TOTAL MICROBIAL COUNT [BACTERIA, FUNGI/MOLDS AND YEAST]
OBJECTIVE Test for Total Microbial Count is provided to determine compliance with the requirements given in individual monograph / specifications. PRINCIPLE Total microbial count is the estimation of the number of viable aerobic micro-organisms present in the pharmaceutical articles of all kinds, from raw materials to the finished forms. BUFFERS AND MEDIA 1. pH 7.2 Phosphate Buffer Stock Solution Dissolve 34 g of Monobasic Potassium Phosphate in about 500 mL of water contained in a 1000 mL volumetric flask. Adjust to pH 7.2 ± 0.1 by the addition of 4 % w/v aqueous solution of Sodium Hydroxide (about 175 mL), add water to volume, and mix. Dispense and sterilize. Store under refrigeration. For use, dilute the Stock Solution with water in the ration of 1 to 800 , and sterilize in an autoclave at 121 OC , 15 lb pressure for about 15 min. 2. Fluid Soyabean Casein Digest Medium Pancreatic Digest of Casein 17.0 g Papacy Digest of Soybean Meal 3.0 g Sodium Chloride 5.0 g Dibasic Potassium Phos...