Milk Tests

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milk test

Transcript of Milk Tests

All the three types of milk need to be tested daily TM, SM, FCMDate: Batch No: Weight Fat%, Acidity, LR Lactometer reading, CLR Corrected Lactometer reading, SNF% , Adulteration- Carry out three different tests daily.

AcidityFill the burette with NaOH solution.Take 10 ml of milk in the conical flask add few drops of Phenolphthalein as a indicatorTitrate continuously till the appearance of permanent pale pink color Fat %Carry out fat test simultaneously for all the three types of milk.Gerber tube- Fill 10 ml of 90% sulfuric acid10.75 ml of milk and followed by 1 ml of iso aml alcoholKeep it for digestion by enclosing it with stopperEnsure there are no curd particlesKeep it in centrifuge for 5 min.With the help of stopper read the fat value.Note: Please keep the balancing tube while placing the experiment tube in the centrifuge.Lactometer reading:Fill the beaker with milk completely (even above the markings). Place the lactometer in the beaker.Note down the value. Value that is seen should not be taken. Note down the temperature of the milk.Calculate the corrected lactometer reading using the below formulaCLR= (LR (84* - T)*0.17).

SNF%SNF%=CLR/4 + (0.2* Fat) +0.36Note down the SNF value for all three types of milk.

Adulteration Test: