Aureobasidins, new antifungal antibiotics. Taxonomy, fermentation, isolation, and properties

Aureobasidins A to R were isolated from the fermentation broth of Aureobasidium pullulans R106. Aureobasidins are cyclic depsipeptide antibiotics with MW's ranging from 1.070 to 1,148. Aureobasidins showed high in vitro antifungal activity against Candida albicans.