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Predictive Simulation of Pulsed Electric Field Exposure Effects on Vegetable Tissues and Bacterial Suspensions

Submission Number: 141
Submission ID: 257
Submission UUID: 78dcfb06-0ba8-41b3-8390-843cc96bddb1
Submission URI: /form/project

Created: Wed, 03/02/2022 - 13:14
Completed: Wed, 03/02/2022 - 13:14
Changed: Tue, 04/18/2023 - 13:26

Remote IP address: 128.6.36.20
Submitted by: Galen Collier
Language: English

Is draft: No
Webform: Project
Predictive Simulation of Pulsed Electric Field Exposure Effects on Vegetable Tissues and Bacterial Suspensions
CAREERS
COMSOL_Spinach_EF Distribution.png
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Project Leader

Gary Thompson
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Project Personnel

Udi Zelzion
Danielle Green
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Project Information

As part of a team working on a USDA/NIFA funded project entitled, “Nonthermal Decontamination of Leafy Vegetable Food Products Using Nanosecond Pulsed Electric Field Exposures,” the Research Computing Facilitator (RCF) will help enable specific analytical work by performing COMSOL Multiphysics simulations of local electric field distributions, current densities, and Joule heating within leafy green vegetable tissue and bacterial suspensions between electrodes in order to predict threshold electric pulse exposures for thermal tissue damage. Matlab or Python scripts will be written for further analysis of the simulation data. Three-dimensional models of electrodes, custom exposure chambers, and tissues or cell suspensions will be constructed using a CAD software such as Solidworks and then imported into COMSOL. The RCF will take the lead on migrating this work to an HPC platform for production modeling. Computationally-intensive simulations will be run on the Rowan University Computing Cluster (RUCC).

The RCF student working on this project will interface with faculty, staff and other students to:
• Construct models that accurately simulate designed experimental conditions,
• Access, use, and retrieve data from RUCC,
• Create and test code to analyze data over the tested parametric spaces,
• Document the construction of simulations and written code, so that others can follow,
• Manage and organize all data within approved digital storage, and share all data with the faculty leader in appropriate file formats, and
• Assist in the interpretation, write-up, and publication of results.

In addition to potential academic publication(s) and conference presentation(s), milestone deliverables from this project will be shared publicly via posting to the project leader’s website.

Project Information Subsection

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Practical applications
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Rowan University
201 Mullica Hill Rd
Glassboro, New Jersey. 08028
CR-Rutgers
03/07/2022
Yes
Already behind3Start date is flexible
6 months
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03/09/2022
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Final Report

The project resulted in prediction of thermal deposition associated with Joule heating during pulsed electric field exposures of spinach leaf tissue. Agriculture and food safety benefits from the threshold treatment parameter values calculated, giving boundaries to pulsed electric field exposures applied for extraction, drying, decontamination, or electrotransfection of leafy green plant tissues
The results of this project also provide useful data points to the disciplines of bioelectricity and botany.
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Yes, one student developed skills for research computing.
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Yes, possible indirect benefits to society include food products that require less energy to process and are safer to consume.
The student learned about electrophysical properties of biological materials, how to construct finite element models of composite materials, and more advanced COMSOL modeling techniques. The student also realized and informed Rowan University of necessary licenses and updates needed to operate COMSOL on Rowan University’s Computing Cluster (RUCC).
Simulation results indicate negligible temperature rise within leaf tissue during pulsed electric field exposures with parameters being used for decontamination treatments. These results have been used as supporting information for a manuscript entitled, “Threshold Microsecond Pulsed Electric Field Exposures for Change in Spinach Quality,” currently undergoing peer review.