The reliable cure
High levels of chitosan can even kill those typhoid-causing microbes that cannot be otherwise controlled by commonly-used drugs |
| Chitosan* (in microgrammes) | Zone of inhibition** (in millimetres) | | Bacteria | Zone of inhibition (in millimeters) |
| 1,000 | 40 | | | |
| 800 | 40 | | Staphylococcus aureus | 40 |
| 600 | 38 | | Bacillus subtilis | 20 |
| 400 | 35 | | Pseudomonas aeruginosa | 16 |
| 200 | 30 | | Salmonella enterica | 32 |
| 100 | 29 | | Escherichia coli | 18 |
| 50 | 15 | | S enterica variant Paratyphi-A | 32 |
| 10 | Nil | | S enterica variant Paratyphi-B | 25 |
*Activity against Salmonella enterica; **Zone of inhibition is where a chemical inhibits the growth of bacterium in a test medium. If the diameter of the zone is more than 15 millimetres, the chemical is said to have antimicrobial property
Source: Current Science, November 10, 2004 |