Lactic acid bacteria lack the ability to synthesize cytochromes and poryphirins and
therefore cannot generate ATP, they obtain ATP only through sugar fermentation since lactic
acid bacteria does not use oxygen in their energy production. Lactic acid bacteria can be
easily grown in aerobic and as well as anerobic conditions, they are protected by oxygen
byproducts because they have peroxidases, they are also known as aerotolerant
anerobes(Michaela et al., 2009). These bacteria are differentiated from the other micro
organisms by the ability to convert hexoses to lactic acid.