Characterization performed on antibacterial property ! (Example: Cocoa)
When Biomatic VDCS with SensiMedia is used for characterization, the microbial growth is evaluated by graph easily. A sample added to SensiMedia becomes a part of the liquid culture media so that the sample affects to the growth of microorganism under evaluation. The graph obtained for evaluation reflects the growth support or inhibition effect of the media.
In many cases, plant-derived foods exhibit antibacterial properties. For it is said that cocoa has such property, the experiment was conducted to find out how effective cocoa is to Gram-positive and Gram-negative bacteria.
Effect on Salmonella typhimurium
It was observed that as the amount of cocoa increases from 1% to 2%, the growth of S. typhimurium, a gram-negative microorganism was suppressed accordingly.
Effect on Staphylococcus aureus
In case of Staphylococcus aureus, a gram-positive microorganism, as the amount of cocoa increases from 1% to 2%, the growth of the microorganism was suppressed entirely when cocoa concentration exceeded 3%.
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