Table 1. Comparison of the costs between MMS, BSM and TSB medium for B. subtilis for mass culture

Component	MMS		BSM		TSB
	Conc. (%)	Cost (￦)	Conc. (%)	Cost (￦)	Conc. (%)	Cost (￦)
Soy bean flour	0.8	16,000	-	-	-	-
Glucose	0.5	12,000	-	-	0.25	6,000
NaCl	0.15	1,000	-	-	0.5	3,400
K2HPO4	0.25	12,100	-	-	0.25	12,100
Na2CO3	0.05	1,500	-	-	-	-
MgSO4	0.1	1,500	-	-	-	-
Peptone	-	-	-	-	2	858,000
Sucrose	-	-	2.0	21,500
Soytone	-	-	0.5	125,000
TOTAL	44,100/ton		146,500/ton		910,100 (3,250,000/BD)