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  • Title: A rapid reversed-phase thin layer chromatographic protocol for detection of adulteration in ghee (clarified milk fat) with vegetable oils.
    Author: Rani A, Sharma V, Arora S, Lal D, Kumar A.
    Journal: J Food Sci Technol; 2015 Apr; 52(4):2434-9. PubMed ID: 25825547.
    Abstract:
    Detection of milk fat adulteration with foreign fats/oils continues to be a challenge for the dairy industry as well as food testing laboratories, especially in the present scenario of rampant adulteration using the scientific knowledge by unscrupulous persons involved in the trade. In the present investigation a rapid reversed-phase thin layer chromatographic (RP-TLC) protocol was standardized to ascertain the purity of milk fat. RP-TLC protocol did not show any false positive results in the genuine ghee (clarified butter fat) samples of known origin. Adulteration of ghee with coconut oil up to 7. 5 %, soybean oil, sunflower oil and groundnut oil up to 1 %, while, designer oil up to 2 % level could be detected using the standardized RP-TLC protocol. The protocol standardized is rapid and convenient to use.
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