A Fourier transformed near‐infrared (FT‐NIR) method for rapid determination of cholesterol in dairy products was demonstrated. FT‐NIR spectrum of pure cholesterol was characterized and the region between 3550 and 3650 cm−1 was found to be the most significant in cholesterol content determination. The FT‐NIR method was found to accurately predict the cholesterol content in a variety of dairy products with r2 value greater than 0.98 and SEP estimates of less than 1.70. The FT‐NIR procedure with suitable multivariate statistical model was further validated by recovery studies and compared with a conventional method. Results indicate that FT‐NIR has the potential for rapid estimation of cholesterol.
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Paradkar et al. (2002) studied this question.