NDRI Quinquennium Book COVER FINAL CURVE.cdr

Rapid method for detection of vegetable oils inghee••A rapid colorimetric test for detection of vegetable oiladulteration in ghee has been developed.TheQuinquennium Golden2007-2012Rapid method for the detection of detergent in milk indicating purple andblue colour in lower layer in pure and adulterated milk.with different levels (150, 400 and 800 mg L-1 labolene) ofdetergent. The recovery was quantitative.A Test for Detection of 'Soyamilk' in Milk••A colour based test was developed to detect adultration ofsoya milkup to 2.5% in milk.Rapid method for the detection of detergent in milk indicating purple andblue colour in lower layer in pure and adulterated milk.Rapid method for the detection of detergent in milk indicating purple andblue colour in lower layer in pure and adulterated milk.••Two simple enzymatic colour based methods forascertaining the heat treatment of milk around 80°Cwere developed based on the development of colour whensubstrates of GGTP or LPO added to milk samples. Activeenzymes result in formation of pink coloured productsin both cases. Absence of pink colour indicates enzymeis inactivated during heat treatment. Results indicatethat at 80°C, there is no formation of pink colour thus,indicating the complete destruction of both GGTP andLPO. However, in raw milk as well as in milk heated atother temperatures (65° to 75°C), a distinct pink colourformation was observed, which can be distinguishedvisually. These methods are simple, rapid (5-10 min) andcan be adapted by the dairy industry as indicator of heattreatment of milk around 80°C.••Methods for estimation of beta-cyclodextrin andcholesterol were standardized.23