Using PSO and GWO techniques for prediction some drying properties of tarragon (Artemisia dracunculus L.)

Using PSO and GWO techniques for prediction some drying properties of tarragon (Artemisia dracunculus L.)

Assessment of kinetics, effective moisture diffusivity, specific energy consumption, and percentage of thyme oil extracted in a hybrid solar‐electric dryer

Effect of air temperature and velocity on drying kinetics and essential oil composition of Piper umbellatum L. leaves

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