Types Of Microbiological Milk Test
Types Of Microbiological Milk Test 1️⃣ Total Plate Count (TPC) / Standard Plate Count (SPC) Purpose: Measures total bacteria present in milk. Method: Milk sample diluted Poured on Plate Count Agar Incubated at 37°C for 48 hours Result: Counted as CFU/ml (Colony Forming Units) Acceptable Limits: Milk Type Limit Raw Milk ≤ 1,000,000 CFU/ml Pasteurized Milk ≤ 30,000 CFU/ml 2️⃣ Coliform Test Purpose: Detects fecal contamination & hygiene failure Method: Media: VRBA / MacConkey Agar Incubation: 37°C for 24 hrs Result: Pink/red colonies = coliform present Acceptable Limit: Pasteurized milk: Absent 3️⃣ E. coli Test Purpose: Detects dangerous fecal bacteria Method: Media: EMB / MacConkey Agar Confirmation: Metallic green sheen on EMB Acceptable Limit: Absent in 1 ml 4️⃣ Yeast & Mold Count Purpose: Checks spoilage organisms Method: Media: Potato Dextrose Agar (PDA) Incubation: 25°C for 3–5 days Result: Fungal...