Microbes in animal products

Question 1

Redox potential of meat

Answer 1

• oxidation of ferrous-oxymyoglobin to ferric-metmyoglobin

Question 2

Pseudomonas

Answer 2

psychrotrophic, digests proteins into amino acids and ammonium (foul smell and slime), can be limited by CO2

Question 3

Brochothrix thermosphacta

Answer 3

• g+, psychrotrophic, facultative anaerobe, tolerates salt, low pH, and grows in MAP conditions

Question 4

Aflatoxins and fumonisins

Answer 4

Aflatoxins associated with aspergillus and liver damage, fumonisins found in corn and linked with oesophageal cancer