subtilin

An antibiotic peptide obtained from the bacterium Bacillus subtilis that is active against gram-positive bacteria and various pathogenic fungi.

[New Latin subtīlis, species name (from Latin, delicate; see subtle) + -IN.]

Antibiotic isolated from a strain of Bacillus subtilis grown on a medium containing asparagine. Used as a food preservative as it reduces the thermal resistance of bacterial spores and so permits a reduction in the processing time (not permitted in the EU).

The noun has one meaning:

Meaning #1: a polypeptide antibiotic (similar to bacitracin) obtained from a soil bacterium