1.Take 10 ml of milk.
2.Add 3-4 drops of 1% Phenolphthalein indicator.
3.Titrate with 0.1 N NaOH.
4.Note down the titre value at the end point i.e. light pink colour.
Acidity(% Lactic Acid)= 9*Titre Volume*Normality/Volume of Milk Sample
2.Add 3-4 drops of 1% Phenolphthalein indicator.
3.Titrate with 0.1 N NaOH.
4.Note down the titre value at the end point i.e. light pink colour.
Acidity(% Lactic Acid)= 9*Titre Volume*Normality/Volume of Milk Sample
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