Question

The greening of sausage may appear as a green ring not far from the casing, a green core, or a green surface. The cause of greening is the production of hydrogen peroxide by
A.hetero-fermentative species
B. catalase negative bacteria
C. both (a) and (b)
D. none of these

Answer 1

The answer is Hetero-fermentative species and catalase negative bacteria...

Answer 2

The greening of sausage may appear as a green ring not far from the casing, a green core, or a green surface. The cause of greening is the production of hydrogen peroxide by
A.hetero-fermentative species
B. catalase negative bacteria
C. both (a) and (b)
D. none of these

A.hetero-fermentative species

they will produce CO2 and other by-products only under certain conditions or from specific substrates. These strains would include Lb. plantarum, Lb. casei and Lb.