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A Tandem Liquid Chromatography–Mass Spectrometry-based Approach for Metabolite Analysis of Staphylococcus aureus
Published on: March 28, 2017
FOOD MICROORGANISMS INFLUENCING THE GROWTH OF STAPHYLOCOCCUS AUREUS
Applied Microbiology
|November 1, 1963
Summary
Microbial cultures from various foods were screened for their effects on Staphylococcus aureus growth. Many isolates inhibited S. aureus, with lactic acid bacteria showing the most inhibitory activity.
Area of Science:
- Food microbiology
- Microbial ecology
- Bacteriology
Background:
- Microbial contamination of food poses a significant public health risk.
- Understanding microbial interactions is crucial for food safety and preservation.
- Staphylococcus aureus is a common foodborne pathogen.
Purpose of the Study:
- To isolate and characterize microorganisms from various food products.
- To assess the influence of these isolates on the growth of Staphylococcus aureus.
- To identify microbial factors affecting S. aureus proliferation in food.
Main Methods:
- Isolation of 870 microbial cultures from diverse market foods.
- Screening for growth-influencing effects on S. aureus using spot-plate tests.
- Retesting effective cultures at different temperatures (15, 30, 42°C).
- Classification of isolates and further testing in broth cultures.
Main Results:
- Over half of the effective cultures inhibited S. aureus growth.
- Pork sausage yielded the most inhibitory cultures; stewing beef the least.
- Lactic acid bacteria, Streptococcus, Leuconostoc, and Lactobacillus genera were predominantly inhibitory.
- APT agar and 15°C incubation were optimal for screening.
Conclusions:
- Many foodborne microorganisms can inhibit or stimulate Staphylococcus aureus growth.
- Specific bacterial groups, like lactic acid bacteria, show significant inhibitory potential.
- Food matrix and environmental conditions influence microbial interactions impacting S. aureus.
- Findings contribute to strategies for controlling S. aureus in food products.
Keywords:
ACHROMOBACTERAEROBACTERAEROBACTER AEROGENESALCALIGENESBACILLUSESCHERICHIAESCHERICHIA COLIFLAVOBACTERIUMFOODLACTOBACILLUSMICROCOCCUSPARACOLOBACTRUMPROTEUSSTAPHYLOCOCCUSSTREPTOCOCCUSYEASTSMore Related Videos
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