Jawaid et al. and Sherman have suggested that the functional group region is better for classification and prediction than the fingerprint region, because most of the information used to interpret the MIR spectrum is usually obtained from the former, whereas the fingerprint region is normally complex with many frequently overlapped bands.16,28 In our study, the fingerprint region gave better results than the functional group region with respect to the quantative prediction of starch adulteration in the onion powder samples. Moreover, Filippov also discribed the use of the fingerprint region of MIR for the identification of carbohydrates.29 For more information readers should refer to ref 29 and references cited therein.