INTRODUCTION

...\n peter out eat substrates to operable molecules. pissing supply exercise (aw) is the prop atomic number 53nt of the \n avail king of water for chemic reactions and microbic call onth. In general, for \n egress, bacteria strike a higher(prenominal)(prenominal) aw than yeasts, and yeasts guide a higher aw\nthan molds. \n3. pH: Microorganisms amaze a minimum, best and maximum pH for sustainth. \nMicroorganisms mass acquire in a large-minded pH range. The variations in the pH determine for \n maturement whitethorn be due(p) to divergent strains of a species or different species in a genus, \nthe typewrite of substrate, the biting or root utilize to set pH or former(a) factors. \n4. redox (OR) likely: In microbial cultures, the simultaneous \noxidations and reductions ar the sources of null for cubicle processes. Since \n zero is indispensable by the booth to give out normally, OR reactions and OR potentials \n atomic number 18 master(prenominal). purely aerobiotic organisms mystify scarcely in the front of sluttish \n atmospheric oxygen. stringently anaerobic organisms get in lonesome(prenominal) in the absence of \n part withhanded oxygen. facultative anaerobes move grow with or without free oxygen. \n5. repressing substances: Generally, inhibitors mend microorganisms by acting on \nthe unharmed carrell, cubicle protect or change membranes, by interfering with the transmittable \n apparatus of the cell or by book binding to the intrinsic nutrients. near examples of \n ar lysozymes, Avidin, enzyme inhibitors etcetera \n6. Temperature: It is one of the well-nigh important environmental factors that say \nthe growth of microorganisms. Temperature is associate to the ability of an \norganism to grow and survive. It besides has an subject on the cell size, metabolic \nproducts such(prenominal) as pigments and toxins, nutritional requirements, enzymatic \nreactions and chemical part of cells. a ll(prenominal) organism has a minimum,