Use: test for screening, rapid assessment of acidity.
Advantages: quick, cheap.
Alternatives: Clot on Boiling (COB) test, Acidity test
Principle:
Proteins in milk that has become sour (i.e. because of lactic acid formation) will coagulate when mixed with alcohol.
Equipment and materials:
Procedure:
1) Mix equal amounts (e.g. 2 ml) of milk and ethanol solution in test tube with the pipette.
2) Agitate by gentle movement and look for coagulation.
Interpretation
Milk containing more than 0.21% acid and milk that is abnormal (e.g. colostrum or mastitis milk) will not pass the test. This milk is not fit for further processing.
Soil science is a specialized branch of agriculture which associated with the different areas of soil…
In an instrumentation and Process control system, data is acquired by measuring instruments and transmitted…
Dairy Cattle Nutrition and Reproduction is Improving energy balance by increasing energy intake through additional…
Human nutrition is the process by which substances in food are transformed into body tissues and…
B.Tech (Dairy Technology) The course ware material is prepared as per ICAR approved syllabus for…
At present the Fundamentals of horticulture may be defined as the science and technique of…
Download our App
Download Now
View Comments
In the alcohol test to determine if its positive or negative do you have to discard the mixture of milk and alcohol or observe it for a few moment ?
In the alcohol test for milk to determine if its negative of positive do you need to discard the mixture o you just observe it for a moment to determine the result ?