Application of chemometrics for detection and modeling of adulteration of fresh cow milk with reconstituted skim milk powder using voltammetric fingerpriting on a graphite/ SiO 2 hybrid electrode
作者: Pavlos NikolaouEfstathios DeskoulidisEmmanuel TopoglidisAnna Tsantili KakoulidouFotios Tsopelas
作者单位: 1Materials Science Department, School of Natural Sciences, University of Patras, Patras 26504, Greece
2Department of Pharmaceutical Chemistry, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 157 71 Athens, Greece
3Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, Iroon Polytechniou 9, 15780 Athens, Greece
刊名: Talanta, 2020, Vol.206
来源数据库: Elsevier Journal
DOI: 10.1016/j.talanta.2019.120223
关键词: Fresh milk adulterationReconstituted skim milk powderVoltammetryGraphite/ SiO 2 hybrid electrodePartial least squares (PLS) regression analysisSoft independent modeling of class analogy (SIMCA)
原始语种摘要: Abstract(#br)In the present work, an analytical approach for the voltammetric detection and prediction of adulteration of fresh cow milk with reconstituted skim milk powder is developed. After precipitation of milk proteins upon addition of ethanol and centrifugation, the supernatant liquid of the samples was analyzed by cyclic voltammetry on a novel graphite/SiO 2 hybrid working electrode (GSiHE) using LiClO 4 as electrolyte. Under these conditions, fresh milk samples gave broadened peaks/plateaus in both forward and backward potential scanning, attributed mainly to oxidases. Such peaks were not evident in the case of reconstituted skim milk powder samples due to inactivation of enzymes and breakdown of certain antioxidants caused by heat and pressure-treatments. The differences between...
全文获取路径: Elsevier  (合作)
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影响因子:3.498 (2012)

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关键词翻译
关键词翻译
  • adulteration 掺杂
  • graphite 石墨
  • powder 粉末
  • hybrid 杂种
  • electrode 电极
  • Application 应用
  • chemometrics 化学计量学
  • modeling 制祝型
  • fresh 新鲜的
  • detection 探测