goats milk adulteration (1)

4248264363?profile=RESIZE_710xBecause of its higher price, goats milk is vulnerable to adulteration by cheaper cows milk. A rapid method based on β-carotene as a marker for cows milk, but absent in goats milk, has been developed using Raman and Infrared spectroscopy with chemometrics. The application of PLSR (partial least squares regression) to the two spectrocopic methods was the most successful giving an good correlation coefficient of validation (R2 value > 96) and an accurate determination of β-carotene content and percentage in spiked milk.

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