Comparison of Physicochemical Properties and Anti-Microbial Activities of Tea and Cocoa-Based Kombucha

ABSTRACT

Kombucha tea is a slightly sweet, slightly acidic refreshing beverage consumed worldwide. Kombucha is a symbiosis of the Genera Acetobacter and Gluconobacter, with Acetobacter xylinum as a characteristic species, and various yeasts such as genera of Brettanomyces, Zygosaccharomyces, Saccharomyces and Pichia depending on the source. The tea fungus broth is composed of two portions, a floating cellulosic pellicle layer and a sour liquid broth. Black and green tea are known to be the best substrate for kombucha preparation. Black tea and cocoa powder served as the substrate in this study. The aim of the study was to compare the physical and chemical as well as the antimicrobial properties of tea and cocoa-based kombucha. The study revealed that tea kombucha is more acidic compared with cocoa kombucha, both tea and cocoa kombucha have similar phytochemicals. Tea and cocoa kombucha were found to inhibit the growth of Candida albican and Shigella spp, confirming it antimicrobial activity. The presence of phytochemicals and antimicrobial properties support the school of taught that kombucha drink provide a maximum health benefit to humans.