Rapid Detection of Adulterants in Whey Protein Supplement by Raman Spectroscopy Combined with Multivariate Analysis.

ABSTRACT: The growing demand for whey protein supplements has made them the target of adulteration with cheap substances. Therefore, Raman spectroscopy in tandem with chemometrics was proposed to simultaneously detect and quantify three common adulterants (creatine, l-glutamine and taurine) in whey protein concentrate (WPC) powder. Soft independent modeling class analogy (SIMCA) and partial least squares discriminant analysis (PLS-DA) models were built based on two spectral regions (400-1800 cm^-1 and 500-1100 cm^-1) to classify different types of adulterated samples. The most effective was the SIMCA model in 500-1100 cm^-1 with an accuracy of 96.9% and an error rate of 5%. Partial least squares regression (PLSR) models for each adulterant were developed using two diffe

SUBMITTER: Jiao X 

PROVIDER: S-EPMC6571825 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature