Food Science and Technology Resources
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As a part of a packinghouse environmental monitoring program, adenosine triphosphate (ATP), protein, and allergen swabbing is used to ensure that packinghouse equipment and surfaces have been properly cleaned and prepared for sanitation. ATP, protein, and allergen swabbing is frequently incorporated to complement microbial swabbing practices or as an independent program. These swab types indicate the presence of soils and residues on equipment, determining the effectiveness of the cleaning portion of a sanitation program. Sample results can be read in minutes, unlike microbial swabs, which take days. For this reason, ATP, protein, and allergen swabs are used immediately after cleaning to rapidly confirm that cleaning procedures were thorough. Operations then sanitize and collect microbial swabs to verify the effectiveness of the sanitation process.
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Pomegranate is an emerging crop that has been experiencing a significant expansion in Georgia. Pomegranates are excellent sources of sugars, soluble fibers, vitamins, minerals, and phytochemicals, including polyphenols with strong antioxidant activity. Because of their nutritional content, pomegranates are considered functional foods (foods that provide health benefits in addition to basic nutrition). This resource describes the main phytochemicals present in pomegranate fruits and provides an overview of the potential value-added products that may be developed from Georgia-grown pomegranates.
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B 1478
Roasted Peanut Flavor
Flavor is the major determinant for consumers’ appreciation of roasted peanuts. Flavor development involves two important reactions: Maillard reaction and lipid oxidation. Maillard reaction mainly occurs during roasting to generate a pleasant “roasted” flavor. But during storage, lipid oxidation produces off-flavors and reduces roasted flavor, which is known as “flavor fade.” In order to retard lipid oxidation, high-oleic cultivars were developed. We have observed that compared to normal-oleic GA 06G, high-oleic GA 13M had higher consumer acceptability with a better capability to mitigate lipid oxidation, demonstrating that using a high-oleic trait is a potential solution to the problem of flavor fade.
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C 997
Pomegranate Production
This resource helps growers understand how to grow pomegranates for commercial or home use in Georgia, as well as general production practices common in other pomegranate-producing regions. There has been increasing consumer demand for the fruit and it’s being used in many consumer products, including tea and juice blends, nut mixes, and other foods.
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This bulletin provides the scientific basis and food-safety framework for developing a food safety plan for acid/acidified foods. This includes practical food-safety examples for the acidified foods, including foundational support of a recordkeeping system and forms. Learning how to develop a process-flow diagram, developing recordkeeping forms, and applying food-safety principles during acid/acidified-food production will provide a processor with a better understanding of how a systematic approach to food-safety principles should be applied during the production, processing, packaging, storage, and distribution of acid/acidified foods. This publication contains information on how to develop a plan, including FDA requirements for developing a food safety plan, and sample recordkeeping forms to guide an acid/acidified food processor to safely process, package, and distribute acidified foods in commerce.
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This annual publication includes a report of 2019-20 onion research variety trials and Extension activity at the University of Georgia College of Agricultural and Environmental Sciences. The report contains the results of research awarded by the Vidalia Onion Commodity Commission.
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Many third-party audits, buyers, and standard operating procedures for produce packinghouses or other food facilities require regular adenosine triphosphate (ATP) or protein swabs to verify the effectiveness of the cleaning and sanitation protocols. This video demonstrates how to collect ATP and protein swabs, how to interpret swab results, and provides advice to help determine an acceptable baseline when implementing a new swabbing program.
This video is hosted on the UGA Extension YouTube channel: https://www.youtube.com/embed/MhwZa6Cv9sU
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