Assessment of some selected pathogenic microbes of selected soft drinks sold on the markets in Cape Coast Metropolis, Ghana

Abstract

Soft drinks are widely consumed globally and are generally considered safe due to their carbonation and low pH. However, microbial contamination during processing and storage remains a concern. Ten different brands of soft drinks were purchased from markets in Cape Coast based on consumer preference. Bacteriological analyses were carried out on these brands of soft drinks using the standard procedures. The results indicated negative for Escherichia coli for all tested samples but color changes occurred on the media during some weeks. However, Salmonella spp. was detected in some samples, with one case exhibiting too numerous to count microbial load. Therefore, colony counts ranged from 0 cfu/mL to TNTC (too numerous to count). These findings indicate that soft drinks are safe for consumption, however, occasionally contamination may occur. Hence, regular monitoring should be carried out by regulatory bodies to ensure that soft drinks produced and sold at all times are safe for consumption.