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Lowering sausage heating temperatures may boost yield and save energy without impacting microbial safety. This study investigated microbial distribution and heating effects on sausage quality.

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Area of Science:

  • Food Microbiology
  • Food Science and Technology
  • Microbial Ecology

Background:

  • Microbial contamination in food production is a significant concern.
  • Understanding microbial distribution in raw materials and finished products is crucial for food safety.
  • Heating processes are essential for controlling microbial load in sausages.

Purpose of the Study:

  • To investigate the distribution of microorganisms in raw materials and sausages.
  • To examine the effect of heating temperature on sausage quality parameters.
  • To provide preliminary data for the food industry regarding sausage production.

Main Methods:

  • Microbial enumeration of total microbes in raw materials and sausages.
  • Identification of specific bacterial species (e.g., Bacillus, Staphylococcus, Enterococcus).
  • Assessment of sausage quality attributes (pH, hardness, yield) at different heating temperatures.

Main Results:

  • Total microbial counts in raw materials ranged from 1.59-7.16 Log CFU/g.
  • Specific bacteria like Bacillus pumilus and B. subtilis were found in both raw materials and sausages.
  • Increasing heating temperature showed a trend of decreasing total microbes in sausage, though not significantly, and increased pH and hardness.

Conclusions:

  • Decreasing heating temperature during sausage production may enhance yield and conserve energy.
  • The observed microbial load reduction with higher temperatures was not significant, suggesting potential for lower temperature processing.
  • Further research could optimize heating parameters for improved sausage yield and energy efficiency without compromising safety.