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Fraud detection in crude palm oil using SERS combined with chemometrics.

Authors
  • Yao-Say Solomon Adade, Selorm1
  • Lin, Hao2
  • Jiang, Hao3
  • Haruna, Suleiman A3
  • Osei Barimah, Alberta3
  • Zareef, Muhammad3
  • Akomeah Agyekum, Akwasi3
  • Adwoa Nkuma Johnson, Nana3
  • Mehedi Hassan, Md3
  • Li, Huanhuan4
  • Chen, Quansheng5
  • 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Department of Nutrition and Dietetics, Ho Teaching Hospital, Ho, Ghana. , (China)
  • 2 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: [email protected] , (China)
  • 3 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China. , (China)
  • 4 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: [email protected] , (China)
  • 5 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
Food chemistry
Publication Date
Apr 15, 2022
Volume
388
Pages
132973–132973
Identifiers
DOI: 10.1016/j.foodchem.2022.132973
PMID: 35447589
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Edible crude palm oil (CPO) is a vital oil utilized in various industries, including food, pharmaceuticals, and domestic cooking. Unfortunately, reports of CPO adulteration with harmful Sudan dyes have surfaced over the years. Surface-enhanced Raman spectroscopy (SERS) and chemometrics were employed to detect Sudan dyes adulteration in CPO within 900 - 1800 cm- 1 Raman peak. The concentration of Sudan dyes detected in CPO samples ranged between 0.005 and 4 ppm. The principal component analysis (PCA) model detected Sudan II and Sudan IV in CPO with 99.88 and 99.90% accuracy. Linear discriminant analysis (LDA) and K-Nearest Neighbors (KNN) also recorded high detection rates of Sudan II and IV dyes in CPO. Sudan II and IV dyes could be detected at 0.0028 ppm and 0.0019 ppm by this sensor. The performance of the [email protected] SERS sensor was comparable to that of HPLC. This study proved SERS and chemometrics can be used to authenticate edible CPO. Copyright © 2022 Elsevier Ltd. All rights reserved.

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