Food Science and Technology

Getting up early on a Saturday morning to do physical labor is not necessarily every person’s idea of fun, especially when your bed is beckoning you to roll over for just five more minutes. However, that is exactly what a group of UGA Griffin students, along with faculty and staff, did on October 16 as they took part in the annual City of Griffin’s Stream Cleanup.

The Annual Stream Cleanup is a long-standing event that brings together citizens of Griffin-Spalding County to cleanup area streams and waterways. Volunteers remove trash and debris from their assigned stream in efforts to make their county a better and cleaner place.

“I think we were one of the largest groups who signed up to volunteer,” said Melissa Slaughter, a Center for Food Safety employee on the UGA Griffin campus. “I got involved because I used to help out when I was with 4-H and wanted to get the Griffin campus involved. It is a great way to give back to the community.”

The University of Georgia Department of Food Science and Technology’s Kevin Mis Solval and his team of researchers have secured a nearly half-million dollar grant from the U.S. Department of Agriculture's National Institute of Food and Agriculture (NIFA) to aid in creating safe food ingredients from cannonball jellyfish.

Harvested on the southeast coast of the U.S., cannonball jellyfish, commonly called jellyballs, have become a prominent catch for fisheries located within the region, and a way for shrimpers to diversify their catch during the off-season for shrimp. But history has shown that there has never been a domestically sustainable market for jellyfish food products.

“Large amounts of jellyfish are harvested on the coast of Georgia,” said Mis Solval, a food process engineer specializing in developing novel food ingredients in the College of Agricultural and Environmental Sciences. “But what is harvested is sold almost entirely to Asian markets. A big challenge in creating a more domestic industry will be building the demand by creating a product that people can use in their everyday lives.”

University of Georgia food science graduate student Ikechukwu “Ike” Oguadinma, 27, has been awarded the Food Safety Auditing Scholarship from the Food Marketing Institute Foundation in partnership with the Safe Quality Food Institute.

Oguadinma is one of 15 students who received the award at the SQF International Conference held last October in San Antonio, Texas. Each student received a $3,000 scholarship and an all-expense-paid trip to attend the conference with more than 850 food safety professionals.

A native of Nigeria, Oguadinma came to the U.S. to study food science after earning an undergraduate degree in biochemistry. He selected UGA after researching leading food science teaching and research programs in the U.S.

“I discovered that UGA has one of the best programs in food science in the country, boasting of esteemed food-safety researchers such as (Distinguished Research Professor) Dr. (Larry) Beuchat and (Regents Professor) Dr. (Michael) Doyle. These are very remarkable people and I knew to work with them and current outstanding faculty in the UGA food science department would teach me a lot and enable me to grow in my career,” he said.

In December of 1976, Sue Ellen McCullough took a job at the University of Georgia Griffin campus — then known as the Georgia Experiment Station — on the advice of a neighbor. On March 29 she retired from UGA-Griffin, taking with her a trove of memories and experiences.

“Dr. Wayne Bough was a faculty member and he was also my neighbor,” said McCullough, a native of Griffin. “We talked about me coming to work for him and he told me to ask my husband if I could work with him for about four months.”

The “temp” job turned into a nearly 40-year career with UGA’s Department of Food Science and Technology.

McCullough had worked at the local hospital and for Southern Bell, but she had no idea what to expect working in a laboratory at UGA. Bough was working on a grant project funded by UGA Marine Extension and the Georgia Sea Grant program, so McCullough’s first experiences were a little fishy.

“I was working with shrimp shells,” she remembers. “I had to dry them up in the shop in a big huge oven. When the men who worked in the shop saw me coming, they weren’t happy, because it did not smell good at all.”

When Bough left Griffin to accept a position with UGA Marine Extension in Brunswick, Georgia, McCullough went to work with UGA food scientist Kell Heaton. For the next six years, she helped him on various projects like canning peaches and peppers and working with other commodities, like pecans.

The 2018 Young Scholars Program kicked off on Monday, June 4^th at the University of Georgia Griffin Campus with 20 students participating in the six-week internship program. High school students from the region were selected from a pool of 86 applicants to participate in YSP where they will spend the summer working alongside world-renowned research scientists at UGA Griffin.

This year we have eight returning young scholars: Austin Duncan, Tamara English, Mary Grace Johnson, Maddox Jordan, Sheilendria Rawls, Jolie Ryff, Martha Sikora and Sarah Smyly. Joining YSP for the first time are: William Anong, Samuel Cross, Joshua Duffey, Taaseen Khan, Yuheon Lee, Lauren Moyer, Meghan Rogers, Emily Shi, Melanie Wagner, Robert “Lee” Wall, Dean Watson and Caroline Zhang. The students will spend Monday through Thursday working with their mentors and on Fridays they will have exploratory site visits to various areas on campus and work-shops from insightful presenters about college/life skills.

Daniel Mwalwayo has spent most of his professional career working to ensure a safe food supply in his home country of Malawi.

