Making Food Safer

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In a chemical engineering laboratory in the heart of Fenn Hall, a team of mathematics and engineering students and faculty begin an expirement that could enhance food safety. 

As one person counts down on a stop watch to zero, the team springs into action. As the lettuce drops into a sanitizer bath, red leaf lettuce, contaminated with bacteria, is added, and various samples of the solution are taken to test pH levels, chlorine content and other values. The lettuce is mixed and washed quickly and then removed so more samples can be taken, as the next batch of iceberg hits the conveyor belt.

The elaborate operation is a key component of a groundbreaking research project that is designed to change the way we ensure our food is safe to eat.

The Centers for Disease Control and Prevention estimates that each year food-borne diseases lead to over 128,000 hospitalizations and roughly 3,000 deaths. Many of these illnesses can be traced to the presence of pathogens such as E. coli, Salmonella, and Listeria in fresh produce. Although interventional practices, including highly engineered and monitored washing systems, have been developed to limit public exposure to these pathogens, mortality and illness rates remain stubbornly high.

A multi-disciplinary CSU team has been awarded a three-year grant from the U.S. Department of Agriculture to address this significant public health concern. The team is developing new mathematical models designed to better assess how these pathogens spread through the food supply, and ultimately create better controls to reduce contamination.

“Ironically, the produce washing process has been identified as one of the key points of pathogen transfer in the food supply chain as contaminated produce mixes with uncontaminated food and pathogens ‘escape’ without being completely removed from all items,” says Partha Srinivasan, associate professor of mathematics and principal investigator on the project. “Our team is analyzing the chemical process to better understand how pathogen transfer occurs, while also creating better predictive models for how the entire process impacts food safety.”

Previous models designed to assess how this contamination happens have only taken a “snapshot in time” instead of modeling the entire wash system and all of its inputs, including food intake and outtake, material handling, sanitization and rinsing. This has made predictive analysis difficult at best. 

The CSU team, which also includes Dan Munther, associate professor of mathematics, and Chandra Kothapalli, associate professor of chemical engineering, has addressed this by creating a fully operational produce washing system in a laboratory environment that can be controlled, tested and modified based on experimental data collected.

“Currently, we are testing whether or not pathogens present on the red leaf lettuce transfer to the ‘clean’ iceberg lettuce during sanitization,” Dr. Kothapalli adds. “We are also assessing whether changes in certain values, such as the chlorine levels of the sanitization solution, impact pathogen transfer. The data collected will enable us to develop a predictive algorithm for pathogen cross-contamination and chemical analysis of sanitizer performance.”  

The team received funding from the Center for Produce Safety and is working with several produce companies to analyze data collected from large, commercial washing systems so they can compare this analysis with laboratory results. 

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According to the College & University Food Bank Alliance, 36 percent of college students experience food insecurity while nine percent are homeless.

Read On

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Drew Anderson (BBA ’09) turned his love for homemade sauerkraut into Cleveland Kraut, sold in 3,500+ stores with inventive flavors and national acclaim — proving fermentation can be bold and local.

Read On

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Charlotte Sine graduated from Fenn College in 1958 with a bachelor’s degree in English. That degree served her well during a 46-year career in various editorial positions at Meister Media Worldwide.

Read On

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Read On

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Read On

Sands Shares Plans for Year Two

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Read On

LCC Joins Enhanced Transfer Partnership

Cleveland State University has created a series of innovative partnerships with local community colleges which are designed to create a comprehensive, assistive pathway for students to make the easy transition to Cleveland State.

Read On

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Read On

Research Highlights

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Read On

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Read On

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Read On

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Read On

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Read On

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Read On

Increasing Degree Attainment

CSU is part of a statewide partnership, led by College Now Greater Cleveland, selected to join Degrees When Due. This national initiative seeks to assist students who have some college credits to complete their degrees.

Read On

New Leaders Join Team CSU

Three highly regarded, results-driven individuals have joined the University’s leadership team.

Read On

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In early 2019, Cleveland became the fourth Say Yes to Education chapter in the nation, thereby making college free for virtually all Cleveland Metropolitan School District (CMSD) graduates.

Read On

Distinguished Faculty and Staff Awards

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Read On

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Alumna Virginia McFrederick loved libraries. And because she included CSU in her estate plan, the Michael Schwartz Library is now home to the Virginia McFrederick Group Study Center.

Read On

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Gina Vernaci had spent nearly four decades as a theater manager and administrator and was in the middle of a highly successful tenure at Cleveland’s Playhouse Square when a lunchtime walk changed her educational and professional path.

Read On

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Alumnus sees medicine as a vehicle for improving the community

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Read On

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According to the College & University Food Bank Alliance, 36 percent of college students experience food insecurity while nine percent are homeless.

