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Effect of Heat treatment (Temperature above 100℃) on Lactose:(a) Greenish color(b) Bluish color(c) Brownish color(d) Reddish colorI have been asked this question in an online quiz.The doubt is from Changes In Milk and its Constituents topic in portion Chemistry of Milk of Dairy Engineering

Answer»

The correct option is (C) BROWNISH color

Easy explanation: Lactose undergoes CHANGES more readily in milk than in the dry state. At temperatures above 100 °C a reaction TAKES place between lactose and protein, resulting in a brownish color.



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