Microbiological Quality and Safety of Energy Drink Available in the Local Markets in Saudi Arabia.
Energy drinks have become a popular beverage worldwide. The global market for energy drink has gained momentum in the
past decade, and demand is increasing every year. The objective of this study was to evaluate the microbiological quality and
safety of commercial energy drinks available in the local stores in Saudi Arabia. Total bacterial count, coliform,
Escherichia
coli, Salmonella
, and
Staphylococcus aureus
were included in this analysis. Out of a total of 20 tested energy drinks, microbial con-
tamination was present in only two products. Microbial levels of the total bacterial count for most of the samples were very
low (< 1.0 log CFU/ml). The initial biochemical analysis from these two samples indicated the presence of
Bacillus
which is
common spoilage bacteria in soft drinks showed bacterial contamination. In addition, we also tested the impact of energy
drinks on beneficial microorganisms (
Bifidobacterium
and
Lactobacillus
spp). We found that in all tested energy drinks bacte
-
rial population decreased by at least 4.0 log CFU/ml indicating the negative effects of drinks on the survival of beneficial
microorganisms. Our findings suggested that safety improvements are needed in these energy drinks. Moreover, consumers
also need to be educated regarding the impact of various ingredients, their safety, and recommendation regarding the use of
these drinks. This will help to ensure safe products available for today’s savvy, health-conscious consumer. Thus, the proposed
methodology could be useful for quality and safety control purposes in the energy drinks industry.
