Patterns Spring 2001 Article
 

 

 

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Gourmet Scientist Improves Food's Taste and Safety
 
Everyday, Brock Zentz develops methods to improve the taste and safety of people's food. Mr. Zentz is not a chef; he works as a food technologist for Quest International. With offices around the globe, Quest develops a variety of food products, including bakery goods, soups, ice creams, and soda pops.

For Mr. Zentz, no day is the same. As a researcher, he toils in the lab, experimenting with the application of carrageenans, enzymes and "bioflavors" to meat products. Used in deli meats, carrageenans improve texture, synerisis (moisture loss) and sliceability. Enzymes come from plant extracts and may be used to tenderize meats. Bioflavors apply Maillard Chemistry to combine sugars and amino acids under different physical conditions (time, pressure, temperature, humidity) to produce a variety of flavors.

Mr. Zentz and his company also research food safety. Mr. Zentz described a recent concern regarding the presence of Listeria bacteria in ready-to-eat meats, such as hot dogs. Once ingested, the bacteria caused gastrointestinal disorders and sometimes spread to the nervous system. Quest and other companies researched processes to prevent the growth of this harmful pathogen.

Developing new food products involves more than simply making a safer and tastier product. Each country has different laws and standards regarding food additives. Further, the additives must be implemented into the mass production process. Mr. Zentz's laboratory is specially designed to simulate plant conditions.


Once he has developed a product, he moves to a computer station to write reports and sales information. Later, he travels around the world to help companies implement his product. Recently, he traveled to oversee the trials of a new carrageenan in a Mexico City factory. "International travel is an added perk," added Mr. Zentz, who works in Quest's Chicago facility.

A graduate of UNL, Mr. Zentz praised Food Science curricula for bridging the gap between theory and application. The program "achieves an understanding that is immediately applicable," he said. As a student, he applied his classroom knowledge in the Biological Process and Development Facility. Under the guidance of Dr. Mike Meagher, he researched fermentation of genetically modified organisms. He also completed an internship with Bil Mar Foods (a division of Sara Lee). Mr. Zentz complimented the department for providing individualized attention with a strong professor to student ratio. In regard to his professors, Mr. Zentz said, "I would not be where I am today without them."

As for his own future, Mr. Zentz, 25, described the possibilities as limitless. His food science background enables him to work in a host of research, managerial, and marketing positions. "I could be living in Mexico, the Netherlands, Ireland or countless other locations throughout the world," he said.