[Joint cultivation of Streptococcus lactis, LMU strain, and various species of yeasts]

When S. lactis, strain LMU and yeast were plated out simultaneously on media containing different amounts of amine nitrogen and vitamins, the yeast did not stimulate the synthesis of nisin. Plating out of S. lactis on media with grown cultures of the Rostov baker's yeast, American baker's yeast, Candida guilliermondii, Candida clausenii, Fabospora fragilis, Fabospora macedoniensis, Octosporomyces octosporus, Saccharomyces cerevisiae, races "Ya" and "M" and Saccharomyces globosus resulted in inhibition of the S. lactis growth and nisin synthesis. Cultivation of S. lactis on media with grown cultures of Saccharomyces ludwigii, Hansenula anomala, Kluyveromyces lactis, Endomyces magnusi, Zigowilliopsis californicus, and Rhodotorula colostri resulted in formation of an association providing active growth and development of S. lactis with complete realization of its biosynthetic capacity.