This spring, he’s spending three months focused on that goal while training at the University of Georgia through the U.S. Department of Agriculture’s Norman E. Borlaug International Agricultural Science and Technology Fellowship Program. The program, which is administered at UGA by the College of Agricultural and Environmental Sciences Office of Global Programs, promotes food security and economic growth by providing training and collaborative research opportunities to researchers and policymakers from developing or middle-income countries.

After nearly a decade working for the national food inspection program in Malawi, Mwalwayo wanted to study how to minimize aflatoxin in processed peanuts, a problem he sees firsthand at home. The Borlaug program matched him with Koushik Adhikari, a UGA food science professor who is an expert in sensory analysis and is working with Mwalwayo on how to survey consumers on peanut consumption and aflatoxin-related issues. Mwalwayo also spent time in the lab of Jia-Sheng Wang, the head of the Environmental Health Science Department at UGA, to learn more about aflatoxin testing techniques.

Last summer, seven seniors from Pike County High School (PCHS) in Zebulon, Georgia, with an aptitude for science made a commitment to work alongside University of Georgia Griffin campus scientists three days a week for the entire school year. This month, they will complete their yearlong partnership.

The students, Courtney Bagwell, Dylan Blohm, Abigail Chasteen, Nikki Dodson, Megan Pitts, Taylor Thomas and Talisa Watts, are the first group to take part in the off-campus internship. 

"The beauty and the flexibility of the (Pike County STEM) Academy is that we have a lot of standards, but we can pick and choose the ones that fit with science and math, and then add in the technology and the engineering through agriculture," said Greg Waits, the program's coordinator and the agriculture education teacher at the high school. 

Students are selected for the program based on their test scores in math and science. Then they take advanced classes in science, technology, engineering and math (STEM) areas during their freshman, sophomore and junior years before participating in the off-campus experience at UGA-Griffin. 

Formally, the students earn Advanced Placement science credits for participating. They also gain a wealth of information and personal experience. 

For millennia, farmers used compost to return nutrients to depleted soil. Now researchers are searching for a way composting can help battle aflatoxin.

Ghana native Esther Yeboah Akoto, who is currently pursuing her master’s degree in food science and technology at the University of Georgia, is working to help farmers diminish aflatoxin contamination in their soil by composting field waste.

“We know that composting has been around for a very long time. It’s a technique that growers have used for thousands of years,” said Akoto, who is conducting her research in conjunction with U.S. Feed the Future's Peanut Mycotoxin and Innovation Lab at the UGA College of Agricultural and Environmental Sciences.

“More recently, we know about aflatoxin and its effect on health. Could composting provide a way to remove aflatoxin-contaminated produce from the food supply?”

Researchers around the world are working to minimize naturally occurring molds that can grow on peanuts, maize and other crops. Those molds diminish the quality of peanut crops and generate mycotoxins such as aflatoxin, a dangerous compound that can cause physical and mental stunting in children, cause cancer and, in high doses, even kill. Obviously, the most effective intervention is to minimize mold growth in the field and in storage, but farmers may never completely get rid of something as ubiquitous as mold.

In a recent study funded by the U.S. Food and Drug Administration, University of Georgia researchers found that produce containing bacteria are likely to contaminate other produce items through the continued use of knives or graters — the bacteria latches onto the utensils commonly found in consumers’ homes and spreads to the next item. Unfortunately, many consumers are unaware that utensils and other surfaces at home can contribute to the spread of bacteria, said the study’s lead author Marilyn Erickson, an associate professor in the College of Agricultural and Environmental Sciences’ department of food science and technology.

“Just knowing that utensils may lead to cross-contamination is important,” Erickson said. “With that knowledge, consumers are then more likely to make sure they wash them in between uses.”

Erickson has been researching produce for the past 10 years. Her past work has mainly focused on the fate of bacteria on produce when it’s introduced to plants in the field during farming.

In 2013, she was co-author on a study looking at the transfer of norovirus and hepatitis A between produce and common kitchen utensils — finding that cutting and grating increased the number of contaminated produce items when that utensil had first been used to process a contaminated item.

A University of Georgia food scientist is turning to a logical source for input on which foods consumers like and which they don’t like. His research involves recruiting people from all walks of life to come into his laboratory in Griffin, Georgia, and taste food. Since joining the UGA College of Agricultural and Environmental Sciences a year ago, sensory scientist Koushik Adhikari has led consumer panels on roasted peanuts, Vidalia onions, steak and dog food. (No, the recruits didn’t actually taste the dog food. Based on the dog food’s appearance, they rated the likelihood they would buy it for their pets.)

“Generally, people are fearful of what they didn’t grow up eating,” said Adhikari. “They may dislike a food for a specific reason. I don’t like ice cream because I worked for an ice cream company for several years.”

The field of sensory science is all about data, he said. After asking 100 consumers to taste six samples, Adhikari and his team generate a lot of data that, after analyzed, gives food companies a plethora of information on how consumers will accept, or reject, their product.

“Most of the companies we work with just want the data because they have their own statisticians,” he said. “Then other companies want us to analyze the data for them. It can go both ways.”