PMID- 24811490 OWN - NLM STAT- MEDLINE DCOM- 20150119 LR - 20240109 IS - 1520-5118 (Electronic) IS - 0021-8561 (Linking) VI - 62 IP - 22 DP - 2014 Jun 4 TI - Nontargeted detection of adulteration of skim milk powder with foreign proteins using UHPLC-UV. PG - 5198-206 LID - 10.1021/jf404924x [doi] AB - Chromatographic profiles of skim milk powder (SMP) and mixtures of SMP with soy (SPI), pea (PPI), brown rice (BRP), and hydrolyzed wheat protein (HWPI) isolates were obtained by ultrahigh-performance liquid chromatography (UHPLC) with 215 nm detection. Two data analysis approaches were compared for their utility to classify samples as authentic or adulterated. The t test approach evaluated data points exceeding the 99% confidence limit of the mean authentic SMP chromatogram and used data points from the entire chromatogram. The other approach used the multivariate Q statistic from a SIMCA model of authentic samples to determine adulteration and used a selected retention window to obtain best classifications. Q-Statistic and t test correctly classified adulteration of SMP with SPI at the 1% and 3% levels, respectively, while minimizing false classifications of authentic SMP. Detection of SMP adulterated with PPI, BRP, and HWPI was possible at higher adulteration levels. FAU - Jablonski, Joseph E AU - Jablonski JE AD - Center for Food Safety and Applied Nutrition, Division of Food Processing Science and Technology, U.S. Food and Drug Administration , 6502 South Archer Road, Bedford Park, Illinois 60501, United States. FAU - Moore, Jeffrey C AU - Moore JC FAU - Harnly, James M AU - Harnly JM LA - eng PT - Evaluation Study PT - Journal Article DEP - 20140520 PL - United States TA - J Agric Food Chem JT - Journal of agricultural and food chemistry JID - 0374755 RN - 0 (Plant Proteins) RN - 0 (Powders) SB - IM MH - Animals MH - Cattle MH - Chromatography, High Pressure Liquid/instrumentation/*methods MH - Food Contamination/*analysis MH - Milk/*chemistry MH - Oryza/chemistry MH - Pisum sativum/chemistry MH - Plant Proteins/*analysis MH - Powders/*chemistry MH - Glycine max/chemistry MH - Triticum/chemistry EDAT- 2014/05/09 06:00 MHDA- 2015/01/20 06:00 CRDT- 2014/05/10 06:00 PHST- 2014/05/10 06:00 [entrez] PHST- 2014/05/09 06:00 [pubmed] PHST- 2015/01/20 06:00 [medline] AID - 10.1021/jf404924x [doi] PST - ppublish SO - J Agric Food Chem. 2014 Jun 4;62(22):5198-206. doi: 10.1021/jf404924x. Epub 2014 May 20.