Perspectives of pulsed electric field application for larvae biomass drying

The perspectives of pulsed electric field (PEF) application for larvae biomass drying are considered. Drying process optimization was carried out using two-way analysis of variance in the range of applied specific energy input of from 0 up to 20 kJ/kg and drying temperature of from 50 up to 90°С. It was found out that application of pulsed electric field treatment allowed marked decreasing of larvae biomass drying time from 183 to 124 minutes for the samples treated with electric filed intensity of E = 2 kV/cm and specific energy of 20 kJ/kg. Based on the obtained experimental data the optimal drying and PEF treatment parameters for larvae biomass were determined for the ranges of drying temperature – 82–85℃ and specific energy input – 4.1–6.6 kJ/kg.

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Use of pulsed electric fields to induce breakage of glandular trichome cells in leaves of fresh patchouli (Pogostemon cablin Benth.): Specific energy input consumption

International Journal of Plant Biology ◽

10.4081/pb.2019.7443 ◽

2019 ◽

Vol 10 (1) ◽

Author(s):

Sukardi Sukardi ◽

Sudjito Soeparman ◽

Bambang Dwi Argo ◽

Yudy Surya Irawan

Keyword(s):

Electric Field ◽

Electric Fields ◽

Specific Energy ◽

Energy Input ◽

Glandular Trichome ◽

Specific Energy Input ◽

Variable Electric Field ◽

Pogostemon Cablin ◽

Cell Changes ◽

Electric Field Treatment

Research has been performed using a pulsed electric field (PEF) to damage plant cells to obtain bioactive compounds before extraction. However, research into the use of PEF to break down the glandular trichome (GT) cells of patchouli for essential oil extraction is still limited. The purpose of this study was to determine the specific energy input needed to break patchouli leaf GT cells by PEF treatment. Patchouli leaves were harvested at 7 months of age, then treated with PEF. GT cell changes were analyzed using scanning electron microscopy. The results show that treatment with variable frequencies caused GT cell wrinkling and treatments with a variable electric field caused GT cell rupture. Electric field treatment at E=133.33 V/cm and a PEF exposure time of 2 seconds or E=116.66 V/cm and 3 seconds of PEF exposure resulted in consistent rupture of GT cells. Energy consumption of 0.049 kJ/cm3 promoted GT cell wall shrinkage and consumption of 0.59 kJ/cm3 broke GT cell walls.

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Inactivation of Staphylococcus Aureus Using Pulsed Electric Field Treatment Under Treatment Time Variation

International Journal on Engineering Applications (IREA) ◽

10.15866/irea.v7i6.17840 ◽

2019 ◽

Vol 7 (6) ◽

pp. 197

Author(s):

Ramya Ramaswamy ◽

Raja Prabu Ramachandran ◽

V. Gowrisree

Keyword(s):

Staphylococcus Aureus ◽

Electric Field ◽

Time Variation ◽

Treatment Time ◽

Pulsed Electric Field ◽

Pulsed Electric Field Treatment ◽

Electric Field Treatment

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Trade-Off between Operating Time and Energy Consumption in Pulsed Electric Field Electrodialysis: A Comprehensive Simulation Study

Membranes ◽

10.3390/membranes11010043 ◽

2021 ◽

Vol 11 (1) ◽

pp. 43

Author(s):

Manuel César Martí-Calatayud ◽

Mario Sancho-Cirer Poczatek ◽

Valentín Pérez-Herranz

Keyword(s):

Energy Consumption ◽

Electric Field ◽

Simulation Study ◽

Specific Energy ◽

Operating Time ◽

Specific Energy Consumption ◽

Threshold Value ◽

Pulsed Electric Field ◽

Pulse Frequency ◽

Time And Energy

Electrodialysis (ED) has been recently introduced in a variety of processes where the recovery of valuable resources is needed; thus, enabling sustainable production routes for a circular economy. However, new applications of ED require optimized operating modes ensuring low energy consumptions. The application of pulsed electric field (PEF) electrodialysis has been demonstrated to be an effective option to modulate concentration polarization and reduce energy consumption in ED systems, but the savings in energy are usually attained by extending the operating time. In the present work, we conduct a comprehensive simulation study about the effects of PEF signal parameters on the time and energy consumption associated with ED processes. Ion transport of NaCl solutions through homogeneous cation-exchange membranes is simulated using a 1-D model solved by a finite-difference method. Increasing the pulse frequency up to a threshold value is effective in reducing the specific energy consumption, with threshold frequencies increasing with the applied current density. Varying the duty cycle causes opposed effects in the time and energy usage needed for a given ED operation. More interestingly, a new mode of PEF functions with the application of low values of current during the relaxation phases has been investigated. This novel PEF strategy has been demonstrated to simultaneously improve the time and the specific energy consumption of ED processes.

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The Electrode Modality Development in Pulsed Electric Field Treatment Facilitates Biocellular Mechanism Study and Improves Cancer Ablation Efficacy

Journal of Healthcare Engineering ◽

10.1155/2017/3624613 ◽

2017 ◽

Vol 2017 ◽

pp. 1-10 ◽

Cited By ~ 2

Author(s):

Chao Cen ◽

Xinhua Chen

Keyword(s):

Electric Field ◽

Laser Scanning ◽

Specific Treatment ◽

Pulsed Electric Field ◽

Laser Scanning Microscopy ◽

Confocal Laser ◽

Invasive Technique ◽

Bipolar Electrode ◽

Pulsed Electric Field Treatment ◽

Electric Field Treatment

Pulsed electric field treatment is now widely used in diverse biological and medical applications: gene delivery, electrochemotherapy, and cancer therapy. This minimally invasive technique has several advantages over traditional ablation techniques, such as nonthermal elimination and blood vessel spare effect. Different electrodes are subsequently developed for a specific treatment purpose. Here, we provide a systematic review of electrode modality development in pulsed electric field treatment. For electrodes invented for experiment in vitro, sheet electrode and electrode cuvette, electrodes with high-speed fluorescence imaging system, electrodes with patch-clamp, and electrodes with confocal laser scanning microscopy are introduced. For electrodes invented for experiment in vivo, monopolar electrodes, five-needle array electrodes, single-needle bipolar electrode, parallel plate electrodes, and suction electrode are introduced. The pulsed electric field provides a promising treatment for cancer.

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