Subtilin

Name:
Subtilin
Detailed information:
An antibiotic produced by the metabolic processes of a strain of Bacillus subtilis. It is a cyclic polypeptide similar to bacitracin in chemical structure and antibiotic activity, but not as important clinically. Subtilin is active against many Gram-positive bacteria, some Gram-negative cocci, and some species of fungi. It is a surface tension depressant and its antibiotic action is increased by use of wetting agents.

Properties:

Soluble in water in pH range 2.0–6.0. Soluble in methanol and ethanol (up to 80%); insoluble in dry ethanol or other common organic solvents. Relatively stable in acid solutions. Inactivated by pepsin and trypsin and destroyed by light.

Use:

Seed disinfectant, bacteriostat in foods.