Table 9. Comparison of microorganisms capable of producing alkaline proteases.

Microbe	Optimum pH for activity	Optimum temperature for activity	Optimum pH for activity	Optimum temperature for production	Optimum agitation rate for production	References
Alcaligenes faecalis	9	55°C	8	30°C	200 rpm	[44]
Bacillus sp. JB99	11	70°C	10	55°C	180 rpm	[45]
Bacillus sp. SSR1	10	40°C	10	40°C	150 rpm	[46]
Bacillus brevis MTCC B0016	10.5	37°C	10.5	37°C	200 rpm	[47]
Bacillus mojavensis	10.5	60°C	7	50°C	200–250 rpm	[48]
Oligotropha carboxydovo-rans DSM1227	9	60°C; 50°C	-	-	-	[49]
Bacillus pumilis MK6-5	11.5	50–55°C	9.6	35°C	250 rpm	[41]
Bacillus subtilis RJAS 19	9.5	65°C	9	50°C	-	[50]
Bacillus licheniformis MZK-03	8.5	37°C	5–12	37°C	200 rpm	[42]
Bacillus firmus 7728	9	40°C	9	40°C	120 rpm	[43]
Bacillus infantis SKS1	10	50°C	10	40°C	100 rpm

Production parameters and characteristics of alkaline proteases produced by various microorganisms were compared.