Development of a Chemically Defined Medium for Better Yield and Purification of Enterocin Y31 from Enterococcus faecium Y31

Table 2

Effects of CaCl₂ and glycerol on the growth of Enterococcus faecium Y31 and Enterocin Y31 production.

Added components	ODmax (600 nm) after 16 h	Enterocin Y31 production (AU/mg protein)
None (CDM)
10 g/L CaCl2
50 g/L glycerol

Note: CDM is explained in Table 1, and means in the same row not sharing a common superscript letter are significantly different from each other ().