Mesophilic organisms are those that grow best at temperature of -
Bacteria which grow best at temperatures 25o C to 40o C are Mesophilic organisms Examples: Pseudomonas aeroginosa,gonococus Ref: Ananthanarayan & paniker's Textbook of Microbiology 9th edition pg no 25
-20o C to -7o C
-7o C to +20oC
25o C to 40o C
55o C to 80o C
general microbiology