Read On

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Sam McNulty (BA ’97) launched his hospitality career at CSU and now runs top Ohio City bars and Market Garden Brewery. He’s also redeveloping Duck Island, connecting Cleveland neighborhoods.

Read On

Love Letter to Cleveland

A 58‑ft mural by Gary and Laura Dumm now graces CSU’s Michael Schwartz Library, celebrating local landmarks and history, funded by community and tied to Cleveland Memory Project.

Read On

Increasing Degree Attainment

CSU is part of a statewide partnership, led by College Now Greater Cleveland, selected to join Degrees When Due. This national initiative seeks to assist students who have some college credits to complete their degrees.

Read On

LCC Joins Enhanced Transfer Partnership

Cleveland State University has created a series of innovative partnerships with local community colleges which are designed to create a comprehensive, assistive pathway for students to make the easy transition to Cleveland State.

Read On

Distinguished Faculty and Staff Awards

CSU’s faculty and staff are second to none! Each year, Distinguished Faculty and Staff Awards honor individuals who bring distinction to the University and support student success through their day-to-day efforts.

Read On

Getting Real About Property Management

Cleveland State University will expand innovative education, research and experiential learning in real estate and property management, thanks to a transformative $1.2 million gift from the NRP Group and the Millennia Companies.

Read On

From Fixing Cars to Fixing Bodies

Alumnus sees medicine as a vehicle for improving the community

Read On

Class Notes – Winter 2020

Read On

Alumna Finds Success as Chef, Restaurateur

From Ukrainian immigrant to celebrated chef, Natasha Pogrebinsky (BA ’05) turned passion into purpose — opening acclaimed restaurants and sharing her heritage through food and national TV features.

Read On

Global Agriculture Grows the World

Charlotte Sine graduated from Fenn College in 1958 with a bachelor’s degree in English. That degree served her well during a 46-year career in various editorial positions at Meister Media Worldwide.

Read On

CSU Among Nation’s Best

Cleveland State has once again been selected by The Wall Street Journal as one of the best universities in the United States.

Read On

Sands Shares Plans for Year Two

Seven new initiatives, including a Forward Together Innovation Challenge, were announced as part of President Harlan Sands’ first State of the University address.

Read On

Parker Hannifin Students Live and Learn

In early 2019, Cleveland became the fourth Say Yes to Education chapter in the nation, thereby making college free for virtually all Cleveland Metropolitan School District (CMSD) graduates.

Read On

Research Highlights

CSU researchers tackle big challenges —f rom AI-driven fertility analysis and trauma-informed youth programs to brain aneurysm prevention using nanoparticles — fueling innovation across disciplines.

Read On

Creating Community Through the Arts

Gina Vernaci had spent nearly four decades as a theater manager and administrator and was in the middle of a highly successful tenure at Cleveland’s Playhouse Square when a lunchtime walk changed her educational and professional path.

Read On

Alumni Adventures

From behind-the-scenes visits to well-known (and little-known) Cleveland sites to world tours, the CSU Alumni Association’s calendar of events has something for everyone.

Read On

Making Great Kraut

Drew Anderson (BBA ’09) turned his love for homemade sauerkraut into Cleveland Kraut, sold in 3,500+ stores with inventive flavors and national acclaim — proving fermentation can be bold and local.

Read On

A Message from the President

President Harlan M. Sands marks his first year, spotlighting CSU’s student-centered achievements: Say Yes scholarships, new partnerships, global outreach, and seven strategic priorities forward together.

Read On

C|M|LAW Hall of Fame

The Cleveland-Marshall Law Hall of Fame was established in 2017 to honor alumni, faculty, staff, friends and community leaders who have contributed to the success and prestige of the law school.

Read On

New Leaders Join Team CSU

Three highly regarded, results-driven individuals have joined the University’s leadership team.

Read On

Pooling Their Knowledge

CSU partnered with the Seven Hills Recreation Center to improve sensory processing and socialization for children with special needs through a pediatric aquatic therapy program.

Read On

Leave a Legacy with Estate Plan

Alumna Virginia McFrederick loved libraries. And because she included CSU in her estate plan, the Michael Schwartz Library is now home to the Virginia McFrederick Group Study Center.

Read On

Distinguished Alumni Awards

CSU is Viking Strong with a worldwide network of 130,000-plus alumni. Each year, a select group who bring distinction to the University through their career achievements, service and engagement are honored with Distinguished Alumni Awards.

Read On

Homecoming Memories

A people-powered parade, golden apples, a harvest picnic, reunions, dedications, awards . . . Homecoming 2019 was packed with activities that brought alumni and their families back to campus.

Read On