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[image] '5 _iStock Credit: astra490.
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[Audio] Definition: It is the time in hours elapsed from milk production until it is become unfit for human consumption either: It is clot on boiling or development of unpleasant flavour when stored at 15.5 degrees celsius, 18 degrees celsius or 22 degrees celsius. Sanitary and keeping quality tests Tests depend on acidity. Tests depend on enzymes. Tests depend on sediment and. 10/4/2023 dr. Ibrahim Hassan Amer Bacteriological examination of milk..
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[Audio] a Tests depend on acidity: 1-Clot on boiling test: (C O B ) 5 ml of milk are put in test tube which is boiled in water bath for 5 minutes. Result and judgement: When the milk becomes a mass of solid material or appearance of very fine particles on the sides of the tube considered: positive. 10/4/2023 dr. Ibrahim Hassan Amer.