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Rapid Kinetic Fluorogenic Quantification of Malondialdehyde in Ground Beef.
Keshav Raj Bhandari1, Max Wamsley1, Bindu Nanduri2
1Department of Chemistry, Mississippi State University, Starkville, MS 39762, USA.
Foods (Basel, Switzerland)
|July 29, 2025
Summary
A new ultrafast method quantifies malondialdehyde (MDA) in ground beef in 6 minutes. Washing and decanting reduce MDA, while air exposure and cooking increase it, aiding consumer choices for safer meat.
Area of Science:
- Food Science
- Analytical Chemistry
- Biochemistry
Background:
- Malondialdehyde (MDA) is a mutagenic compound linked to lipid peroxidation, impacting meat quality and safety.
- Current MDA quantification in tissues is time-consuming (approx. 2 hours) and labor-intensive.
- Accurate MDA measurement is crucial for food industry standards and consumer health.
Purpose of the Study:
- To develop and validate an ultrafast kinetic fluorogenic assay for MDA quantification in ground beef.
- To assess the impact of handling and cooking methods on MDA levels in ground beef.
- To provide a rapid, reliable method for MDA analysis in food research and industry.
Main Methods:
- Utilized a 2-thiobarbituric acid (TBA) fluorogenic probe for kinetic analysis.
- Developed an assay with a total time of 6 minutes from sample prep to data acquisition.
- Validated assay robustness using sample volume variation and standard addition.
Main Results:
- The ultrafast assay significantly reduced MDA quantification time.
- Ambient air exposure and cooking increased MDA levels in ground beef.
- Washing raw ground beef and decanting broth from cooked beef reduced MDA content.
Conclusions:
- The developed 6-minute assay offers a rapid and robust method for MDA quantification in ground beef.
- Understanding the effects of food handling on MDA levels can inform safer consumption practices.
- This assay is suitable for both food industry quality control and research applications.
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